Bayonne weather in August 2025

Expect 25°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Bayonne in August. Check more long-term weather averages for Bayonne in August before you book your next holiday to France in 2025/2026.

  • 25°C maximum daytime temperature in August in Bayonne25
    25°C max day temperature
  • 7 hours of sunshine per day
  • 13 days with some rainfall in August in Bayonne13
    13 days with some rainfall
  • 16°C minimum night-time temperature in August in Bayonne16
    16°C min night temperature
  • 14 hours of daylight per day in August in Bayonne14
    14 hours of daylight per day
  • No heat & humidity in August in Bayonne0
    No heat & humidity
  • 95 mm monthly rainfall in August in Bayonne95
    95 mm of monthly rainfall
  • UV (maximum) index 7 (High) in August in Bayonne7
    7 (High) UV index
  • 22°C sea temperature in August in Bayonne22
    22°C sea temperature

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

Daytime temperatures usually reach 25°C in Bayonne in August with no heat and humidity, falling to 16°C at night.

How sunny is it in Bayonne in August?

There are normally 7 hours of bright sunshine each day in Bayonne in August - that's 52% of daylight hours.

How warm is the sea around Bayonne in August?

The average sea temperature around Bayonne in August is 22°C.

Does it rain in Bayonne in August?

There are usually 13 days with some rain in Bayonne in August and the average monthly rainfall is 95mm.

Bayonne August sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 05:56 20:28
Saturday, 16th August 2025 06:12 20:07
Sunday, 31st August 2025 06:29 19:43

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