Best year time to visit Bonn

General weather information about Bonn

Average annual temperature is 21.7 °C

Absolute maximum temperature: 40.1 °C

Absolute minimum temperature: -0.2 °C

Number of sunny days: 169 days

Number of rainy days: 196 days

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* Weather data for Bonn United States is based on climate observations for 2026 year

Bonn air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)25.728.028.629.933.037.839.040.137.833.429.025.5
Average daytime temperature (°C)19.120.823.424.929.933.735.937.634.227.621.117.8
Average temperature (°C)14.315.518.119.824.428.130.231.628.021.715.712.6
Average night temperature (°C)10.511.814.315.919.823.725.626.723.017.111.88.6
Absolute minimum temperature (°C)1.11.8-0.210.913.019.923.422.819.38.54.02.1

Bonn monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)10.011.012.013.013.014.014.013.012.011.010.010.0
Daylight mean duration (h)10.411.112.012.913.714.113.913.212.411.410.610.2
Daylight minimum duration (h)10.010.011.012.013.013.013.012.011.010.010.010.0
Sunshine mean duration (h)6.57.68.88.710.711.511.912.011.09.26.37.9
Precipitation (mm)139159878962659535231649125
Sunny days1281110144122215221821
Rainy days1920202017261991591210
Snow days000000000000

Bonn - weather forecast by months

Bonn weather in januaryBonn weather in februaryBonn weather in marchBonn weather in aprilBonn weather in mayBonn weather in juneBonn weather in julyBonn weather in augustBonn weather in septemberBonn weather in octoberBonn weather in novemberBonn weather in december

Best time to visit Bonn:

The best time to visit Bonn during the most sunny months:

  • July — 11.9(h)
  • August — 12.0(h)

The largest precipitation sum in Bonn is at

  • January — 139(mm)
  • February — 159(mm)
  • December — 125(mm)

    • Weather forecast in the closest to Bonn admin centers

    Weather forecast in the closest towns to Bonn

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    Frequently asked questions

    When is the best time to visit Bonn?
    The historical weather data above shows the warmest, sunniest and driest months to help you choose the best time to visit Bonn.
    What is the weather like in Bonn?
    See average temperature, rainfall and daylight hours for Bonn by month in the table above.
    How many sunny days does Bonn have?
    The monthly weather statistics above show sunshine and rainfall patterns for Bonn throughout the year.