French Polynesia
Bora Bora in September: weather, sea & travel advice
This month's data profile
Sea conditions lead
Bora Bora in September is climatically well suited to beach holidays, family holidays and city breaks. The average daily high is around 26 °C, and the sea is about 27 °C. With about 10 rainy days it is moderate.
Historical monthly averages, not a weather forecast. Individual days and years can differ substantially.
Rank among 12 monthly averages
83/100 · #1
Warmth
#11
Dryness
#1
Sun
#7
Sea warmth
#12
Published best categories: Overall, Beach, City break, Active, Family
Bora Bora · SeptemberPhoto: The TerraMar Project · CC BY 2.0Climate facts
- Average high
- 26 °C
- Average low
- 26 °C
- Sea
- 27 °C
- Rainy days (est.)
- 10 rainy days (est.)
- Sun (est.)
- 7 h/day
- Humidity
- 78 %
Climate evidence with direct month comparison
The highlighted row is the selected month. Precipitation total and rainy days are separate monthly averages.
| Month | Avg high °C | Avg low °C | Rainy days (est.) | Precipitation mm | Sun h/day (est.) | Humidity % | Wind m/s | Sea °C | Score |
|---|---|---|---|---|---|---|---|---|---|
| August | 26 | 25 | 10 | 46 | 6.4 | 77 | 5.1 | 27 | 82 |
| September (selected) | 26 | 26 | 10 | 42 | 7.3 | 78 | 5.3 | 27 | 83 |
| October | 27 | 26 | 15 | 84 | 7.9 | 79 | 4.9 | 27 | 73 |
How do the previous and next months compare?
Baseline: September (83/100)
Positive and negative values show the change from the selected month.
| Score Δ | Average high Δ | Average low Δ | Rainy days Δ | Rain Δ | Sun Δ | Humidity Δ | Wind Δ | Sea Δ | |
|---|---|---|---|---|---|---|---|---|---|
| August | -1 | -0.1 °C | -0.1 °C | +0.2 | +3.7 mm | -0.9 h | -0.9 % | -0.1 m/s | +0.1 °C |
| October | -10 | +0.4 °C | +0.4 °C | +5.1 | +41.2 mm | +0.6 h | +1 % | -0.4 m/s | +0.4 °C |
All twelve months in context
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Useful next decisions
Frequently asked questions
How warm is Bora Bora in September?
The average daily high is around 26 °C, with an average daily low of about 26 °C.
Can you swim in Bora Bora in September?
The sea is about 27 °C (warm).
Does it rain a lot in Bora Bora in September?
The curated estimate is about 10 rainy days per month, not a directly measured long-term average. Total precipitation averages around 42 mm for the month. A rainy day does not mean all-day rain.
When is the best time to visit Bora Bora?
By the climate score, June, July, August and September are the strongest months for Bora Bora. For a beach trip: July, August, September and October. September is one of them.