September · French Polynesia
Best time to visit Bora Bora in September Weather, crowds & prices
Weather in Bora Bora in September
Average temperature 22°C, 105 mm of rain, about 28 days with 6+ hours of sunshine and 77% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
September score
8.0/10
Ranked #5 of 12 months
- Avg temp
- 22°C
- Rainfall
- 105 mm
- Humidity
- 77%
- Days with 6h+ sun
- 28
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$ · Moderate Cost ($$)
September in Bora Bora scores 8.0/10 for beach and coastal travel - an above-average month (#5 of 12). Expect around 22°C, 105 mm of rain, and roughly 28 days with 6+ hours of sunshine this month.
A lagoon wraps around Mount Otemanu at Bora Bora, with motu beaches and coral gardens across the water.
September in Bora Bora — reliably good (5th best month)
With 22°C (72°F) on average, September delivers classic beach weather: plenty of time in the water, with beach and boat plans rarely disrupted by cold.
105 mm of rain makes this a wet month here, though with about 28 days with 6+ hours of sunshine there is still bright weather between the fronts.
That is 8/10 on the same scale — 5th of 12 months, versus 8.7/10 for the best month here.
Pack light clothing, swimwear and real sun protection, a proper rain shell rather than an umbrella.
Budget for mid-season pricing, and crowds are moderate.
Frequently asked
- What is the weather like in Bora Bora in September?
- In September, Bora Bora averages 22°C, 105 mm of rain, and about 28 days with 6+ hours of sunshine. Its climate-comfort score is 8.0/10.
- Is September a good time to visit Bora Bora?
- September earns a 8.0/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Bora Bora in September?
- Expect about 105 mm of rain in September. Average humidity is 77% and there are about 28 days with 6+ hours of sunshine.
Curated in Bora Bora
Tickets & experiences
Things to do in Bora Bora
Bora Bora, French Polynesia. Live activities and tours from GetYourGuide, matched to this destination.