Brittany weather in September 2021

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Below are average maximum temperatures at popular destinations in Brittany in September. Select a destination to see more weather parameters.

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The September weather guide for Brittany 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.

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How hot is it in Brittany in September?

Daytime temperatures usually reach 19°C in Brest, Brittany in September, falling to 12°C at night.

How sunny is it in Brittany in September?

There are normally 6 hours of bright sunshine each day in Brest, Brittany in September - that's 44% of daylight hours.

How warm is the sea around Brittany in September?

The average sea temperature around Brest, Brittany in September is 16°C.

Does it rain in Brittany in September?

There are usually 15 days with some rain in Brest, Brittany in September and the average monthly rainfall is 88mm.

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

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Brittany sunrise & sunset times for September 2021

Browse the sunrise and sunset times for Brittany in September 2021. Select a month to view Brittany sunrise & sunset times for the next 12 months. The Brittany sunrise and sunset times shown below are for Brest.


Date Sunrise times Sunset times
Wednesday, 1st September 2021 07:35 20:59
Wednesday, 15th September 2021 07:55 20:30
Thursday, 30th September 2021 08:16 19:59
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