Bonn Climate by Month
The temperature in Bonn can vary greatly throughout the year.
The temperatures shift from warm
to cold.
It receives mid-range precipitation levels.
Now, let’s explore all the climate details to give you a full picture.
Average day and night temperature
Depending on the time of the year, temperatures range from comfortable to chilly in Bonn. Average daytime temperatures range from a comfortable 25°C in July, the warmest time of the year, to a chilly 6°C during cooler months like January. At night, temperatures typically average around 1°C during these months.
The mean minimum and maximum temperatures throughout the year
Precipitation and rainy days
Generally, Bonn has a moderate amount of precipitation, averaging 901 mm of rain/snowfall annually. Year-round, Bonn has a balanced climate with minimal variation in precipitation. The difference between the wettest month, December, with 88 mm, and the driest month, April, with 57 mm, is minimal.The mean monthly precipitation over the year, including rain, hail and snow
The average number of days each month with precipitation
Sunshine over the year
Seasonal changes in sunshine hours are quite dramatic in Bonn. While July receives considerable daily sunshine with up to 7.0 hours, December marks the darkest time of the year, where sunshine is scarce with only 1.4 hours of sunlight per day.Monthly hours of sunshine
Daily hours of sunshine
The best time of year to visit Bonn in Germany
During the months of June, July, August and September you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.Other facts from our historical weather data:
July has an average maximum temperature of 25°C and is the warmest month of the year.
The coldest month is January with an average maximum temperature of 6°C.
December tops the wettest month list with 88 mm of rainfall.
April is the driest month with 57 mm of precipitation.
July is the sunniest month with an average of 210 hours of sunshine.
No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.
