Temperature
Pleasant by day, warm at night.
78°Ftypical September high
Typical range
September climate
September in Raiatea
French Polynesia · Oceania
Warm coastal days and some sun. Humid air is the main drawback.
Good overall
Early to mid
Daytime high
78°F
Lows around 76°F
Rain
Frequent rain
Sun
11.5 h/day
Air feel
Humid
Sea temp
81°F
Great for swimming
When to visit
Month-by-month fit
Best
Precipitation
Rain is frequent. About 14 wet days, fewer than in most months.
47%wet-day frequency
AmountWet-day chance
Sunshine
Plenty of sun this month.
11.4 hSeptember sunshine
Heat & humidity by month
Warm days, with humid periods.
87%September Heat feel
Easy airWarm airHumid airVery humid air
Hourly temperature pattern
In September, afternoons feel about 77° and nights feel near 76°.
WarmHotNight hours
Clear sky
Partly cloudy skies this month.
57%September Clear sky
Clear skyCloud
Wind pattern
September's typical breeze keeps the air from feeling as stagnant.
15 mphSeptember Breezy
Sea temperature
81°FSeptember sea temp
More detailIncludes daypart comfort
Typical September day
September stays around 78°F through the day and night.
Avg temp Typical range
Morning77°F
Rain28%
Cloud43%
Humid airVery high
Sun intensityModerate
Midday77°F
Rain27%
Cloud40%
Humid airVery high
Sun intensityStrong
Late afternoon78°F
Rain27%
Cloud41%
Humid airVery high
Sun intensityModerate
Early evening77°F
Rain28%
Cloud43%
Humid airVery high
Sun intensityMinimal
Best windowData tableView month-by-month numbers
View month-by-month numbers
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% | Sea°F |
|---|---|---|---|---|---|---|---|
| Jan | 81 | 78 | 11.2 | 24 | 10.6 | 82 | 84 |
| Feb | 82 | 78 | 9.5 | 21 | 10.6 | 82 | 84 |
| Mar | 82 | 79 | 6.8 | 22 | 10.8 | 82 | 85 |
| Apr | 82 | 79 | 5.6 | 19 | 10.7 | 81 | 85 |
| May | 81 | 78 | 4.1 | 16 | 10.3 | 80 | 84 |
| Jun | 80 | 78 | 3.4 | 14 | 10.1 | 78 | 82 |
| Jul | 79 | 77 | 2.4 | 13 | 10.3 | 78 | 81 |
| Aug | 78 | 76 | 2.0 | 11 | 10.8 | 77 | 81 |
| Sep | 78 | 76 | 2.8 | 14 | 11.4 | 79 | 81 |
| Oct | 79 | 77 | 4.8 | 16 | 11.4 | 81 | 82 |
| Nov | 80 | 77 | 6.4 | 20 | 11.4 | 82 | 82 |
| Dec | 81 | 78 | 11.3 | 24 | 10.5 | 83 | 83 |
Similar climates
Similar
Similar travel stylePort DenarauFijiSimilar travel styleWhitsundaysAustraliaSimilar travel styleMooreaFrench PolynesiaSimilar travel styleVava'uTonga
Want a side-by-side climate view? Compare Raiatea with Port Denarau.
Climate data notePlanning guidance, not a forecast
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Sunshine: source type is not yet identified at metric level.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Jun 28, 2026
Data & methodology