Brittany weather in October 2025

Expect 16°C daytime maximum temperatures in the shade with on average 4 hours of sunshine per day in Brittany in October. Check more long-term weather averages for Brittany in October before you book your next holiday to Brittany in 2025/2026.

  • 16°C maximum daytime temperature in October in Brittany (Brest)16
    16°C max day temperature
  • 4 hours of sunshine per day
  • 18 days with some rainfall in October in Brittany (Brest)18
    18 days with some rainfall
  • 10°C minimum night-time temperature in October in Brittany (Brest)10
    10°C min night temperature
  • 11 hours of daylight per day in October in Brittany (Brest)11
    11 hours of daylight per day
  • No heat & humidity in October in Brittany (Brest)0
    No heat & humidity
  • 99 mm monthly rainfall in October in Brittany (Brest)99
    99 mm of monthly rainfall
  • UV (maximum) index 3 (Moderate) in October in Brittany (Brest)3
    3 (Moderate) UV index
  • 15°C sea temperature in October in Brittany (Brest)15
    15°C sea temperature

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The October weather guide for Brittany (Brest) 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 Brittany destinations

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

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

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How warm is it in Brittany in October?

Daytime temperatures usually reach 16°C in Brest, Brittany in October, falling to 10°C at night.

How sunny is it in Brittany in October?

There are normally 4 hours of bright sunshine each day in Brest, Brittany in October - that's 36% of daylight hours.

How warm is the sea around Brittany in October?

The average sea temperature around Brest, Brittany in October is 15°C.

Does it rain in Brittany in October?

There are usually 18 days with some rain in Brest, Brittany in October and the average monthly rainfall is 99mm.

Brittany October sunrise & sunset times

Browse the sunrise and sunset times for Brittany in October 2025. Select a month to view Brittany sunrise and sunset times for the next 12 months. The Brittany sunrise and sunset times shown below are for Brest.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st October 2025 07:17 18:57
Thursday, 16th October 2025 07:39 18:27
Friday, 31st October 2025 08:02 18:00

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