Dieppe weather in August 2025

Expect 21°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Dieppe in August. Check more long-term weather averages for Dieppe in August before you book your next holiday to France in 2025/2026.

  • 21°C maximum daytime temperature in August in Dieppe21
    21°C max day temperature
  • 7 hours of sunshine per day
  • 12 days with some rainfall in August in Dieppe12
    12 days with some rainfall
  • 13°C minimum night-time temperature in August in Dieppe13
    13°C min night temperature
  • 14 hours of daylight per day in August in Dieppe14
    14 hours of daylight per day
  • No heat & humidity in August in Dieppe0
    No heat & humidity
  • 54 mm monthly rainfall in August in Dieppe54
    54 mm of monthly rainfall
  • UV (maximum) index 6 (High) in August in Dieppe6
    6 (High) UV index
  • 18°C sea temperature in August in Dieppe18
    18°C sea temperature

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

Daytime temperatures usually reach 21°C in Dieppe in August, falling to 13°C at night.

How sunny is it in Dieppe in August?

There are normally 7 hours of bright sunshine each day in Dieppe in August - that's 49% of daylight hours.

How warm is the sea around Dieppe in August?

The average sea temperature around Dieppe in August is 18°C.

Does it rain in Dieppe in August?

There are usually 12 days with some rain in Dieppe in August and the average monthly rainfall is 54mm.

Dieppe August sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 05:26 20:38
Saturday, 16th August 2025 05:47 20:12
Sunday, 31st August 2025 06:09 19:41

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