Temperature
Pleasant by day, mild at night.
70°Ftypical September high
Typical range
September climate
September in Austral Islands
French Polynesia · Oceania
Warm coastal days and some sun. Wind on exposed beaches is the main drawback.
One of the best months here
Daytime high
70°F
Lows around 68°F
Rain
Several rainy days
Sun
9.5 h/day
Air feel
Comfortable
Sea temp
71°F
Cool water for swimming
Wind
16 mph
Windy
When to visit
Month-by-month fit
Best
Precipitation
Several rainy days. About 9 wet days, fewer than in most months.
30%wet-day frequency
AmountWet-day chance
Sunshine
A mix of sunshine and cloud.
9.6 hSeptember sunshine
Heat & humidity by month
ComfortableSeptember
Easy airWarm airHumid airVery humid air
Hourly temperature pattern
In September, days and nights feel about the same, around 63°.
CoolComfortableWarmNight hours
Clear sky
Mostly cloudy skies this month.
32%September Clear sky
Clear skyCloud
Wind pattern
Wind can affect exposed beach comfort.
16 mphSeptember Windy
Sea temperature
71°FSeptember sea temp
More detailIncludes daypart comfort
Typical September day
September stays around 69°F through the day and night.
Avg temp Typical range
Morning69°F
Rain17%
Cloud67%
Humid airLow
Sun intensityModerate
Midday69°F
Rain14%
Cloud65%
Humid airLow
Sun intensityStrong
Best windowLate afternoon69°F
Rain14%
Cloud66%
Humid airLow
Sun intensityModerate
Early evening69°F
Rain16%
Cloud68%
Humid airLow
Sun intensityMinimal
Data tableView month-by-month numbers
View month-by-month numbers
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% | Sea°F |
|---|---|---|---|---|---|---|---|
| Jan | 77 | 75 | 5.6 | 15 | 10.8 | 82 | 77 |
| Feb | 78 | 76 | 7.0 | 14 | 10.4 | 81 | 79 |
| Mar | 78 | 76 | 7.2 | 17 | 10.1 | 81 | 79 |
| Apr | 76 | 74 | 6.5 | 14 | 9.0 | 77 | 78 |
| May | 74 | 72 | 4.9 | 12 | 8.1 | 76 | 75 |
| Jun | 72 | 70 | 5.3 | 11 | 7.9 | 73 | 73 |
| Jul | 71 | 68 | 4.3 | 10 | 8.0 | 73 | 72 |
| Aug | 70 | 67 | 4.7 | 10 | 8.6 | 72 | 71 |
| Sep | 70 | 68 | 3.2 | 9 | 9.6 | 74 | 71 |
| Oct | 71 | 69 | 3.5 | 8 | 10.2 | 75 | 72 |
| Nov | 73 | 71 | 4.1 | 9 | 10.8 | 77 | 73 |
| Dec | 75 | 73 | 6.5 | 13 | 10.5 | 80 | 75 |
Similar climates
Similar
Similar travel stylePort LouisMauritiusSimilar travel styleWhitsundaysAustraliaSimilar travel styleAirlie BeachAustraliaSimilar travel styleByron BayAustralia
Want a side-by-side climate view? Compare Austral Islands with Port Louis.
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: Aug 26, 2026
Data & methodology