Duikseizoen, maand voor maand over de hele wereld
Manta’s op de poetsstations, walvishaaien, de maanvismaanden, de weken dat het water helder is.
47 bestemmingen op SeasonMap, binnen elke maand gerangschikt op de comfortscore — want het gaat er niet alleen om waar het seizoen speelt, maar of het weer de reis ondertussen waard is.
Wanneer het speelt
Duikseizoen in januari
- La Paz 🇲🇽 MexicoWhale shark season · 1 okt – 30 aprJuvenile whale sharks feed in the shallow end of the bay from October to April, inside a federal refuge that caps boats and group sizes.93
- Fujairah 🇦🇪 Verenigde Arabische EmiratenGulf of Oman dive season · 15 okt – 15 mei (meestal)Snoopy Island and the Dibba wrecks are at their clearest in the cooler half of the year; summer plankton blooms cut the visibility badly.92
- Kish 🇮🇷 IranDiving and beach season · 15 okt – 10 mei (meestal)The water is clearest and the air bearable in the cool half of the year, which is when the dive operators and the glass-bottom boats actually run properly.91
- Jamestown Sint-HelenaWhale shark season · 1 jan – 30 apr (meestal)Whale sharks aggregate off the island between January and April and boats go out from Jamestown to snorkel with them.88
- Port Sudan 🇸🇩 SoedanRed Sea liveaboard season · 1 okt – 31 mei (meestal)The reefs off this coast — Sanganeb and the Sha'ab Rumi lagoon among them — are the reason anyone comes, and the boats run in the cooler half of the year when the water is clearest.86
- Jeddah 🇸🇦 Saoedi-ArabiëRed Sea dive season · 1 okt – 31 mei (meestal)The reefs off Obhur creek and the wrecks south of the port are clearest and calmest from autumn through spring, before the summer water goes bathwater-warm and the visibility drops away.84
- The Bottom SabaDive season · 1 dec – 30 apr (meestal)The clearest water of the year in the Saba National Marine Park, with visibility past a hundred feet at sites like the Pinnacles, and the fewest afternoon squalls.83
- Djibouti 🇩🇯 DjiboutiWhale sharks in the gulf · 1 nov – 15 feb (meestal)Plankton blooms in the Gulf of Tadjoura pull in a crowd of unusually young whale sharks, most of them only three or four metres long.79
- Koh Chang 🇹🇭 ThailandWreck and reef diving season · 1 nov – 30 apr (meestal)The months the boats run south to the HTMS Chang wreck and the Rang islands, when visibility is worth the crossing.75
- Havelock Island 🇮🇳 IndiaDive and boat season · 15 okt – 15 meiThe dive centres on Beach No.75
- Port Blair 🇮🇳 IndiaSailing and dive season · 15 okt – 10 meiThe sea settles, the catamarans to Havelock and Neil run to timetable, and every dive centre in the territory is open.73
- Mombassa 🇰🇪 KeniaWhale sharks off the coast · 1 dec – 31 mrt (meestal)Whale sharks move along the Kenyan coast through the northeast monsoon, and the boats that go looking for them run out of Diani and Watamu rather than Mombasa itself.72
- Ko Lanta Yai 🇹🇭 ThailandHin Daeng and Hin Muang season · 1 nov – 30 apr (meestal)The deep pinnacles two hours south are the reason people come here to dive, and the boats only run in the settled months.71
- Byron Bay 🇦🇺 AustraliëLeopard sharks at Julian Rocks · 1 dec – 30 apr (meestal)Through the warm months leopard sharks gather on the sand at Julian Rocks, twenty minutes offshore, and swap places with the grey nurse sharks that hold there in winter.69
- Malé 🇲🇻 MaledivenWhale sharks in South Ari · 1 jan – 31 dec (meestal)The juveniles off Maamigili are the one aggregation in the country that holds all year, which is why the day boats run out of Male in any month.62
- Vilankulo 🇲🇿 MozambiqueWhale sharks and mantas · 1 okt – 15 apr (meestal)Whale sharks and manta rays gather around the Bazaruto channel from October through to April, a window that overlaps with the archipelago's hottest and wettest months.62
- Tofo 🇲🇿 MozambiqueWhale shark season · 1 okt – 15 mrt (meestal)Whale sharks gather off the reef from October to March, most reliably in December and January when plankton blooms bring them close enough for the ocean-safari boats that launch straight off the beach at dawn.61
- Chuuk 🇫🇲 MicronesiëCalm months on the wrecks · 1 dec – 30 apr (meestal)The north-east trades settle the lagoon from about December to April, which is when the crossings to the far wrecks are comfortable and the water inside the holds is at its clearest.56
- Raja Ampat-eilanden 🇮🇩 IndonesiëManta season · 1 nov – 30 apr (meestal)Plankton in the straits brings reef mantas onto the cleaning stations around Dampier and Arborek, densest in the first months of the year.52
- Labuan Bajo 🇮🇩 IndonesiëManta season · 1 nov – 30 apr (meestal)Plankton in the channel brings reef mantas onto the cleaning stations at Karang Makassar and, further south, Manta Alley.49
Duikseizoen in februari
- Kish 🇮🇷 IranDiving and beach season · 15 okt – 10 mei (meestal)The water is clearest and the air bearable in the cool half of the year, which is when the dive operators and the glass-bottom boats actually run properly.93
- Port Sudan 🇸🇩 SoedanRed Sea liveaboard season · 1 okt – 31 mei (meestal)The reefs off this coast — Sanganeb and the Sha'ab Rumi lagoon among them — are the reason anyone comes, and the boats run in the cooler half of the year when the water is clearest.91
- La Paz 🇲🇽 MexicoWhale shark season · 1 okt – 30 aprJuvenile whale sharks feed in the shallow end of the bay from October to April, inside a federal refuge that caps boats and group sizes.91
- Fujairah 🇦🇪 Verenigde Arabische EmiratenGulf of Oman dive season · 15 okt – 15 mei (meestal)Snoopy Island and the Dibba wrecks are at their clearest in the cooler half of the year; summer plankton blooms cut the visibility badly.89
- Jamestown Sint-HelenaWhale shark season · 1 jan – 30 apr (meestal)Whale sharks aggregate off the island between January and April and boats go out from Jamestown to snorkel with them.87
- Jeddah 🇸🇦 Saoedi-ArabiëRed Sea dive season · 1 okt – 31 mei (meestal)The reefs off Obhur creek and the wrecks south of the port are clearest and calmest from autumn through spring, before the summer water goes bathwater-warm and the visibility drops away.85
- The Bottom SabaDive season · 1 dec – 30 apr (meestal)The clearest water of the year in the Saba National Marine Park, with visibility past a hundred feet at sites like the Pinnacles, and the fewest afternoon squalls.84
- Djibouti 🇩🇯 DjiboutiWhale sharks in the gulf · 1 nov – 15 feb (meestal)Plankton blooms in the Gulf of Tadjoura pull in a crowd of unusually young whale sharks, most of them only three or four metres long.80
- Havelock Island 🇮🇳 IndiaDive and boat season · 15 okt – 15 meiThe dive centres on Beach No.78
- Port Blair 🇮🇳 IndiaSailing and dive season · 15 okt – 10 meiThe sea settles, the catamarans to Havelock and Neil run to timetable, and every dive centre in the territory is open.76
- Ko Lanta Yai 🇹🇭 ThailandHin Daeng and Hin Muang season · 1 nov – 30 apr (meestal)The deep pinnacles two hours south are the reason people come here to dive, and the boats only run in the settled months.75
- Roatán 🇭🇳 HondurasWhale sharks in the Bay Islands · 20 feb – 30 apr (meestal)The reliable encounters are off Utila, an hour west by boat, where the shelf drops into deep water and the boils bring plankton up.74
- Khao Lak 🇹🇭 ThailandManta and whale shark season · 1 feb – 5 mei (meestal)The tail of the dive season at Richelieu Rock and Koh Bon, when the plankton is up and the big animals follow it.74
- Koh Chang 🇹🇭 ThailandWreck and reef diving season · 1 nov – 30 apr (meestal)The months the boats run south to the HTMS Chang wreck and the Rang islands, when visibility is worth the crossing.73
- Utila 🇭🇳 HondurasWhale shark season · 1 feb – 31 mei (meestal)Utila is one of the few places whale sharks are seen year-round, but February to May is when sightings are most reliable, peaking in March and April as plankton blooms draw them close to shore.73
- Mombassa 🇰🇪 KeniaWhale sharks off the coast · 1 dec – 31 mrt (meestal)Whale sharks move along the Kenyan coast through the northeast monsoon, and the boats that go looking for them run out of Diani and Watamu rather than Mombasa itself.72
- Malé 🇲🇻 MaledivenWhale sharks in South Ari · 1 jan – 31 dec (meestal)The juveniles off Maamigili are the one aggregation in the country that holds all year, which is why the day boats run out of Male in any month.70
- Byron Bay 🇦🇺 AustraliëLeopard sharks at Julian Rocks · 1 dec – 30 apr (meestal)Through the warm months leopard sharks gather on the sand at Julian Rocks, twenty minutes offshore, and swap places with the grey nurse sharks that hold there in winter.66
- Tofo 🇲🇿 MozambiqueWhale shark season · 1 okt – 15 mrt (meestal)Whale sharks gather off the reef from October to March, most reliably in December and January when plankton blooms bring them close enough for the ocean-safari boats that launch straight off the beach at dawn.63
- Chuuk 🇫🇲 MicronesiëCalm months on the wrecks · 1 dec – 30 apr (meestal)The north-east trades settle the lagoon from about December to April, which is when the crossings to the far wrecks are comfortable and the water inside the holds is at its clearest.60
- Raja Ampat-eilanden 🇮🇩 IndonesiëManta season · 1 nov – 30 apr (meestal)Plankton in the straits brings reef mantas onto the cleaning stations around Dampier and Arborek, densest in the first months of the year.59
- Vilankulo 🇲🇿 MozambiqueWhale sharks and mantas · 1 okt – 15 apr (meestal)Whale sharks and manta rays gather around the Bazaruto channel from October through to April, a window that overlaps with the archipelago's hottest and wettest months.59
- Labuan Bajo 🇮🇩 IndonesiëManta season · 1 nov – 30 apr (meestal)Plankton in the channel brings reef mantas onto the cleaning stations at Karang Makassar and, further south, Manta Alley.52
Duikseizoen in maart
- La Paz 🇲🇽 MexicoWhale shark season · 1 okt – 30 aprJuvenile whale sharks feed in the shallow end of the bay from October to April, inside a federal refuge that caps boats and group sizes.86
- The Bottom SabaDive season · 1 dec – 30 apr (meestal)The clearest water of the year in the Saba National Marine Park, with visibility past a hundred feet at sites like the Pinnacles, and the fewest afternoon squalls.86
- Port Sudan 🇸🇩 SoedanRed Sea liveaboard season · 1 okt – 31 mei (meestal)The reefs off this coast — Sanganeb and the Sha'ab Rumi lagoon among them — are the reason anyone comes, and the boats run in the cooler half of the year when the water is clearest.85
- Jamestown Sint-HelenaWhale shark season · 1 jan – 30 apr (meestal)Whale sharks aggregate off the island between January and April and boats go out from Jamestown to snorkel with them.85
- Kish 🇮🇷 IranDiving and beach season · 15 okt – 10 mei (meestal)The water is clearest and the air bearable in the cool half of the year, which is when the dive operators and the glass-bottom boats actually run properly.83
- Fujairah 🇦🇪 Verenigde Arabische EmiratenGulf of Oman dive season · 15 okt – 15 mei (meestal)Snoopy Island and the Dibba wrecks are at their clearest in the cooler half of the year; summer plankton blooms cut the visibility badly.81
- Jeddah 🇸🇦 Saoedi-ArabiëRed Sea dive season · 1 okt – 31 mei (meestal)The reefs off Obhur creek and the wrecks south of the port are clearest and calmest from autumn through spring, before the summer water goes bathwater-warm and the visibility drops away.79
- Tioman 🇲🇾 MaleisiëDive season · 1 mrt – 31 okt (meestal)The months the dive shops are open and the crossing from Mersing is routine.79
- Ko Tao 🇹🇭 ThailandWhale shark season · 15 mrt – 31 mei (meestal)They turn up on the pinnacles for a few weeks in the spring, and again in a smaller run around September and October.77
- Côn Đảo 🇻🇳 VietnamCalm seas and clear water · 1 mrt – 30 jun (meestal)Between the two monsoons the crossing settles and the water over the reef clears.77
- Havelock Island 🇮🇳 IndiaDive and boat season · 15 okt – 15 meiThe dive centres on Beach No.76
- Placencia 🇧🇿 BelizeWhale sharks at Gladden Spit · 15 mrt – 15 jun (meestal)Cubera snapper spawn at Gladden Spit, 22 miles offshore, in the days after each full moon and whale sharks come up under them to feed.76
- Utila 🇭🇳 HondurasWhale shark season · 1 feb – 31 mei (meestal)Utila is one of the few places whale sharks are seen year-round, but February to May is when sightings are most reliable, peaking in March and April as plankton blooms draw them close to shore.76
- Port Blair 🇮🇳 IndiaSailing and dive season · 15 okt – 10 meiThe sea settles, the catamarans to Havelock and Neil run to timetable, and every dive centre in the territory is open.75
- Roatán 🇭🇳 HondurasWhale sharks in the Bay Islands · 20 feb – 30 apr (meestal)The reliable encounters are off Utila, an hour west by boat, where the shelf drops into deep water and the boils bring plankton up.73
- Praslin 🇸🇨 SeychellenThe calm between monsoons · 25 mrt – 10 mei (meestal)The turn between the two winds: barely any breeze, water like a pool and the visibility divers come for.71
- Tofo 🇲🇿 MozambiqueWhale shark season · 1 okt – 15 mrt (meestal)Whale sharks gather off the reef from October to March, most reliably in December and January when plankton blooms bring them close enough for the ocean-safari boats that launch straight off the beach at dawn.70
- Ko Lanta Yai 🇹🇭 ThailandHin Daeng and Hin Muang season · 1 nov – 30 apr (meestal)The deep pinnacles two hours south are the reason people come here to dive, and the boats only run in the settled months.70
- Vilankulo 🇲🇿 MozambiqueWhale sharks and mantas · 1 okt – 15 apr (meestal)Whale sharks and manta rays gather around the Bazaruto channel from October through to April, a window that overlaps with the archipelago's hottest and wettest months.70
- Khao Lak 🇹🇭 ThailandManta and whale shark season · 1 feb – 5 mei (meestal)The tail of the dive season at Richelieu Rock and Koh Bon, when the plankton is up and the big animals follow it.68
- Exmouth, Western Australia 🇦🇺 AustraliëNingaloo coral spawning · 5–31 mrt (meestal)The reef releases on the nights after the March full moon.68
- Mombassa 🇰🇪 KeniaWhale sharks off the coast · 1 dec – 31 mrt (meestal)Whale sharks move along the Kenyan coast through the northeast monsoon, and the boats that go looking for them run out of Diani and Watamu rather than Mombasa itself.67
- Malé 🇲🇻 MaledivenWhale sharks in South Ari · 1 jan – 31 dec (meestal)The juveniles off Maamigili are the one aggregation in the country that holds all year, which is why the day boats run out of Male in any month.66
- Victoria 🇸🇨 SeychellenInter-monsoon calms · 15 mrt – 15 mei (meestal)Between the two monsoons the wind drops and the water off Mahé goes flat and clear, which is when the granite dive sites and the boats to the outer islands are at their best.66
- Koh Chang 🇹🇭 ThailandWreck and reef diving season · 1 nov – 30 apr (meestal)The months the boats run south to the HTMS Chang wreck and the Rang islands, when visibility is worth the crossing.66
…en nog 4 in maart.
Duikseizoen in april
- Jamestown Sint-HelenaWhale shark season · 1 jan – 30 apr (meestal)Whale sharks aggregate off the island between January and April and boats go out from Jamestown to snorkel with them.87
- La Paz 🇲🇽 MexicoWhale shark season · 1 okt – 30 aprJuvenile whale sharks feed in the shallow end of the bay from October to April, inside a federal refuge that caps boats and group sizes.82
- The Bottom SabaDive season · 1 dec – 30 apr (meestal)The clearest water of the year in the Saba National Marine Park, with visibility past a hundred feet at sites like the Pinnacles, and the fewest afternoon squalls.82
- Byron Bay 🇦🇺 AustraliëLeopard sharks at Julian Rocks · 1 dec – 30 apr (meestal)Through the warm months leopard sharks gather on the sand at Julian Rocks, twenty minutes offshore, and swap places with the grey nurse sharks that hold there in winter.79
- Port Sudan 🇸🇩 SoedanRed Sea liveaboard season · 1 okt – 31 mei (meestal)The reefs off this coast — Sanganeb and the Sha'ab Rumi lagoon among them — are the reason anyone comes, and the boats run in the cooler half of the year when the water is clearest.78
- Tioman 🇲🇾 MaleisiëDive season · 1 mrt – 31 okt (meestal)The months the dive shops are open and the crossing from Mersing is routine.76
- Vilankulo 🇲🇿 MozambiqueWhale sharks and mantas · 1 okt – 15 apr (meestal)Whale sharks and manta rays gather around the Bazaruto channel from October through to April, a window that overlaps with the archipelago's hottest and wettest months.76
- Exmouth, Western Australia 🇦🇺 AustraliëWhale shark season · 10 mrt – 10 aug (meestal)Whale sharks feed along the outside of the reef from March into August, spotter plane overhead and a licensed boat below.75
- Utila 🇭🇳 HondurasWhale shark season · 1 feb – 31 mei (meestal)Utila is one of the few places whale sharks are seen year-round, but February to May is when sightings are most reliable, peaking in March and April as plankton blooms draw them close to shore.74
- Jeddah 🇸🇦 Saoedi-ArabiëRed Sea dive season · 1 okt – 31 mei (meestal)The reefs off Obhur creek and the wrecks south of the port are clearest and calmest from autumn through spring, before the summer water goes bathwater-warm and the visibility drops away.73
- Placencia 🇧🇿 BelizeWhale sharks at Gladden Spit · 15 mrt – 15 jun (meestal)Cubera snapper spawn at Gladden Spit, 22 miles offshore, in the days after each full moon and whale sharks come up under them to feed.73
- Kish 🇮🇷 IranDiving and beach season · 15 okt – 10 mei (meestal)The water is clearest and the air bearable in the cool half of the year, which is when the dive operators and the glass-bottom boats actually run properly.73
- Roatán 🇭🇳 HondurasWhale sharks in the Bay Islands · 20 feb – 30 apr (meestal)The reliable encounters are off Utila, an hour west by boat, where the shelf drops into deep water and the boils bring plankton up.71
- Côn Đảo 🇻🇳 VietnamCalm seas and clear water · 1 mrt – 30 jun (meestal)Between the two monsoons the crossing settles and the water over the reef clears.71
- Ko Tao 🇹🇭 ThailandWhale shark season · 15 mrt – 31 mei (meestal)They turn up on the pinnacles for a few weeks in the spring, and again in a smaller run around September and October.70
- Havelock Island 🇮🇳 IndiaDive and boat season · 15 okt – 15 meiThe dive centres on Beach No.70
- Fujairah 🇦🇪 Verenigde Arabische EmiratenGulf of Oman dive season · 15 okt – 15 mei (meestal)Snoopy Island and the Dibba wrecks are at their clearest in the cooler half of the year; summer plankton blooms cut the visibility badly.70
- Port Blair 🇮🇳 IndiaSailing and dive season · 15 okt – 10 meiThe sea settles, the catamarans to Havelock and Neil run to timetable, and every dive centre in the territory is open.68
- Praslin 🇸🇨 SeychellenThe calm between monsoons · 25 mrt – 10 mei (meestal)The turn between the two winds: barely any breeze, water like a pool and the visibility divers come for.67
- Malé 🇲🇻 MaledivenWhale sharks in South Ari · 1 jan – 31 dec (meestal)The juveniles off Maamigili are the one aggregation in the country that holds all year, which is why the day boats run out of Male in any month.64
- Beau Vallon 🇸🇨 SeychellenCalm seas between the monsoons · 1 apr – 15 mei (meestal)Between the northwest and southeast monsoons the wind drops and the bay often goes glassy, with the best visibility of the year for diving and snorkelling off the beach.63
- Victoria 🇸🇨 SeychellenInter-monsoon calms · 15 mrt – 15 mei (meestal)Between the two monsoons the wind drops and the water off Mahé goes flat and clear, which is when the granite dive sites and the boats to the outer islands are at their best.62
- Ko Lanta Yai 🇹🇭 ThailandHin Daeng and Hin Muang season · 1 nov – 30 apr (meestal)The deep pinnacles two hours south are the reason people come here to dive, and the boats only run in the settled months.61
- Koh Chang 🇹🇭 ThailandWreck and reef diving season · 1 nov – 30 apr (meestal)The months the boats run south to the HTMS Chang wreck and the Rang islands, when visibility is worth the crossing.61
- Khao Lak 🇹🇭 ThailandManta and whale shark season · 1 feb – 5 mei (meestal)The tail of the dive season at Richelieu Rock and Koh Bon, when the plankton is up and the big animals follow it.61
…en nog 4 in april.
Duikseizoen in mei
- Exmouth, Western Australia 🇦🇺 AustraliëWhale shark season · 10 mrt – 10 aug (meestal)Whale sharks feed along the outside of the reef from March into August, spotter plane overhead and a licensed boat below.84
- Douglas ManBasking shark season · 15 mei – 15 aug (meestal)Basking sharks feed close inshore on calm summer days, mostly along the south and south-west coast within easy reach of Douglas, with June and July the likeliest months.82
- Utila 🇭🇳 HondurasWhale shark season · 1 feb – 31 mei (meestal)Utila is one of the few places whale sharks are seen year-round, but February to May is when sightings are most reliable, peaking in March and April as plankton blooms draw them close to shore.74
- Nadi 🇫🇯 FijiManta season in the Yasawas · 1 mei – 31 okt (meestal)Reef mantas feed in the channel at Drawaqa through the dry half of the year and are snorkelled from a boat when the tide runs.73
- Tioman 🇲🇾 MaleisiëDive season · 1 mrt – 31 okt (meestal)The months the dive shops are open and the crossing from Mersing is routine.71
- Holbox 🇲🇽 MexicoWhale shark season · 15 mei – 17 sepThe season is fixed by permit, mid-May to mid-September, and boats leave before dawn for the feeding aggregation well offshore.69
- Isla Mujeres 🇲🇽 MexicoWhale shark season · 15 mei – 17 sepPermits run mid-May to mid-September for the aggregation twenty-odd miles north of the island.68
- Placencia 🇧🇿 BelizeWhale sharks at Gladden Spit · 15 mrt – 15 jun (meestal)Cubera snapper spawn at Gladden Spit, 22 miles offshore, in the days after each full moon and whale sharks come up under them to feed.66
- Jeddah 🇸🇦 Saoedi-ArabiëRed Sea dive season · 1 okt – 31 mei (meestal)The reefs off Obhur creek and the wrecks south of the port are clearest and calmest from autumn through spring, before the summer water goes bathwater-warm and the visibility drops away.65
- Dry Tortugas National Park 🇺🇸 Verenigde StatenCalm-water snorkelling season · 1 mei – 31 aug (meestal)The wind drops between the winter fronts and the peak of hurricane season, and the moat wall and the coaling docks are as clear as they get.63
- Ko Tao 🇹🇭 ThailandWhale shark season · 15 mrt – 31 mei (meestal)They turn up on the pinnacles for a few weeks in the spring, and again in a smaller run around September and October.63
- Port Sudan 🇸🇩 SoedanRed Sea liveaboard season · 1 okt – 31 mei (meestal)The reefs off this coast — Sanganeb and the Sha'ab Rumi lagoon among them — are the reason anyone comes, and the boats run in the cooler half of the year when the water is clearest.61
- Praslin 🇸🇨 SeychellenThe calm between monsoons · 25 mrt – 10 mei (meestal)The turn between the two winds: barely any breeze, water like a pool and the visibility divers come for.61
- Côn Đảo 🇻🇳 VietnamCalm seas and clear water · 1 mrt – 30 jun (meestal)Between the two monsoons the crossing settles and the water over the reef clears.59
- Kish 🇮🇷 IranDiving and beach season · 15 okt – 10 mei (meestal)The water is clearest and the air bearable in the cool half of the year, which is when the dive operators and the glass-bottom boats actually run properly.57
- Beau Vallon 🇸🇨 SeychellenCalm seas between the monsoons · 1 apr – 15 mei (meestal)Between the northwest and southeast monsoons the wind drops and the bay often goes glassy, with the best visibility of the year for diving and snorkelling off the beach.57
- Victoria 🇸🇨 SeychellenInter-monsoon calms · 15 mrt – 15 mei (meestal)Between the two monsoons the wind drops and the water off Mahé goes flat and clear, which is when the granite dive sites and the boats to the outer islands are at their best.56
- Honiara 🇸🇧 SalomonseilandenClearer water on Iron Bottom Sound · 1 apr – 30 nov (meestal)The drier half of the year settles the run-off and the wrecks off the Guadalcanal shore come back into view — the Bonegi ships are a walk-in from the road.51
- Malé 🇲🇻 MaledivenWhale sharks in South Ari · 1 jan – 31 dec (meestal)The juveniles off Maamigili are the one aggregation in the country that holds all year, which is why the day boats run out of Male in any month.50
- Havelock Island 🇮🇳 IndiaDive and boat season · 15 okt – 15 meiThe dive centres on Beach No.50
- Manado 🇮🇩 IndonesiëCalmest months for Bunaken · 1 mei – 30 sep (meestal)The drier stretch either side of midyear is when the crossing out to Bunaken is flattest and the wall dives are at their clearest.48
- Port Blair 🇮🇳 IndiaSailing and dive season · 15 okt – 10 meiThe sea settles, the catamarans to Havelock and Neil run to timetable, and every dive centre in the territory is open.46
- Khao Lak 🇹🇭 ThailandManta and whale shark season · 1 feb – 5 mei (meestal)The tail of the dive season at Richelieu Rock and Koh Bon, when the plankton is up and the big animals follow it.46
- Fujairah 🇦🇪 Verenigde Arabische EmiratenGulf of Oman dive season · 15 okt – 15 mei (meestal)Snoopy Island and the Dibba wrecks are at their clearest in the cooler half of the year; summer plankton blooms cut the visibility badly.44
Duikseizoen in juni
- Exmouth, Western Australia 🇦🇺 AustraliëWhale shark season · 10 mrt – 10 aug (meestal)Whale sharks feed along the outside of the reef from March into August, spotter plane overhead and a licensed boat below.86
- Douglas ManBasking shark season · 15 mei – 15 aug (meestal)Basking sharks feed close inshore on calm summer days, mostly along the south and south-west coast within easy reach of Douglas, with June and July the likeliest months.85
- Nadi 🇫🇯 FijiManta season in the Yasawas · 1 mei – 31 okt (meestal)Reef mantas feed in the channel at Drawaqa through the dry half of the year and are snorkelled from a boat when the tide runs.80
- Puerto Ayora 🇪🇨 EcuadorWhale sharks at Darwin and Wolf · 15 jun – 15 nov (meestal)Large females pass the far northern rocks through the cool season.80
- Tioman 🇲🇾 MaleisiëDive season · 1 mrt – 31 okt (meestal)The months the dive shops are open and the crossing from Mersing is routine.73
- Malé 🇲🇻 MaledivenWhale sharks in South Ari · 1 jan – 31 dec (meestal)The juveniles off Maamigili are the one aggregation in the country that holds all year, which is why the day boats run out of Male in any month.66
- George Town KaaimaneilandenSilversides in the swim-throughs · 15 jun – 15 sep (meestal)Baitballs of silversides pack the caverns at Devil's Grotto and Eden Rock, right off the George Town waterfront, with tarpon working through them.61
- Honiara 🇸🇧 SalomonseilandenClearer water on Iron Bottom Sound · 1 apr – 30 nov (meestal)The drier half of the year settles the run-off and the wrecks off the Guadalcanal shore come back into view — the Bonegi ships are a walk-in from the road.60
- Holbox 🇲🇽 MexicoWhale shark season · 15 mei – 17 sepThe season is fixed by permit, mid-May to mid-September, and boats leave before dawn for the feeding aggregation well offshore.60
- Cancún 🇲🇽 MexicoWhale sharks off Isla Mujeres · 15 jun – 15 sepHundreds of whale sharks gather to feed north of Isla Mujeres and the permitted swim season runs from mid-June to mid-September, July being the densest.57
- Ishigaki 🇯🇵 JapanManta season at Kabira · 1 jun – 30 nov (meestal)The cleaning stations off Kabira draw mantas through the second half of the year, with the best odds from August to October.57
- Côn Đảo 🇻🇳 VietnamCalm seas and clear water · 1 mrt – 30 jun (meestal)Between the two monsoons the crossing settles and the water over the reef clears.57
- Isla Mujeres 🇲🇽 MexicoWhale shark season · 15 mei – 17 sepPermits run mid-May to mid-September for the aggregation twenty-odd miles north of the island.57
- Dry Tortugas National Park 🇺🇸 Verenigde StatenCalm-water snorkelling season · 1 mei – 31 aug (meestal)The wind drops between the winter fronts and the peak of hurricane season, and the moat wall and the coaling docks are as clear as they get.56
- Placencia 🇧🇿 BelizeWhale sharks at Gladden Spit · 15 mrt – 15 jun (meestal)Cubera snapper spawn at Gladden Spit, 22 miles offshore, in the days after each full moon and whale sharks come up under them to feed.51
- Manado 🇮🇩 IndonesiëCalmest months for Bunaken · 1 mei – 30 sep (meestal)The drier stretch either side of midyear is when the crossing out to Bunaken is flattest and the wall dives are at their clearest.49
Duikseizoen in juli
- Exmouth, Western Australia 🇦🇺 AustraliëWhale shark season · 10 mrt – 10 aug (meestal)Whale sharks feed along the outside of the reef from March into August, spotter plane overhead and a licensed boat below.93
- Douglas ManBasking shark season · 15 mei – 15 aug (meestal)Basking sharks feed close inshore on calm summer days, mostly along the south and south-west coast within easy reach of Douglas, with June and July the likeliest months.88
- Nadi 🇫🇯 FijiManta season in the Yasawas · 1 mei – 31 okt (meestal)Reef mantas feed in the channel at Drawaqa through the dry half of the year and are snorkelled from a boat when the tide runs.84
- Puerto Ayora 🇪🇨 EcuadorWhale sharks at Darwin and Wolf · 15 jun – 15 nov (meestal)Large females pass the far northern rocks through the cool season.83
- Nusa Penida 🇮🇩 IndonesiëMola season · 1 jul – 31 okt (meestal)Cold upwelling in the Badung Strait brings oceanic sunfish up to the cleaning stations at Crystal Bay, with August and September the most reliable weeks.82
- Tioman 🇲🇾 MaleisiëDive season · 1 mrt – 31 okt (meestal)The months the dive shops are open and the crossing from Mersing is routine.77
- Cancún 🇲🇽 MexicoWhale sharks off Isla Mujeres · 15 jun – 15 sepHundreds of whale sharks gather to feed north of Isla Mujeres and the permitted swim season runs from mid-June to mid-September, July being the densest.65
- George Town KaaimaneilandenSilversides in the swim-throughs · 15 jun – 15 sep (meestal)Baitballs of silversides pack the caverns at Devil's Grotto and Eden Rock, right off the George Town waterfront, with tarpon working through them.65
- Holbox 🇲🇽 MexicoWhale shark season · 15 mei – 17 sepThe season is fixed by permit, mid-May to mid-September, and boats leave before dawn for the feeding aggregation well offshore.65
- Isla Mujeres 🇲🇽 MexicoWhale shark season · 15 mei – 17 sepPermits run mid-May to mid-September for the aggregation twenty-odd miles north of the island.65
- Malé 🇲🇻 MaledivenWhale sharks in South Ari · 1 jan – 31 dec (meestal)The juveniles off Maamigili are the one aggregation in the country that holds all year, which is why the day boats run out of Male in any month.61
- Dry Tortugas National Park 🇺🇸 Verenigde StatenCalm-water snorkelling season · 1 mei – 31 aug (meestal)The wind drops between the winter fronts and the peak of hurricane season, and the moat wall and the coaling docks are as clear as they get.59
- Honiara 🇸🇧 SalomonseilandenClearer water on Iron Bottom Sound · 1 apr – 30 nov (meestal)The drier half of the year settles the run-off and the wrecks off the Guadalcanal shore come back into view — the Bonegi ships are a walk-in from the road.57
- Ishigaki 🇯🇵 JapanManta season at Kabira · 1 jun – 30 nov (meestal)The cleaning stations off Kabira draw mantas through the second half of the year, with the best odds from August to October.55
- Manado 🇮🇩 IndonesiëCalmest months for Bunaken · 1 mei – 30 sep (meestal)The drier stretch either side of midyear is when the crossing out to Bunaken is flattest and the wall dives are at their clearest.51
Duikseizoen in augustus
- Exmouth, Western Australia 🇦🇺 AustraliëWhale shark season · 10 mrt – 10 aug (meestal)Whale sharks feed along the outside of the reef from March into August, spotter plane overhead and a licensed boat below.94
- Nkhata Bay 🇲🇼 MalawiBest diving visibility · 1 aug – 15 dec (meestal)The dry season brings the clearest water of the year, with visibility reaching up to thirty metres over the cichlid reefs.91
- Puerto Ayora 🇪🇨 EcuadorWhale sharks at Darwin and Wolf · 15 jun – 15 nov (meestal)Large females pass the far northern rocks through the cool season.87
- Douglas ManBasking shark season · 15 mei – 15 aug (meestal)Basking sharks feed close inshore on calm summer days, mostly along the south and south-west coast within easy reach of Douglas, with June and July the likeliest months.86
- Nusa Penida 🇮🇩 IndonesiëMola season · 1 jul – 31 okt (meestal)Cold upwelling in the Badung Strait brings oceanic sunfish up to the cleaning stations at Crystal Bay, with August and September the most reliable weeks.85
- Nadi 🇫🇯 FijiManta season in the Yasawas · 1 mei – 31 okt (meestal)Reef mantas feed in the channel at Drawaqa through the dry half of the year and are snorkelled from a boat when the tide runs.81
- Channel Islands National Park 🇺🇸 Verenigde StatenThe clear-water months · 15 aug – 31 okt (meestal)Late summer into October brings the calmest seas, the warmest water and visibility that can reach thirty metres in the kelp.78
- Tioman 🇲🇾 MaleisiëDive season · 1 mrt – 31 okt (meestal)The months the dive shops are open and the crossing from Mersing is routine.77
- Beau Vallon 🇸🇨 SeychellenWhale sharks off the bay · 1 aug – 31 okt (meestal)The monitoring programme runs from August to the end of October and the boats go out from the bay itself, spotter plane overhead.75
- Victoria 🇸🇨 SeychellenWhale sharks off Mahé · 15 aug – 15 nov (meestal)Whale sharks pass the granitic islands as the trades ease, with a spotter plane and a small licensed fleet working out of the west coast.74
- Roatán 🇭🇳 HondurasCoral spawning nights · 20 aug – 25 sep (meestal)The reef spawns on the nights after the late-summer full moons and the shops run boats out at nine or ten.64
- Malé 🇲🇻 MaledivenWhale sharks in South Ari · 1 jan – 31 dec (meestal)The juveniles off Maamigili are the one aggregation in the country that holds all year, which is why the day boats run out of Male in any month.63
- George Town KaaimaneilandenSilversides in the swim-throughs · 15 jun – 15 sep (meestal)Baitballs of silversides pack the caverns at Devil's Grotto and Eden Rock, right off the George Town waterfront, with tarpon working through them.63
- Holbox 🇲🇽 MexicoWhale shark season · 15 mei – 17 sepThe season is fixed by permit, mid-May to mid-September, and boats leave before dawn for the feeding aggregation well offshore.61
- Cancún 🇲🇽 MexicoWhale sharks off Isla Mujeres · 15 jun – 15 sepHundreds of whale sharks gather to feed north of Isla Mujeres and the permitted swim season runs from mid-June to mid-September, July being the densest.60
- Isla Mujeres 🇲🇽 MexicoWhale shark season · 15 mei – 17 sepPermits run mid-May to mid-September for the aggregation twenty-odd miles north of the island.60
- Manado 🇮🇩 IndonesiëCalmest months for Bunaken · 1 mei – 30 sep (meestal)The drier stretch either side of midyear is when the crossing out to Bunaken is flattest and the wall dives are at their clearest.58
- Honiara 🇸🇧 SalomonseilandenClearer water on Iron Bottom Sound · 1 apr – 30 nov (meestal)The drier half of the year settles the run-off and the wrecks off the Guadalcanal shore come back into view — the Bonegi ships are a walk-in from the road.57
- Dry Tortugas National Park 🇺🇸 Verenigde StatenCalm-water snorkelling season · 1 mei – 31 aug (meestal)The wind drops between the winter fronts and the peak of hurricane season, and the moat wall and the coaling docks are as clear as they get.53
- Ishigaki 🇯🇵 JapanManta season at Kabira · 1 jun – 30 nov (meestal)The cleaning stations off Kabira draw mantas through the second half of the year, with the best odds from August to October.51
Duikseizoen in september
- Puerto Ayora 🇪🇨 EcuadorWhale sharks at Darwin and Wolf · 15 jun – 15 nov (meestal)Large females pass the far northern rocks through the cool season.88
- Nkhata Bay 🇲🇼 MalawiBest diving visibility · 1 aug – 15 dec (meestal)The dry season brings the clearest water of the year, with visibility reaching up to thirty metres over the cichlid reefs.83
- Nusa Penida 🇮🇩 IndonesiëMola season · 1 jul – 31 okt (meestal)Cold upwelling in the Badung Strait brings oceanic sunfish up to the cleaning stations at Crystal Bay, with August and September the most reliable weeks.79
- Nadi 🇫🇯 FijiManta season in the Yasawas · 1 mei – 31 okt (meestal)Reef mantas feed in the channel at Drawaqa through the dry half of the year and are snorkelled from a boat when the tide runs.78
- Nosy Be 🇲🇬 MadagaskarWhale sharks · 1 sep – 15 dec (meestal)Whale sharks feed off the north of the island through the last quarter of the year, thickest in October and November.78
- Channel Islands National Park 🇺🇸 Verenigde StatenThe clear-water months · 15 aug – 31 okt (meestal)Late summer into October brings the calmest seas, the warmest water and visibility that can reach thirty metres in the kelp.77
- Tioman 🇲🇾 MaleisiëDive season · 1 mrt – 31 okt (meestal)The months the dive shops are open and the crossing from Mersing is routine.75
- Beau Vallon 🇸🇨 SeychellenWhale sharks off the bay · 1 aug – 31 okt (meestal)The monitoring programme runs from August to the end of October and the boats go out from the bay itself, spotter plane overhead.64
- Victoria 🇸🇨 SeychellenWhale sharks off Mahé · 15 aug – 15 nov (meestal)Whale sharks pass the granitic islands as the trades ease, with a spotter plane and a small licensed fleet working out of the west coast.63
- Roatán 🇭🇳 HondurasCoral spawning nights · 20 aug – 25 sep (meestal)The reef spawns on the nights after the late-summer full moons and the shops run boats out at nine or ten.62
- Malé 🇲🇻 MaledivenWhale sharks in South Ari · 1 jan – 31 dec (meestal)The juveniles off Maamigili are the one aggregation in the country that holds all year, which is why the day boats run out of Male in any month.61
- George Town KaaimaneilandenSilversides in the swim-throughs · 15 jun – 15 sep (meestal)Baitballs of silversides pack the caverns at Devil's Grotto and Eden Rock, right off the George Town waterfront, with tarpon working through them.60
- Holbox 🇲🇽 MexicoWhale shark season · 15 mei – 17 sepThe season is fixed by permit, mid-May to mid-September, and boats leave before dawn for the feeding aggregation well offshore.59
- Cancún 🇲🇽 MexicoWhale sharks off Isla Mujeres · 15 jun – 15 sepHundreds of whale sharks gather to feed north of Isla Mujeres and the permitted swim season runs from mid-June to mid-September, July being the densest.58
- Isla Mujeres 🇲🇽 MexicoWhale shark season · 15 mei – 17 sepPermits run mid-May to mid-September for the aggregation twenty-odd miles north of the island.58
- Honiara 🇸🇧 SalomonseilandenClearer water on Iron Bottom Sound · 1 apr – 30 nov (meestal)The drier half of the year settles the run-off and the wrecks off the Guadalcanal shore come back into view — the Bonegi ships are a walk-in from the road.55
- Manado 🇮🇩 IndonesiëCalmest months for Bunaken · 1 mei – 30 sep (meestal)The drier stretch either side of midyear is when the crossing out to Bunaken is flattest and the wall dives are at their clearest.55
- Ishigaki 🇯🇵 JapanManta season at Kabira · 1 jun – 30 nov (meestal)The cleaning stations off Kabira draw mantas through the second half of the year, with the best odds from August to October.50
Duikseizoen in oktober
- Puerto Ayora 🇪🇨 EcuadorWhale sharks at Darwin and Wolf · 15 jun – 15 nov (meestal)Large females pass the far northern rocks through the cool season.87
- Tofo 🇲🇿 MozambiqueWhale shark season · 1 okt – 15 mrt (meestal)Whale sharks gather off the reef from October to March, most reliably in December and January when plankton blooms bring them close enough for the ocean-safari boats that launch straight off the beach at dawn.80
- Vilankulo 🇲🇿 MozambiqueWhale sharks and mantas · 1 okt – 15 apr (meestal)Whale sharks and manta rays gather around the Bazaruto channel from October through to April, a window that overlaps with the archipelago's hottest and wettest months.80
- Cairns 🇦🇺 AustraliëCoral spawning · 25 okt – 10 dec (meestal)The corals release on a few nights after a full moon in late spring, inshore reefs usually ahead of the outer ones.78
- Channel Islands National Park 🇺🇸 Verenigde StatenThe clear-water months · 15 aug – 31 okt (meestal)Late summer into October brings the calmest seas, the warmest water and visibility that can reach thirty metres in the kelp.77
- Nkhata Bay 🇲🇼 MalawiBest diving visibility · 1 aug – 15 dec (meestal)The dry season brings the clearest water of the year, with visibility reaching up to thirty metres over the cichlid reefs.77
- Nadi 🇫🇯 FijiManta season in the Yasawas · 1 mei – 31 okt (meestal)Reef mantas feed in the channel at Drawaqa through the dry half of the year and are snorkelled from a boat when the tide runs.71
- Nusa Penida 🇮🇩 IndonesiëMola season · 1 jul – 31 okt (meestal)Cold upwelling in the Badung Strait brings oceanic sunfish up to the cleaning stations at Crystal Bay, with August and September the most reliable weeks.71
- Nosy Be 🇲🇬 MadagaskarWhale sharks · 1 sep – 15 dec (meestal)Whale sharks feed off the north of the island through the last quarter of the year, thickest in October and November.71
- Tioman 🇲🇾 MaleisiëDive season · 1 mrt – 31 okt (meestal)The months the dive shops are open and the crossing from Mersing is routine.70
- Beau Vallon 🇸🇨 SeychellenWhale sharks off the bay · 1 aug – 31 okt (meestal)The monitoring programme runs from August to the end of October and the boats go out from the bay itself, spotter plane overhead.70
- Victoria 🇸🇨 SeychellenWhale sharks off Mahé · 15 aug – 15 nov (meestal)Whale sharks pass the granitic islands as the trades ease, with a spotter plane and a small licensed fleet working out of the west coast.69
- Port Sudan 🇸🇩 SoedanRed Sea liveaboard season · 1 okt – 31 mei (meestal)The reefs off this coast — Sanganeb and the Sha'ab Rumi lagoon among them — are the reason anyone comes, and the boats run in the cooler half of the year when the water is clearest.66
- Jeddah 🇸🇦 Saoedi-ArabiëRed Sea dive season · 1 okt – 31 mei (meestal)The reefs off Obhur creek and the wrecks south of the port are clearest and calmest from autumn through spring, before the summer water goes bathwater-warm and the visibility drops away.64
- Fujairah 🇦🇪 Verenigde Arabische EmiratenGulf of Oman dive season · 15 okt – 15 mei (meestal)Snoopy Island and the Dibba wrecks are at their clearest in the cooler half of the year; summer plankton blooms cut the visibility badly.64
- Kish 🇮🇷 IranDiving and beach season · 15 okt – 10 mei (meestal)The water is clearest and the air bearable in the cool half of the year, which is when the dive operators and the glass-bottom boats actually run properly.61
- Malé 🇲🇻 MaledivenWhale sharks in South Ari · 1 jan – 31 dec (meestal)The juveniles off Maamigili are the one aggregation in the country that holds all year, which is why the day boats run out of Male in any month.59
- Ishigaki 🇯🇵 JapanManta season at Kabira · 1 jun – 30 nov (meestal)The cleaning stations off Kabira draw mantas through the second half of the year, with the best odds from August to October.59
- La Paz 🇲🇽 MexicoWhale shark season · 1 okt – 30 aprJuvenile whale sharks feed in the shallow end of the bay from October to April, inside a federal refuge that caps boats and group sizes.59
- Honiara 🇸🇧 SalomonseilandenClearer water on Iron Bottom Sound · 1 apr – 30 nov (meestal)The drier half of the year settles the run-off and the wrecks off the Guadalcanal shore come back into view — the Bonegi ships are a walk-in from the road.54
- Havelock Island 🇮🇳 IndiaDive and boat season · 15 okt – 15 meiThe dive centres on Beach No.54
- Port Blair 🇮🇳 IndiaSailing and dive season · 15 okt – 10 meiThe sea settles, the catamarans to Havelock and Neil run to timetable, and every dive centre in the territory is open.51
Duikseizoen in november
- Puerto Ayora 🇪🇨 EcuadorWhale sharks at Darwin and Wolf · 15 jun – 15 nov (meestal)Large females pass the far northern rocks through the cool season.86
- La Paz 🇲🇽 MexicoWhale shark season · 1 okt – 30 aprJuvenile whale sharks feed in the shallow end of the bay from October to April, inside a federal refuge that caps boats and group sizes.76
- Fujairah 🇦🇪 Verenigde Arabische EmiratenGulf of Oman dive season · 15 okt – 15 mei (meestal)Snoopy Island and the Dibba wrecks are at their clearest in the cooler half of the year; summer plankton blooms cut the visibility badly.76
- Kish 🇮🇷 IranDiving and beach season · 15 okt – 10 mei (meestal)The water is clearest and the air bearable in the cool half of the year, which is when the dive operators and the glass-bottom boats actually run properly.76
- Vilankulo 🇲🇿 MozambiqueWhale sharks and mantas · 1 okt – 15 apr (meestal)Whale sharks and manta rays gather around the Bazaruto channel from October through to April, a window that overlaps with the archipelago's hottest and wettest months.75
- Tofo 🇲🇿 MozambiqueWhale shark season · 1 okt – 15 mrt (meestal)Whale sharks gather off the reef from October to March, most reliably in December and January when plankton blooms bring them close enough for the ocean-safari boats that launch straight off the beach at dawn.74
- Cairns 🇦🇺 AustraliëCoral spawning · 25 okt – 10 dec (meestal)The corals release on a few nights after a full moon in late spring, inshore reefs usually ahead of the outer ones.71
- Jeddah 🇸🇦 Saoedi-ArabiëRed Sea dive season · 1 okt – 31 mei (meestal)The reefs off Obhur creek and the wrecks south of the port are clearest and calmest from autumn through spring, before the summer water goes bathwater-warm and the visibility drops away.71
- Nkhata Bay 🇲🇼 MalawiBest diving visibility · 1 aug – 15 dec (meestal)The dry season brings the clearest water of the year, with visibility reaching up to thirty metres over the cichlid reefs.70
- Port Sudan 🇸🇩 SoedanRed Sea liveaboard season · 1 okt – 31 mei (meestal)The reefs off this coast — Sanganeb and the Sha'ab Rumi lagoon among them — are the reason anyone comes, and the boats run in the cooler half of the year when the water is clearest.69
- Djibouti 🇩🇯 DjiboutiWhale sharks in the gulf · 1 nov – 15 feb (meestal)Plankton blooms in the Gulf of Tadjoura pull in a crowd of unusually young whale sharks, most of them only three or four metres long.69
- Ishigaki 🇯🇵 JapanManta season at Kabira · 1 jun – 30 nov (meestal)The cleaning stations off Kabira draw mantas through the second half of the year, with the best odds from August to October.66
- Koh Chang 🇹🇭 ThailandWreck and reef diving season · 1 nov – 30 apr (meestal)The months the boats run south to the HTMS Chang wreck and the Rang islands, when visibility is worth the crossing.65
- Havelock Island 🇮🇳 IndiaDive and boat season · 15 okt – 15 meiThe dive centres on Beach No.62
- Nosy Be 🇲🇬 MadagaskarWhale sharks · 1 sep – 15 dec (meestal)Whale sharks feed off the north of the island through the last quarter of the year, thickest in October and November.62
- Victoria 🇸🇨 SeychellenWhale sharks off Mahé · 15 aug – 15 nov (meestal)Whale sharks pass the granitic islands as the trades ease, with a spotter plane and a small licensed fleet working out of the west coast.61
- Port Blair 🇮🇳 IndiaSailing and dive season · 15 okt – 10 meiThe sea settles, the catamarans to Havelock and Neil run to timetable, and every dive centre in the territory is open.60
- Raja Ampat-eilanden 🇮🇩 IndonesiëManta season · 1 nov – 30 apr (meestal)Plankton in the straits brings reef mantas onto the cleaning stations around Dampier and Arborek, densest in the first months of the year.56
- Malé 🇲🇻 MaledivenWhale sharks in South Ari · 1 jan – 31 dec (meestal)The juveniles off Maamigili are the one aggregation in the country that holds all year, which is why the day boats run out of Male in any month.53
- Labuan Bajo 🇮🇩 IndonesiëManta season · 1 nov – 30 apr (meestal)Plankton in the channel brings reef mantas onto the cleaning stations at Karang Makassar and, further south, Manta Alley.50
- Honiara 🇸🇧 SalomonseilandenClearer water on Iron Bottom Sound · 1 apr – 30 nov (meestal)The drier half of the year settles the run-off and the wrecks off the Guadalcanal shore come back into view — the Bonegi ships are a walk-in from the road.49
- Ko Lanta Yai 🇹🇭 ThailandHin Daeng and Hin Muang season · 1 nov – 30 apr (meestal)The deep pinnacles two hours south are the reason people come here to dive, and the boats only run in the settled months.47
Duikseizoen in december
- La Paz 🇲🇽 MexicoWhale shark season · 1 okt – 30 aprJuvenile whale sharks feed in the shallow end of the bay from October to April, inside a federal refuge that caps boats and group sizes.88
- Fujairah 🇦🇪 Verenigde Arabische EmiratenGulf of Oman dive season · 15 okt – 15 mei (meestal)Snoopy Island and the Dibba wrecks are at their clearest in the cooler half of the year; summer plankton blooms cut the visibility badly.85
- Kish 🇮🇷 IranDiving and beach season · 15 okt – 10 mei (meestal)The water is clearest and the air bearable in the cool half of the year, which is when the dive operators and the glass-bottom boats actually run properly.85
- The Bottom SabaDive season · 1 dec – 30 apr (meestal)The clearest water of the year in the Saba National Marine Park, with visibility past a hundred feet at sites like the Pinnacles, and the fewest afternoon squalls.80
- Jeddah 🇸🇦 Saoedi-ArabiëRed Sea dive season · 1 okt – 31 mei (meestal)The reefs off Obhur creek and the wrecks south of the port are clearest and calmest from autumn through spring, before the summer water goes bathwater-warm and the visibility drops away.78
- Koh Chang 🇹🇭 ThailandWreck and reef diving season · 1 nov – 30 apr (meestal)The months the boats run south to the HTMS Chang wreck and the Rang islands, when visibility is worth the crossing.77
- Port Sudan 🇸🇩 SoedanRed Sea liveaboard season · 1 okt – 31 mei (meestal)The reefs off this coast — Sanganeb and the Sha'ab Rumi lagoon among them — are the reason anyone comes, and the boats run in the cooler half of the year when the water is clearest.76
- Djibouti 🇩🇯 DjiboutiWhale sharks in the gulf · 1 nov – 15 feb (meestal)Plankton blooms in the Gulf of Tadjoura pull in a crowd of unusually young whale sharks, most of them only three or four metres long.76
- Byron Bay 🇦🇺 AustraliëLeopard sharks at Julian Rocks · 1 dec – 30 apr (meestal)Through the warm months leopard sharks gather on the sand at Julian Rocks, twenty minutes offshore, and swap places with the grey nurse sharks that hold there in winter.74
- Mombassa 🇰🇪 KeniaWhale sharks off the coast · 1 dec – 31 mrt (meestal)Whale sharks move along the Kenyan coast through the northeast monsoon, and the boats that go looking for them run out of Diani and Watamu rather than Mombasa itself.68
- Tofo 🇲🇿 MozambiqueWhale shark season · 1 okt – 15 mrt (meestal)Whale sharks gather off the reef from October to March, most reliably in December and January when plankton blooms bring them close enough for the ocean-safari boats that launch straight off the beach at dawn.68
- Ko Lanta Yai 🇹🇭 ThailandHin Daeng and Hin Muang season · 1 nov – 30 apr (meestal)The deep pinnacles two hours south are the reason people come here to dive, and the boats only run in the settled months.66
- Havelock Island 🇮🇳 IndiaDive and boat season · 15 okt – 15 meiThe dive centres on Beach No.66
- Vilankulo 🇲🇿 MozambiqueWhale sharks and mantas · 1 okt – 15 apr (meestal)Whale sharks and manta rays gather around the Bazaruto channel from October through to April, a window that overlaps with the archipelago's hottest and wettest months.66
- Port Blair 🇮🇳 IndiaSailing and dive season · 15 okt – 10 meiThe sea settles, the catamarans to Havelock and Neil run to timetable, and every dive centre in the territory is open.64
- Nkhata Bay 🇲🇼 MalawiBest diving visibility · 1 aug – 15 dec (meestal)The dry season brings the clearest water of the year, with visibility reaching up to thirty metres over the cichlid reefs.59
- Malé 🇲🇻 MaledivenWhale sharks in South Ari · 1 jan – 31 dec (meestal)The juveniles off Maamigili are the one aggregation in the country that holds all year, which is why the day boats run out of Male in any month.58
- Cairns 🇦🇺 AustraliëCoral spawning · 25 okt – 10 dec (meestal)The corals release on a few nights after a full moon in late spring, inshore reefs usually ahead of the outer ones.54
- Nosy Be 🇲🇬 MadagaskarWhale sharks · 1 sep – 15 dec (meestal)Whale sharks feed off the north of the island through the last quarter of the year, thickest in October and November.54
- Raja Ampat-eilanden 🇮🇩 IndonesiëManta season · 1 nov – 30 apr (meestal)Plankton in the straits brings reef mantas onto the cleaning stations around Dampier and Arborek, densest in the first months of the year.53
- Chuuk 🇫🇲 MicronesiëCalm months on the wrecks · 1 dec – 30 apr (meestal)The north-east trades settle the lagoon from about December to April, which is when the crossings to the far wrecks are comfortable and the water inside the holds is at its clearest.48
- Labuan Bajo 🇮🇩 IndonesiëManta season · 1 nov – 30 apr (meestal)Plankton in the channel brings reef mantas onto the cleaning stations at Karang Makassar and, further south, Manta Alley.47