Bora Bora weather in August
August in Bora Bora: warm, a little rain, with clean air — one of the best months to visit.
Updated September 2026 · climate normals from ERA5 reanalysis
#1 of 12 months in Bora Bora · #323 of 1413 destinations to visit in August · comfort 88/100 (tier A)
- Days
- 23°C
- Nights
- 22°C
- Wet days
- 13
- Sun
- 10.3 h
- Humidity
- 77%
- Daylight
- 12 h

Traveller notes on Bora Bora in August
The Bora Bora forum's consensus puts August at the top of the dry season — cooler, less humid, and the best lagoon visibility of the year, at the cost of being the most expensive and most booked-out month to find a room.
Other months in Bora Bora
Regulars name a specific local wind, the Maramu, as the real trade-off of this drier season - less rain and humidity than the wetter months, but a real chance of the lagoon turning choppier than the postcard-still water many visitors expect, wind typically picking up more in the afternoon than the morning. Our row backs that warm, still-showery read, 24.1C over 22.8C nights, with 109.3mm of rain across 16.7 days and a real 27.7 kph wind. Regulars are consistent this counts as high season price-wise despite the wind risk, nights comfortable for sleeping without AC and days genuinely drier than the off-peak months. The sea stays a warm, swimmable 28C regardless of surface chop. The record: humidity 79 percent, 9.6 hours of sun and AQI 31.
October is the hinge of the year here and the board treats it as a good bet rather than a gamble: the wet season nominally starts now, but what falls are passing showers rather than all-day rain, and the humidity has not yet caught up to November's. Our row agrees with that shape - 116.9mm across 18.5 days, well above August's 63.4mm and far below December's 297.9mm - so this is the month the rain returns rather than the month it takes over. The air barely moves between 23.5C by day and 22.3C at night, and the lagoon sits at 27.3C. Wind runs 26.4 kph. Rates are shoulder season, and November is cheaper again but wetter. The record: humidity 80 percent, 11 hours of sun and AQI 31.
May is the shoulder here - April and May carry lovely weather at lower prices, before the June to October high season with its best odds and its highest rates. Regulars report the rain as a non-event: a quarter of an hour in the day and the rest overnight, or five minutes of drizzle across a week, always passing. That is the way to read our 94.8mm across 18.2 days, five millimetres apiece. They also note it is less humid than December to March, and our 80 percent is the mild end of tropical. Air and sea sit almost level at 24.7C and 28.9C, with nights barely cooler at 23.4C. The record: 9.8 hours of sun, a 25.3 kph wind and AQI 29.
July is Bora Bora's dry season and its windy one, and the wind is what regulars actually warn about. The trades come with the dry months, strong enough to make snorkelling awkward and to rattle the overwater bungalows at night; August and September bring the Maraamu from the south-east, stronger still. Our row's 29 kph is the standing figure. It is also cooler than the wet months - highs of 78 to 82F, nights of 65 to 70F, with overcast spells that feel genuinely cool once the wind is up. Dry here does not mean rainless: our row counts 16 precipitation days but only 68.6mm across them, which is the short passing shower they describe. July and early August are also the most expensive and the busiest. The record: 23.5C days, 22.3C nights and a 27.4C sea.
Year-round notes are on Bora Bora's overview. Add your own note from Bora Bora's card on the map.
Bora Bora climate normals — August
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Bora Bora in August
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
Peak crowdsDry season, Heiva i Bora Bora, school holidays in 2 of the markets that fill it(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Bora Bora's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Best weatherBora Bora's weather peaks July–September, best around August.
August includes Heiva i Bora Bora.
Best weatherFair weatherToughest weather
What's on in Bora Bora in August
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Season
Dry season
1 May – 31 Oct · usuallyCrowdedThe southern winter is the trade-wind half of the year: drier air, calmer lagoon, better underwater visibility, and the months the resorts charge the most for exactly that reason.
- Season
The maramu trade wind
1 Jun – 15 Sep · usuallyWind seasonRiskThe southeast maramu blows hardest through the dry months and chops the lagoon most afternoons. Good for the kitesurfers off Matira, less good for a flat-water paddle or a snorkel on the exposed side. Source ↗
- Festival
Heiva i Bora Bora
26 Jun – 2 AugMajor festivalCrowdedBook earlyWeeks of competitive dance, himene singing, outrigger racing and stone lifting on Vaitape's waterfront through July. The island's own event rather than a resort show, and the pensions fill for it. Source ↗
- Holiday
European summer peak
25 Jun – 31 AugSchool holidaysCrowdedBook earlyFrench and North American holidays land squarely on the driest months, so the overwater bungalows run full and at their dearest through July and August. A year ahead is normal here. Source ↗
- Nature
Humpback season
20 Jul – 20 Nov · usuallyWhale seasonHumpbacks come up from Antarctica to calve in the lee of the islands and stay outside the reef until November. Mid-August to late October is the reliable part, and the swims go from the boat, not the lagoon.
Nearby, and something's on
Within 300 km of Bora Bora — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Bora Bora?
Bora Bora in August — FAQ
- Is August a good time to visit Bora Bora?
- August in Bora Bora: warm, a little rain, with clean air — one of the best months to visit. It ranks #1 of 12 months for Bora Bora on SeasonMap's comfort score (88/100).
- What is the weather like in Bora Bora in August?
- In August, Bora Bora averages a daily high of 23.2°C and a low of 22.1°C, with about 63.4 mm of rain over roughly 12.5 rainy days.
- What is the air quality in Bora Bora in August?
- Bora Bora has a mean US Air Quality Index of about 34 in August.
Within 300 km: Moorea's Humpback whale season on 20 Jul – 20 Nov, and Papeete's Humpback whale season on 20 Jul – 20 Nov.