Bonn Weather & Climate: Best Time to Visit
Bonn, North Rhine-Westphalia, Germany, experiences significant temperature variation throughout the year. Summers bring daytime highs of 25°C (77°F) in July, while winters cool to 6°C (43°F) in January.
Bonn sees a moderate amount of rain/snowfall, totalling around 901 mm (35 in) per year. July is the sunniest month, averaging 7.0 hours of sunshine per day.
Monthly Temperature in Bonn
Depending on the time of the year, temperatures range from comfortable to chilly in Bonn. Average maximum daytime temperatures range from a comfortable 25°C (77°F) in July, the warmest time of the year, to a chilly 6°C (43°F) during cooler months like January.
At night, you can expect temperatures ranging from 14°C (57°F) in July to around 1°C (34°F) during January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Bonn
Generally, Bonn has a moderate amount of precipitation, averaging 901 mm (35 in) 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 (3.5 in), and the driest month, April, with 57 mm (2.2 in), is minimal. For more details, please visit our Bonn Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Bonn
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.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Bonn 3-Day Forecast
Check the conditions for any month of the year.
Best Time to Visit Bonn
During the months of May, June, July, August and September, Bonn enjoys pleasant weather with average temperatures ranging from 19°C (67°F) to 25°C (76°F). These months are perfect for sightseeing and exploring.Rainfall during this time ranges from 69 mm (2.7 in) in May to 85 mm (3.3 in) in August. This means you can expect a mix of sunny days and occasional showers. Looking for inspiration on where to travel this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.
