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Bonn Monthly Climate Averages
Bonn is located in oceanic climate that can be described as high humidity and moderate seasonal temperature fluctuations warm summer and soft but windy winter.
To help you choose the best time to travel, you can find climate data below on the weather in Bonn .
Month | t°C day |
t°C night |
mm rain |
daylight |
January | +4.9 | -0.2 | 61 | 9.2h |
February | +6.2 | +0.3 | 54 | 10.7h |
March | +10.6 | +2.2 | 64 | 12.5h |
April | +16.1 | +5.4 | 54 | 14.5h |
May | +19.1 | +8.7 | 72 | 16.3h |
June | +21.8 | +11.5 | 86 | 17.2h |
July | +24.1 | +13.6 | 78 | 16.7h |
August | +23.5 | +13 | 78 | 15.1h |
September | +19.7 | +10.2 | 72 | 13.1h |
October | +14.5 | +6.6 | 63 | 11.2h |
November | +9.7 | +4.1 | 66 | 9.5h |
December | +6.1 | +1 | 68 | 8.7h |
Best time with the soft weather for the sightseeing and long walks in Bonn are May, June, July, August, September.
Temperature in Bonn
The table shows that the hottest months in Bonn are July and August, during which the average daytime temperature reaches +24.1°C and the nighttime temperature falls to +13.6°C.
The coldest months are January and December, when the daily average temperature falls to +4.9°C, and drops to -0.2°C during the night.
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Precipitation
The largest amount of precipitation falls on average in June and July, up to 86mm, and the least in February and April — up to 54mm.