Bonn weather in August 2025

Expect 23°C daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in Bonn in August. Check more long-term weather averages for Bonn in August before you book your next holiday to Germany in 2025/2026.

  • 23°C maximum daytime temperature in August in Bonn23
    23°C max day temperature
  • 6 hours of sunshine per day
  • 15 days with some rainfall in August in Bonn15
    15 days with some rainfall
  • 13°C minimum night-time temperature in August in Bonn13
    13°C min night temperature
  • 14 hours of daylight per day in August in Bonn14
    14 hours of daylight per day
  • No heat & humidity in August in Bonn0
    No heat & humidity
  • 78 mm monthly rainfall in August in Bonn78
    78 mm of monthly rainfall
  • UV (maximum) index 6 (High) in August in Bonn6
    6 (High) UV index

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The August weather guide for Germany (Bonn) 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 Germany

How hot is it in Bonn in August?

Daytime temperatures usually reach 23°C in Bonn in August, falling to 13°C at night.

How sunny is it in Bonn in August?

There are normally 6 hours of bright sunshine each day in Bonn in August - that's 42% of daylight hours.

Does it rain in Bonn in August?

There are usually 15 days with some rain in Bonn in August and the average monthly rainfall is 78mm.

Bonn August sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 04:58 20:16
Saturday, 16th August 2025 05:21 19:50
Sunday, 31st August 2025 05:44 19:19

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