Bora Bora weather in May

May in Bora Bora: warm, rainy, with clean air — fine if you can take 18 rainy days.

Updated September 2026 · climate normals from ERA5 reanalysis

Bora Bora🇵🇫 French Polynesia · South Pacific · Island84
  1. 65Jan
  2. 68Feb
  3. 80Mar
  4. 78Apr
  5. 84May
  6. 81Jun
  7. 86Jul
  8. 88Aug
  9. 87Sep
  10. 83Oct
  11. 76Nov
  12. 68Dec

#4 of 12 months in Bora Bora · #491 of 1413 destinations to visit in May · comfort 84/100 (tier A)

Days
25°C
Nights
23°C
Wet days
18
Sun
9.8 h
Humidity
80%
Daylight
11 h
Bora Bora, French Polynesia
Photo: SlimMars 13 · Pexels

Traveller notes on Bora Bora in May

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.
MostOfItFallsAtNight · May · 1 month ago · Read more on Tripadvisor ↗

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.
MaramuWindSeasonTradesRainForChop · June · 1 month ago · Read more on Tripadvisor ↗
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.
ShoulderMonthNotYetNovember · October · 1 month ago · Read more on Tripadvisor ↗
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.
TheBungalowsRattle · July · 1 month ago · Read more on Tripadvisor ↗
September is a shoulder month on the Bora Bora forum, and regulars are careful not to oversell it: it is usually beautiful, the dry season is never a sure thing, and this is the tropics, so sun, showers or a downpour are all on the table. Rain when it comes is described as Caribbean-style afternoon showers rather than all-day grey. The wind question gets the same answer - June to August is the windy stretch, September may bring the southeasterly mara'amu or may not. The compensation posters point to is whale season. The record matches the hedging: 14.5 precipitation days carrying only 73.3mm between them, 23.2C days and 22.1C nights, humidity near 79 percent, 10.8 hours of sun, a 26.6C lagoon and a 28 kph breeze.
MaraamuShoulder · September · 1 month ago · Read more on Tripadvisor ↗

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 — May

Daytime high25°C / 76°F🌤 warm
Nighttime low23°C / 74°F
Feels like (high)27°C / 81°F
Sea temperature29°C / 84°F♨️ bath-warm
Rainfall95 mm / 3.7 in🌧 rainy
Rainy days18 days
Humidity80%💦 very humid
Dew point20°C / 69°F
Sunshine9.8 h/day
Daylight11.3 h
Wind25 km/h / 16 mph
Air quality (US AQI)29🍃 good

Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.

Crowds in Bora Bora in May

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 crowdstravelers describe it as peak season, Dry season

Sourced from traveler notes: “…lovely weather at lower prices, before the June to October high season with its best odds and its highest rates. Regulars report t…” — MostOfItFallsAtNight

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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).

Fair weatherBora Bora's weather peaks July–September, best around August.

JFMAMJJASOND

Best weatherFair weatherToughest weather

What's on in Bora Bora in May

Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.

  • Season

    Dry season

    1 May – 31 Oct · usuallyCrowded

    The 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.

What's on around the world in May →

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?

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Bora Bora in May — FAQ

Is May a good time to visit Bora Bora?
May in Bora Bora: warm, rainy, with clean air — fine if you can take 18 rainy days. It ranks #4 of 12 months for Bora Bora on SeasonMap's comfort score (84/100).
What is the weather like in Bora Bora in May?
In May, Bora Bora averages a daily high of 24.7°C and a low of 23.4°C, with about 94.8 mm of rain over roughly 18.2 rainy days.
What is the air quality in Bora Bora in May?
Bora Bora has a mean US Air Quality Index of about 29 in May.

Within 300 km: Moorea's Austral winter, the dry half on 1 May – 31 Oct, and Papeete's Austral winter, the dry half on 1 May – 31 Oct.