Douarnenez weather in September 2025

Expect 19°C daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in Douarnenez in September. Check more long-term weather averages for Douarnenez in September before you book your next holiday to France in 2025/2026.

  • 19°C maximum daytime temperature in September in Douarnenez19
    19°C max day temperature
  • 6 hours of sunshine per day
  • 15 days with some rainfall in September in Douarnenez15
    15 days with some rainfall
  • 12°C minimum night-time temperature in September in Douarnenez12
    12°C min night temperature
  • 13 hours of daylight per day in September in Douarnenez13
    13 hours of daylight per day
  • No heat & humidity in September in Douarnenez0
    No heat & humidity
  • 91 mm monthly rainfall in September in Douarnenez91
    91 mm of monthly rainfall
  • UV (maximum) index 4 (Moderate) in September in Douarnenez4
    4 (Moderate) UV index
  • 16°C sea temperature in September in Douarnenez16
    16°C sea temperature

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Douarnenez by month

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The September weather guide for France (Douarnenez) 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 / mm)  |  Imperial (°F / inches)

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How hot is it in Douarnenez in September?

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

How sunny is it in Douarnenez in September?

There are normally 6 hours of bright sunshine each day in Douarnenez in September - that's 45% of daylight hours.

How warm is the sea around Douarnenez in September?

The average sea temperature around Douarnenez in September is 16°C.

Does it rain in Douarnenez in September?

There are usually 15 days with some rain in Douarnenez in September and the average monthly rainfall is 91mm.

Douarnenez September sunrise & sunset times

Browse the sunrise and sunset times for Douarnenez in September 2025. Select a month to view Douarnenez sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 06:35 19:58
Monday, 15th September 2025 06:55 19:29
Tuesday, 30th September 2025 07:15 18:58

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