Bora Bora weather in September
September in Bora Bora: warm, rainy, with clean air — an excellent time to visit.
#6 of 12 months in Bora Bora · #299 of 604 destinations to visit in September · comfort 80/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Bora Bora climate normals — September
| Daytime high | 23°C / 74°F | 🌤 warm |
|---|---|---|
| Nighttime low | 22°C / 72°F | |
| Feels like (high) | 24°C / 75°F | |
| Rainfall | 84 mm / 3.3 in | 🌧 rainy |
| Rainy days | 14 days | |
| Humidity | 80% | 💦 very humid |
| Dew point | 19°C / 65°F | |
| Sunshine | 10.6 h/day | |
| Daylight | 12 h | |
| Wind | 29 km/h / 18 mph | |
| Air quality (US AQI) | 32 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is Bora Bora?
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Bora Bora in September — FAQ
- Is September a good time to visit Bora Bora?
- September in Bora Bora: warm, rainy, with clean air — an excellent time to visit. It ranks #6 of 12 months for Bora Bora on SeasonMap's comfort score (80/100).
- What is the weather like in Bora Bora in September?
- In September, Bora Bora averages a daily high of 23.1°C and a low of 22°C, with about 84.1 mm of rain over roughly 14.4 rainy days.
- What is the air quality in Bora Bora in September?
- Bora Bora has a mean US Air Quality Index of about 32 in September.