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Rennes weather in September 2025
Expect 70°F daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in Rennes in September. Check more long-term weather averages for Rennes in September before you book your next holiday to France in 2025/2026.
- 7070°F max day temperature
- 6 hours of sunshine per day
- 1313 days with some rainfall
- 5252°F min night temperature
- 1313 hours of daylight per day
- 0No heat & humidity
- 2.02.0 inches of monthly rainfall
- 44 (Moderate) UV index
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The September weather guide for France (Rennes) 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) | Imperial (°F)
More about France
How hot is it in Rennes in September?
Daytime temperatures usually reach 70°F in Rennes in September, falling to 52°F at night.
How sunny is it in Rennes in September?
There are normally 6 hours of bright sunshine each day in Rennes in September - that's 48% of daylight hours.
Does it rain in Rennes in September?
There are usually 13 days with some rain in Rennes in September and the average monthly rainfall is 2.0 inches.
Rennes September sunrise & sunset times
Browse the sunrise and sunset times for Rennes in September 2025. Select a month to view Rennes sunrise and sunset times for the next 12 months.
JanFebMarAprMayJunJulAugSepOctNovDec
Date | Sunrise times | Sunset times |
---|---|---|
Monday, 1st September 2025 | 06:25 | 19:48 |
Monday, 15th September 2025 | 06:44 | 19:19 |
Tuesday, 30th September 2025 | 07:05 | 18:48 |
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