French Alps weather in August 2025

Expect 10°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in French Alps in August. Check more long-term weather averages for French Alps in August before you book your next holiday to French Alps in 2025/2026.

  • 10°C maximum daytime temperature in August in French Alps (Chamonix)10
    10°C max day temperature
  • 7 hours of sunshine per day
  • 15 days with some rainfall in August in French Alps (Chamonix)15
    15 days with some rainfall
  • 4°C minimum night-time temperature in August in French Alps (Chamonix)4
    4°C min night temperature
  • 14 hours of daylight per day in August in French Alps (Chamonix)14
    14 hours of daylight per day
  • No heat & humidity in August in French Alps (Chamonix)0
    No heat & humidity
  • 152 mm monthly rainfall in August in French Alps (Chamonix)152
    152 mm of monthly rainfall
  • UV (maximum) index 8 (Very High) in August in French Alps (Chamonix)8
    8 (Very High) UV index

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The August weather guide for French Alps (Chamonix) 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 the French Alps

How warm is it in the French Alps in August?

Daytime temperatures usually reach 10°C in Chamonix, French Alps in August, falling to 4°C at night.

How sunny is it in the French Alps in August?

There are normally 7 hours of bright sunshine each day in Chamonix, French Alps in August - that's 48% of daylight hours.

Does it rain in the French Alps in August?

There are usually 15 days with some rain in Chamonix, French Alps in August and the average monthly rainfall is 152mm.

French Alps August sunrise & sunset times

Browse the sunrise and sunset times for French Alps in August 2025. Select a month to view French Alps sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 05:15 20:02
Saturday, 16th August 2025 05:34 19:39
Sunday, 31st August 2025 05:52 19:12

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