French Polynesia · South Pacific
Bora Bora
Sea
26.3°C79.3°F
Air
UV
Beach day
⁦23–28°C⁩

Last updated ·

Today, September 13, the sea temperature at Bora Bora is 26.3 °C (79 °F). That is 0.6 °C cooler than the usual 26.9 °C in September. Comfortable for swimming year-round.

Climate · monthly averages

Sea temperature by month

5-year averages (2021–2025). Min/Max are typical daily lows and highs, not record extremes.

Warmest in March (29.2°C). Coldest in September (26.9°C). Comfortable for swimming year-round.

5-year averages (2021–2025). Min/Max are typical daily lows and highs, not record extremes.
MonthSea · MinSea · AvgSea · MaxAir · MinAir · AvgAir · Max
January28.1°C28.5°C29.0°C26.4°C26.6°C26.6°C
February28.2°C28.8°C29.2°C26.5°C26.8°C27.0°C
March28.7°C29.2°C29.8°C26.8°C27.2°C27.4°C
April28.7°C29.1°C29.6°C26.6°C27.0°C27.1°C
May28.4°C28.7°C28.9°C26.6°C26.9°C27.1°C
June27.8°C28.0°C28.2°C26.0°C26.2°C26.2°C
July27.1°C27.4°C27.5°C25.4°C25.6°C25.7°C
August26.6°C27.0°C27.3°C25.1°C25.3°C25.4°C
September26.5°C26.9°C27.4°C25.0°C25.3°C25.4°C
October26.9°C27.2°C27.4°C25.3°C25.6°C25.7°C
November27.4°C27.6°C27.9°C25.5°C25.7°C25.8°C
December27.9°C28.2°C28.4°C26.1°C26.4°C26.5°C

About Bora Bora

The South Pacific's most recognisable silhouette belongs to Mount Otemanu, the 727-metre basalt remnant of an extinct volcano at the heart of Bora Bora, encircled by a barrier reef and a turquoise lagoon. Matira Beach unspools two kilometres of fine white sand along the southern tip, with a shallow gradient that reaches waist-deep water dozens of metres offshore. The dry season runs from April to October, with sea temperatures sitting between 27 and 29 °C81 and 84 °F year-round, peaking in March and April.

Frequently asked questions

Today, September 13, the sea at Bora Bora is 26.3 °C (79 °F)79 °F (26.3 °C) – ideal for swimming for most people. The usual September average is 26.9 °C80 °F.

No single number works for everyone, so the scale on this page is only a guide to how the water feels: below 13 °C55 °F icy, 13–18 °C55–64 °F cold, 18–23 °C64–73 °F refreshing, 23–28 °C73–82 °F pleasantly warm and above 28 °C82 °F like a bath. Right now the sea at Bora Bora is 26.3 °C79 °F.

Yes – the sea at Bora Bora (South Pacific, French Polynesia) stays swimmable all year. September is the coolest month, averaging 26.9 °C80 °F – ideal for swimming for most people; the warmest is March at 29.2 °C85 °F.

In March, at 29.2 °C85 °F on average. The coolest month is September at 26.9 °C80 °F – still above the 18 °C64 °F swimming line, so there is no off-season for swimming.