Grenoble weather in August 2025

Expect 23°C daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in Grenoble in August based on long-term weather averages. There is usually 11 days with some rainfall and 86 mm of average monthly rainfall in August.

  • 23°C maximum daytime temperature in August in Grenoble23
    23°C max day temperature
  • 8 hours of sunshine per day
  • 11 days with some rainfall in August in Grenoble11
    11 days with some rainfall
  • 12°C minimum night-time temperature in August in Grenoble12
    12°C min night temperature
  • 14 hours of daylight per day in August in Grenoble14
    14 hours of daylight per day
  • No heat & humidity in August in Grenoble0
    No heat & humidity
  • 86 mm monthly rainfall in August in Grenoble86
    86 mm of monthly rainfall
  • UV (maximum) index 7 (High) in August in Grenoble7
    7 (High) UV index

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The August weather guide for France (Grenoble) 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 Grenoble in August?

Daytime temperatures usually reach 23°C in Grenoble in August, falling to 12°C at night.

How sunny is it in Grenoble in August?

There are normally 8 hours of bright sunshine each day in Grenoble in August - that's 58% of daylight hours.

Does it rain in Grenoble in August?

There are usually 11 days with some rain in Grenoble in August and the average monthly rainfall is 86mm.

Grenoble August sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 05:22 20:04
Saturday, 16th August 2025 05:40 19:42
Sunday, 31st August 2025 05:58 19:16

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