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Reunion weather in September 2025
Expect 22°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Reunion in September. Check more long-term weather averages for Reunion in September before you book your next holiday to Reunion in 2025/2026.
- 2222°C max day temperature
- 7 hours of sunshine per day
- 1212 days with some rainfall
- 1515°C min night temperature
- 1212 hours of daylight per day
- 0No heat & humidity
- 4747 mm of monthly rainfall
- 1010 (Very High) UV index
- 2323°C sea temperature
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Recommended for Reunion
The September weather guide for Reunion (Saint-Denis) 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.
Top Reunion destinations
Below are average maximum temperatures at popular countries, regions and places in Reunion in September. Select a holiday destination to see more weather parameters.
All Reunion destinations
Metric (°C / mm) | Imperial (°F / inches)
How hot is it in Reunion in September?
Daytime temperatures usually reach 22°C in Saint-Denis, Reunion in September, falling to 15°C at night.
How sunny is it in Reunion in September?
There are normally 7 hours of bright sunshine each day in Saint-Denis, Reunion in September - that's 55% of daylight hours.
How warm is the sea around Reunion in September?
The average sea temperature around Saint-Denis, Reunion in September is 23°C.
Does it rain in Reunion in September?
There are usually 12 days with some rain in Saint-Denis, Reunion in September and the average monthly rainfall is 47mm.
Reunion September sunrise & sunset times
Browse the sunrise and sunset times for Reunion in September 2025. Select a month to view Reunion sunrise and sunset times for the next 12 months. The Reunion sunrise and sunset times shown below are for Saint-Denis.
JanFebMarAprMayJunJulAugSepOctNovDec
Date | Sunrise times | Sunset times |
---|---|---|
Monday, 1st September 2025 | 06:27 | 18:09 |
Monday, 15th September 2025 | 06:14 | 18:13 |
Tuesday, 30th September 2025 | 06:00 | 18:16 |
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