Reunion weather in September 2026

Q: 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.

Q: 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.

Q: How warm is the sea around Reunion in September?

The average sea temperature around Saint-Denis, Reunion in September is 23°C.

Q: 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.

Expect daytime maximum temperatures of 22°C in Reunion in September based on long-term weather averages. There are 7 hours of sunshine per day on average with 12 days with some rainfall and typically 47 mm of rainfall in the month.

22
22°C max day temperature
7
7 hours of sunshine per day
12
12 days with some rainfall
15
15°C min night temperature
12
12 hours of daylight per day
0
No heat & humidity
47
47 mm of monthly rainfall
10
10 (Very High) UV index
23
23°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.

Reunion temperatures in September

Below are average maximum temperatures at popular countries, regions and places in Reunion in September. Select a holiday destination to see more weather parameters.

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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 2026. 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.

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