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Climate · Petite-Île

Petite-Île in September

Warm and wet, as the days lengthen.

Typical weather, averaged over 30 years

September in Petite-Île is warm: highs near 80°F, lows near 65°F. Rain falls on about three days a week, and the days lengthen by 26 minutes from the first week to the last.September in Petite-Île is warm: highs near 27°C, lows near 18°C. Rain falls on about three days a week, and the days lengthen by 26 minutes from the first week to the last.

High
80°F27°Caverage
Low
65°F18°Caverage
Wet days
3a week · 49% of days
Daylight
12h 01mon average

Is September a good time to visit Petite-Île?

Yes. September is one of Petite-Île's best months (June to September).

How we judge it: every month is scored on how close its typical high comes to the range from 70°F to 80°F, how mild its nights are, and how rarely it rains. The best months are the run of months that scores best.How we judge it: every month is scored on how close its typical high comes to the range from 21°C to 27°C, how mild its nights are, and how rarely it rains. The best months are the run of months that scores best.

How September sits in the year

week by week

Temperature

Highs near 80°F in September, against 78°F to 88°F through the year.Highs near 27°C in September, against 26°C to 31°C through the year.

Chance of a wet day

49% of days in September, against 46% to 85% through the year.

Cloud cover

39% cover in September, against 37% to 68% through the year.

Daylight

12h 01m in September, against 10h 51m to 13h 25m through the year.

Week by week, lightly smoothed, with September shaded. The olive line marks the best months. Hover or tap a week for its figures.

Either side

  1. August79°26°low 64°low 18°4 wet days a weekRain on about four days a week.
  2. September80°27°low 65°low 18°3 wet days a weekRain on about three days a week.
  3. October82°28°low 67°low 19°3 wet days a weekRain on about three days a week.

Where Petite-Île sits, in September

Indian/Reunion
this place
typical high in September 40°F4°C95°F35°C
Sunrise, mid-September
6:15 AMsets 6:11 PM
Above the sea
90 mlow-lying
Latitude
21.4°Ssouthern hemisphere
Nearest of ours
our one place here

The land around Petite-Île, shaded by its typical high in September, the planning map's own layer. Hover the map for the figure at that spot; tap it on a phone. Petite-Île is our one place in Réunion so far. Clock times are local, for the 15th.

See September on the planning mapThe whole year in Petite-Île

Typical weather, averaged over 30 years (1995–2024), read 9 km north-west of Petite-Île. Its own grid square is mostly sea and holds only a daily average, so the page reads the nearest square with a true high and low near the town's height. Temperatures are adjusted against 66 weather stations: daytime highs read about 3.1°F cold in the source data and are raised to match, and both highs and lows are adjusted for the town's height (90 m) against the climate model's (403 m).Temperatures are adjusted against 66 weather stations: daytime highs read about 1.7°C cold in the source data and are raised to match, and both highs and lows are adjusted for the town's height (90 m) against the climate model's (403 m). Daylight is calculated from latitude. Charts are lightly smoothed week to week; the figures in the table are not. Source: Copernicus ERA5-Land reanalysis; cloud cover from NASA's MERRA-2 reanalysis, on a coarser grid of about 50 km. Contains modified Copernicus Climate Change Service information 2026; neither the European Commission nor ECMWF is responsible for any use of it. These are averages, not a forecast.

Daylight is calculated from latitude. Charts are lightly smoothed week to week; the figures in the table are not.

Source: Copernicus ERA5-Land reanalysis; cloud cover from NASA's MERRA-2 reanalysis, on a coarser grid of about 50 km. Contains modified Copernicus Climate Change Service information 2026; neither the European Commission nor ECMWF is responsible for any use of it. These are averages, not a forecast.