St Leu weather in September 2025

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

  • 23°C maximum daytime temperature in September in St Leu23
    23°C max day temperature
  • 7 hours of sunshine per day
  • 12 days with some rainfall in September in St Leu12
    12 days with some rainfall
  • 15°C minimum night-time temperature in September in St Leu15
    15°C min night temperature
  • 12 hours of daylight per day in September in St Leu12
    12 hours of daylight per day
  • No heat & humidity in September in St Leu0
    No heat & humidity
  • 47 mm monthly rainfall in September in St Leu47
    47 mm of monthly rainfall
  • UV (maximum) index 10 (Very High) in September in St Leu10
    10 (Very High) UV index
  • 23°C sea temperature in September in St Leu23
    23°C sea temperature

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The September weather guide for Reunion (St Leu) 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 Leu in September?

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

How sunny is it in St Leu in September?

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

How warm is the sea around St Leu in September?

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

Does it rain in St Leu in September?

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

St Leu September sunrise & sunset times

Browse the sunrise and sunset times for St Leu in September 2025. Select a month to view St Leu 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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