Mont St Michel weather in August 2025

Expect 22°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Mont St Michel in August. Check more long-term weather averages for Mont St Michel in August before you book your next holiday to France in 2025/2026.

  • 22°C maximum daytime temperature in August in Mont St Michel22
    22°C max day temperature
  • 7 hours of sunshine per day
  • 11 days with some rainfall in August in Mont St Michel11
    11 days with some rainfall
  • 13°C minimum night-time temperature in August in Mont St Michel13
    13°C min night temperature
  • 14 hours of daylight per day in August in Mont St Michel14
    14 hours of daylight per day
  • No heat & humidity in August in Mont St Michel0
    No heat & humidity
  • 52 mm monthly rainfall in August in Mont St Michel52
    52 mm of monthly rainfall
  • UV (maximum) index 6 (High) in August in Mont St Michel6
    6 (High) UV index
  • 19°C sea temperature in August in Mont St Michel19
    19°C sea temperature

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The August weather guide for France (Mont St Michel) 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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More about France

How hot is it in Mont St Michel in August?

Daytime temperatures usually reach 22°C in Mont St Michel in August, falling to 13°C at night.

How sunny is it in Mont St Michel in August?

There are normally 7 hours of bright sunshine each day in Mont St Michel in August - that's 50% of daylight hours.

How warm is the sea around Mont St Michel in August?

The average sea temperature around Mont St Michel in August is 19°C.

Does it rain in Mont St Michel in August?

There are usually 11 days with some rain in Mont St Michel in August and the average monthly rainfall is 52mm.

Mont St Michel August sunrise & sunset times

Browse the sunrise and sunset times for Mont St Michel in August 2025. Select a month to view Mont St Michel sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 05:40 20:44
Saturday, 16th August 2025 06:01 20:19
Sunday, 31st August 2025 06:22 19:50

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