St Gilles weather in September 2025

Expect 23°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in St Gilles in September. Check more long-term weather averages for St Gilles in September before you book your next holiday to Reunion in 2025/2026.

  • 23°C maximum daytime temperature in September in St Gilles23
    23°C max day temperature
  • 7 hours of sunshine per day
  • 12 days with some rainfall in September in St Gilles12
    12 days with some rainfall
  • 15°C minimum night-time temperature in September in St Gilles15
    15°C min night temperature
  • 12 hours of daylight per day in September in St Gilles12
    12 hours of daylight per day
  • No heat & humidity in September in St Gilles0
    No heat & humidity
  • 47 mm monthly rainfall in September in St Gilles47
    47 mm of monthly rainfall
  • UV (maximum) index 10 (Very High) in September in St Gilles10
    10 (Very High) UV index
  • 23°C sea temperature in September in St Gilles23
    23°C sea temperature

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The September weather guide for Reunion (St Gilles) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C / mm)  |  Imperial (°F / inches)

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How hot is it in St Gilles in September?

Daytime temperatures usually reach 23°C in St Gilles in September, falling to 15°C at night.

How sunny is it in St Gilles in September?

There are normally 7 hours of bright sunshine each day in St Gilles in September - that's 55% of daylight hours.

How warm is the sea around St Gilles in September?

The average sea temperature around St Gilles in September is 23°C.

Does it rain in St Gilles in September?

There are usually 12 days with some rain in St Gilles in September and the average monthly rainfall is 47mm.

St Gilles September sunrise & sunset times

Browse the sunrise and sunset times for St Gilles in September 2025. Select a month to view St Gilles sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 06:28 18:10
Monday, 15th September 2025 06:15 18:13
Tuesday, 30th September 2025 06:01 18:17

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