Basel weather in August 2025

Expect 73°F daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Basel in August. Check more long-term weather averages for Basel in August before you book your next holiday to Switzerland in 2025/2026.

  • 73°F maximum daytime temperature in August in Basel73
    73°F max day temperature
  • 7 hours of sunshine per day
  • 15 days with some rainfall in August in Basel15
    15 days with some rainfall
  • 55°F minimum night-time temperature in August in Basel55
    55°F min night temperature
  • 14 hours of daylight per day in August in Basel14
    14 hours of daylight per day
  • No heat & humidity in August in Basel0
    No heat & humidity
  • 4.2 inches monthly rainfall in August in Basel4.2
    4.2 inches of monthly rainfall
  • UV (maximum) index 6 (High) in August in Basel6
    6 (High) UV index

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The August weather guide for Switzerland (Basel) 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)  |  Imperial (°F)

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How hot is it in Basel in August?

Daytime temperatures usually reach 73°F in Basel in August, falling to 55°F at night.

How sunny is it in Basel in August?

There are normally 7 hours of bright sunshine each day in Basel in August - that's 47% of daylight hours.

Does it rain in Basel in August?

There are usually 15 days with some rain in Basel in August and the average monthly rainfall is 4.2 inches.

Basel August sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 05:07 20:04
Saturday, 16th August 2025 05:27 19:40
Sunday, 31st August 2025 05:47 19:12

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