Saison des glissements de terrain, mois par mois dans le monde
Les routes de montagne glissent et restent fermées plusieurs jours ; le problème, c’est d’y aller, pas d’y être.
Cette page est un avertissement, pas une recommandation. Saison des glissements de terrain concerne 24 destinations sur SeasonMap ; les mois ci-dessous sont ceux où la période de risque est ouverte — la plupart des semaines passent sans histoire, et le score affiché à côté de chaque lieu reste le score climatique habituel, risque compris.
Quand ça a lieu
Saison des glissements de terrain en janvier
- San Salvador de Jujuy 🇦🇷 ArgentineSummer landslides in the Quebrada · 1 janv. – 31 mars (en général)Summer storms send mud and rockslides across Ruta 9 near Volcan and Tunalito and Ruta 52 at the Cuesta de Lipan, cutting access to Purmamarca, Tilcara and Humahuaca for hours or days.72
- Big Sur 🇺🇸 États-UnisHighway 1 slide season · 1 déc. – 15 avr. (en général)Winter storms put rock and mud onto the coast road most years, and a bad slide can shut a section for months or seasons.68
- Ouro Preto 🇧🇷 BrésilRainy season landslides · 1 déc. – 31 mars (en général)Heavy summer rain on the steep hillsides brings landslides; in January 2022 one on Morro da Forca brought down historic mansions.68
- Tilcara 🇦🇷 ArgentineSummer mudslides on the RN 9 · 1 janv. – 31 mars (en général)Summer storms send mud and rock down the side gullies onto the valley road, locally called volcanes, cutting the RN 9 at Volcán or Tumbaya for hours or days.64
- Blantyre 🇲🇼 MalawiCyclone rains and landslides · 1 janv. – 31 mars (en général)Late-season tropical storms can dump days of rain on the southern highlands; in March 2023 Cyclone Freddy set off flash floods and mudslides below Soche Hill that killed hundreds in the city.57
Saison des glissements de terrain en février
- San Salvador de Jujuy 🇦🇷 ArgentineSummer landslides in the Quebrada · 1 janv. – 31 mars (en général)Summer storms send mud and rockslides across Ruta 9 near Volcan and Tunalito and Ruta 52 at the Cuesta de Lipan, cutting access to Purmamarca, Tilcara and Humahuaca for hours or days.76
- Big Sur 🇺🇸 États-UnisHighway 1 slide season · 1 déc. – 15 avr. (en général)Winter storms put rock and mud onto the coast road most years, and a bad slide can shut a section for months or seasons.75
- Ouro Preto 🇧🇷 BrésilRainy season landslides · 1 déc. – 31 mars (en général)Heavy summer rain on the steep hillsides brings landslides; in January 2022 one on Morro da Forca brought down historic mansions.72
- Blantyre 🇲🇼 MalawiCyclone rains and landslides · 1 janv. – 31 mars (en général)Late-season tropical storms can dump days of rain on the southern highlands; in March 2023 Cyclone Freddy set off flash floods and mudslides below Soche Hill that killed hundreds in the city.67
- Tilcara 🇦🇷 ArgentineSummer mudslides on the RN 9 · 1 janv. – 31 mars (en général)Summer storms send mud and rock down the side gullies onto the valley road, locally called volcanes, cutting the RN 9 at Volcán or Tumbaya for hours or days.66
Saison des glissements de terrain en mars
- Ouro Preto 🇧🇷 BrésilRainy season landslides · 1 déc. – 31 mars (en général)Heavy summer rain on the steep hillsides brings landslides; in January 2022 one on Morro da Forca brought down historic mansions.80
- Big Sur 🇺🇸 États-UnisHighway 1 slide season · 1 déc. – 15 avr. (en général)Winter storms put rock and mud onto the coast road most years, and a bad slide can shut a section for months or seasons.75
- San Salvador de Jujuy 🇦🇷 ArgentineSummer landslides in the Quebrada · 1 janv. – 31 mars (en général)Summer storms send mud and rockslides across Ruta 9 near Volcan and Tunalito and Ruta 52 at the Cuesta de Lipan, cutting access to Purmamarca, Tilcara and Humahuaca for hours or days.74
- Blantyre 🇲🇼 MalawiCyclone rains and landslides · 1 janv. – 31 mars (en général)Late-season tropical storms can dump days of rain on the southern highlands; in March 2023 Cyclone Freddy set off flash floods and mudslides below Soche Hill that killed hundreds in the city.68
- Tilcara 🇦🇷 ArgentineSummer mudslides on the RN 9 · 1 janv. – 31 mars (en général)Summer storms send mud and rock down the side gullies onto the valley road, locally called volcanes, cutting the RN 9 at Volcán or Tumbaya for hours or days.63
Saison des glissements de terrain en avril
Saison des glissements de terrain en juin
- Kasol 🇮🇳 IndeMonsoon in the Parvati Valley · 25 juin – 10 sept. (en général)The single road up from Bhuntar is an active landslide stretch once the rain sets in and gets blocked for days with no detour.80
- Shangri-La 🇨🇳 ChineRainy season · 15 juin – 20 sept. (en général)The wet months are when the mountain roads fail.74
- Darjeeling 🇮🇳 IndeMonsoon and landslide season · 15 juin – 20 sept. (en général)The eastern Himalaya takes some of the heaviest rain in India, and slips regularly close NH-10 up from Siliguri and the Rohini road, sometimes for days.61
- Gangtok 🇮🇳 IndeLandslides on NH-10 · 15 juin – 15 sept. (en général)The road up from Siliguri along the Teesta is the only practical way in and it loses sections every season, sometimes for days.61
- Munnar 🇮🇳 IndeGhat road landslides · 1 juin – 31 août (en général)Idukki takes the full south-west monsoon and the ghat roads up from Kochi lose sections most seasons.59
- Gorkha 🇳🇵 NépalMonsoon landslides on the Manaslu road · 10 juin – 15 sept. (en général)Monsoon rain loosens the slopes above the Budhi Gandaki gorge, and slides cut both the dirt road beyond Arughat and the trail sections carved into the cliffs.59
- Madikeri 🇮🇳 IndeMonsoon landslides on the ghat roads · 10 juin – 31 août (en général)Heavy rain brings landslides onto NH 275 through the Sampaje ghat; the district bans heavy vehicles for weeks and has closed the ghat at night, so allow for detours and avoid driving after dark.56
- Lac Atitlán 🇬🇹 GuatemalaLandslide season · 1 juin – 31 oct. (en général)Heavy rainy-season downpours bring mudslides off the volcanoes around the lake, and the steep road down from Solola to Panajachel has been cut for weeks at a time.55
- Louang Namtha 🇱🇦 LaosRainy-season mud and landslides · 1 juin – 30 sept. (en général)Nam Ha treks still run, but trails turn to slick mud with leeches, and guides call off days they judge unsafe.51
- Katmandou 🇳🇵 NépalLandslide season on the hill roads · 15 juin – 15 sept. (en général)The monsoon closes hill roads for days at a time and delays the mountain flights that everything else depends on.49
- Chittagong 🇧🇩 BangladeshMonsoon landslides and waterlogging · 1 juin – 30 sept. (en général)Heavy monsoon bursts bring deadly landslides on the cut hillsides around the city and knee-deep water in Agrabad and other low districts.35
Saison des glissements de terrain en juillet
- Lac Atitlán 🇬🇹 GuatemalaLandslide season · 1 juin – 31 oct. (en général)Heavy rainy-season downpours bring mudslides off the volcanoes around the lake, and the steep road down from Solola to Panajachel has been cut for weeks at a time.73
- Shangri-La 🇨🇳 ChineRainy season · 15 juin – 20 sept. (en général)The wet months are when the mountain roads fail.65
- Shimla 🇮🇳 IndeMonsoon slips on the hill · 1 juil. – 15 sept. (en général)The slopes below the town give way most seasons and the Kalka road loses sections with them; the bad years have taken buildings down.62
- Nainital 🇮🇳 IndeLandslides on the hill roads · 1 juil. – 15 sept. (en général)The roads up from Haldwani and Kaladhungi lose sections in the worst weeks, and the slope above the lake has a long history of coming down.61
- Mussoorie 🇮🇳 IndeLandslides on the Dehradun road · 1 juil. – 15 sept. (en général)The road up loses sections in the heaviest weeks and the slopes above Kempty come down with them.58
- Kasol 🇮🇳 IndeMonsoon in the Parvati Valley · 25 juin – 10 sept. (en général)The single road up from Bhuntar is an active landslide stretch once the rain sets in and gets blocked for days with no detour.57
- Darjeeling 🇮🇳 IndeMonsoon and landslide season · 15 juin – 20 sept. (en général)The eastern Himalaya takes some of the heaviest rain in India, and slips regularly close NH-10 up from Siliguri and the Rohini road, sometimes for days.56
- Munnar 🇮🇳 IndeGhat road landslides · 1 juin – 31 août (en général)Idukki takes the full south-west monsoon and the ghat roads up from Kochi lose sections most seasons.56
- Gangtok 🇮🇳 IndeLandslides on NH-10 · 15 juin – 15 sept. (en général)The road up from Siliguri along the Teesta is the only practical way in and it loses sections every season, sometimes for days.55
- Madikeri 🇮🇳 IndeMonsoon landslides on the ghat roads · 10 juin – 31 août (en général)Heavy rain brings landslides onto NH 275 through the Sampaje ghat; the district bans heavy vehicles for weeks and has closed the ghat at night, so allow for detours and avoid driving after dark.53
- Gorkha 🇳🇵 NépalMonsoon landslides on the Manaslu road · 10 juin – 15 sept. (en général)Monsoon rain loosens the slopes above the Budhi Gandaki gorge, and slides cut both the dirt road beyond Arughat and the trail sections carved into the cliffs.52
- Auli 🇮🇳 IndeLandslides on the road in · 1 juil. – 15 sept. (en général)The highway up from Rishikesh is the only way in and it loses sections most weeks in these months.50
- Manali 🇮🇳 IndeLandslides on the valley road · 1 juil. – 15 sept. (en général)The Beas runs high and the highway down to Kullu and Mandi loses sections most seasons, sometimes for days.48
- Katmandou 🇳🇵 NépalLandslide season on the hill roads · 15 juin – 15 sept. (en général)The monsoon closes hill roads for days at a time and delays the mountain flights that everything else depends on.43
- Louang Namtha 🇱🇦 LaosRainy-season mud and landslides · 1 juin – 30 sept. (en général)Nam Ha treks still run, but trails turn to slick mud with leeches, and guides call off days they judge unsafe.43
- Chittagong 🇧🇩 BangladeshMonsoon landslides and waterlogging · 1 juin – 30 sept. (en général)Heavy monsoon bursts bring deadly landslides on the cut hillsides around the city and knee-deep water in Agrabad and other low districts.38
- Rishikesh 🇮🇳 IndeMonsoon and landslide season · 1 juil. – 15 sept. (en général)The hill roads north towards Devprayag and Uttarkashi slip and close in the heavy weeks, and the river runs brown and high past the ghats.37
Saison des glissements de terrain en août
- Shangri-La 🇨🇳 ChineRainy season · 15 juin – 20 sept. (en général)The wet months are when the mountain roads fail.67
- Lac Atitlán 🇬🇹 GuatemalaLandslide season · 1 juin – 31 oct. (en général)Heavy rainy-season downpours bring mudslides off the volcanoes around the lake, and the steep road down from Solola to Panajachel has been cut for weeks at a time.65
- Shimla 🇮🇳 IndeMonsoon slips on the hill · 1 juil. – 15 sept. (en général)The slopes below the town give way most seasons and the Kalka road loses sections with them; the bad years have taken buildings down.63
- Munnar 🇮🇳 IndeGhat road landslides · 1 juin – 31 août (en général)Idukki takes the full south-west monsoon and the ghat roads up from Kochi lose sections most seasons.60
- Nainital 🇮🇳 IndeLandslides on the hill roads · 1 juil. – 15 sept. (en général)The roads up from Haldwani and Kaladhungi lose sections in the worst weeks, and the slope above the lake has a long history of coming down.60
- Madikeri 🇮🇳 IndeMonsoon landslides on the ghat roads · 10 juin – 31 août (en général)Heavy rain brings landslides onto NH 275 through the Sampaje ghat; the district bans heavy vehicles for weeks and has closed the ghat at night, so allow for detours and avoid driving after dark.59
- Darjeeling 🇮🇳 IndeMonsoon and landslide season · 15 juin – 20 sept. (en général)The eastern Himalaya takes some of the heaviest rain in India, and slips regularly close NH-10 up from Siliguri and the Rohini road, sometimes for days.58
- Gangtok 🇮🇳 IndeLandslides on NH-10 · 15 juin – 15 sept. (en général)The road up from Siliguri along the Teesta is the only practical way in and it loses sections every season, sometimes for days.58
- Mussoorie 🇮🇳 IndeLandslides on the Dehradun road · 1 juil. – 15 sept. (en général)The road up loses sections in the heaviest weeks and the slopes above Kempty come down with them.57
- Kasol 🇮🇳 IndeMonsoon in the Parvati Valley · 25 juin – 10 sept. (en général)The single road up from Bhuntar is an active landslide stretch once the rain sets in and gets blocked for days with no detour.56
- Gorkha 🇳🇵 NépalMonsoon landslides on the Manaslu road · 10 juin – 15 sept. (en général)Monsoon rain loosens the slopes above the Budhi Gandaki gorge, and slides cut both the dirt road beyond Arughat and the trail sections carved into the cliffs.53
- Auli 🇮🇳 IndeLandslides on the road in · 1 juil. – 15 sept. (en général)The highway up from Rishikesh is the only way in and it loses sections most weeks in these months.51
- Manali 🇮🇳 IndeLandslides on the valley road · 1 juil. – 15 sept. (en général)The Beas runs high and the highway down to Kullu and Mandi loses sections most seasons, sometimes for days.50
- Katmandou 🇳🇵 NépalLandslide season on the hill roads · 15 juin – 15 sept. (en général)The monsoon closes hill roads for days at a time and delays the mountain flights that everything else depends on.45
- Rishikesh 🇮🇳 IndeMonsoon and landslide season · 1 juil. – 15 sept. (en général)The hill roads north towards Devprayag and Uttarkashi slip and close in the heavy weeks, and the river runs brown and high past the ghats.39
- Louang Namtha 🇱🇦 LaosRainy-season mud and landslides · 1 juin – 30 sept. (en général)Nam Ha treks still run, but trails turn to slick mud with leeches, and guides call off days they judge unsafe.39
- Chittagong 🇧🇩 BangladeshMonsoon landslides and waterlogging · 1 juin – 30 sept. (en général)Heavy monsoon bursts bring deadly landslides on the cut hillsides around the city and knee-deep water in Agrabad and other low districts.39
Saison des glissements de terrain en septembre
- Shimla 🇮🇳 IndeMonsoon slips on the hill · 1 juil. – 15 sept. (en général)The slopes below the town give way most seasons and the Kalka road loses sections with them; the bad years have taken buildings down.76
- Kasol 🇮🇳 IndeMonsoon in the Parvati Valley · 25 juin – 10 sept. (en général)The single road up from Bhuntar is an active landslide stretch once the rain sets in and gets blocked for days with no detour.72
- Shangri-La 🇨🇳 ChineRainy season · 15 juin – 20 sept. (en général)The wet months are when the mountain roads fail.72
- Nainital 🇮🇳 IndeLandslides on the hill roads · 1 juil. – 15 sept. (en général)The roads up from Haldwani and Kaladhungi lose sections in the worst weeks, and the slope above the lake has a long history of coming down.69
- Mussoorie 🇮🇳 IndeLandslides on the Dehradun road · 1 juil. – 15 sept. (en général)The road up loses sections in the heaviest weeks and the slopes above Kempty come down with them.69
- Darjeeling 🇮🇳 IndeMonsoon and landslide season · 15 juin – 20 sept. (en général)The eastern Himalaya takes some of the heaviest rain in India, and slips regularly close NH-10 up from Siliguri and the Rohini road, sometimes for days.60
- Gangtok 🇮🇳 IndeLandslides on NH-10 · 15 juin – 15 sept. (en général)The road up from Siliguri along the Teesta is the only practical way in and it loses sections every season, sometimes for days.60
- Auli 🇮🇳 IndeLandslides on the road in · 1 juil. – 15 sept. (en général)The highway up from Rishikesh is the only way in and it loses sections most weeks in these months.58
- Manali 🇮🇳 IndeLandslides on the valley road · 1 juil. – 15 sept. (en général)The Beas runs high and the highway down to Kullu and Mandi loses sections most seasons, sometimes for days.56
- Lac Atitlán 🇬🇹 GuatemalaLandslide season · 1 juin – 31 oct. (en général)Heavy rainy-season downpours bring mudslides off the volcanoes around the lake, and the steep road down from Solola to Panajachel has been cut for weeks at a time.56
- Gorkha 🇳🇵 NépalMonsoon landslides on the Manaslu road · 10 juin – 15 sept. (en général)Monsoon rain loosens the slopes above the Budhi Gandaki gorge, and slides cut both the dirt road beyond Arughat and the trail sections carved into the cliffs.56
- Rishikesh 🇮🇳 IndeMonsoon and landslide season · 1 juil. – 15 sept. (en général)The hill roads north towards Devprayag and Uttarkashi slip and close in the heavy weeks, and the river runs brown and high past the ghats.54
- Katmandou 🇳🇵 NépalLandslide season on the hill roads · 15 juin – 15 sept. (en général)The monsoon closes hill roads for days at a time and delays the mountain flights that everything else depends on.50
- Louang Namtha 🇱🇦 LaosRainy-season mud and landslides · 1 juin – 30 sept. (en général)Nam Ha treks still run, but trails turn to slick mud with leeches, and guides call off days they judge unsafe.50
- Chittagong 🇧🇩 BangladeshMonsoon landslides and waterlogging · 1 juin – 30 sept. (en général)Heavy monsoon bursts bring deadly landslides on the cut hillsides around the city and knee-deep water in Agrabad and other low districts.42
Saison des glissements de terrain en octobre
- Lac Atitlán 🇬🇹 GuatemalaLandslide season · 1 juin – 31 oct. (en général)Heavy rainy-season downpours bring mudslides off the volcanoes around the lake, and the steep road down from Solola to Panajachel has been cut for weeks at a time.61
- Cameron Highlands 🇲🇾 MalaisieWettest weeks and landslide risk · 1 oct. – 20 déc. (en général)Sustained afternoon rain saturates slopes that have been cleared for farming, and the access roads close for clearance more years than not.60
- Bucaramanga 🇨🇴 ColombieSecond-rains landslides · 1 oct. – 30 nov. (en général)October and November bring the year's second and heavier rains, and landslides regularly close or restrict the mountain roads to Bogota, Pamplona and the Magdalena valley.55
Saison des glissements de terrain en novembre
- Cameron Highlands 🇲🇾 MalaisieWettest weeks and landslide risk · 1 oct. – 20 déc. (en général)Sustained afternoon rain saturates slopes that have been cleared for farming, and the access roads close for clearance more years than not.57
- Bucaramanga 🇨🇴 ColombieSecond-rains landslides · 1 oct. – 30 nov. (en général)October and November bring the year's second and heavier rains, and landslides regularly close or restrict the mountain roads to Bogota, Pamplona and the Magdalena valley.56
Saison des glissements de terrain en décembre
- Big Sur 🇺🇸 États-UnisHighway 1 slide season · 1 déc. – 15 avr. (en général)Winter storms put rock and mud onto the coast road most years, and a bad slide can shut a section for months or seasons.70
- Ouro Preto 🇧🇷 BrésilRainy season landslides · 1 déc. – 31 mars (en général)Heavy summer rain on the steep hillsides brings landslides; in January 2022 one on Morro da Forca brought down historic mansions.69
- Cameron Highlands 🇲🇾 MalaisieWettest weeks and landslide risk · 1 oct. – 20 déc. (en général)Sustained afternoon rain saturates slopes that have been cleared for farming, and the access roads close for clearance more years than not.62