Bonn Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Bonn.
Climate overview of Bonn
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.
Bonn Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Bonn — and find the best time to visit.
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
Best Time to Visit Bonn
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.
Frequently asked questions about the climate in Bonn
What is the best time to visit Bonn?
June, July, August and September typically offer the most optimal weather in Bonn. In contrast, January, February, November and December tend to have less optimal conditions.
What temperatures can I expect in Bonn?
Daytime highs range from 6°C (43°F) in January to 25°C (77°F) in July. Nighttime lows range from 1°C (34°F) to 14°C (57°F). Temperatures vary considerably through the year.
How much rain does Bonn get?
Annual rainfall is around 901 mm (35 in). December is the wettest month with 88 mm (3.5 in), while April is the driest with 57 mm (2.2 in).
How sunny is Bonn?
Bonn receives around 1,540 hours of sunshine per year. July is the sunniest month with 210 hours, while December is the cloudiest with just 41 hours.
Bonn 3-Day Forecast
Bonn 3-Day Forecast
Bonn on the map
Bonn is highlighted — select any city to see its climate.
Popular this month
Where to go in July — average daytime high across popular destinations.
Berlin
26°C (79°F) Düsseldorf25°C (77°F) Hanover25°C (77°F) Munich
25°C (77°F) Cologne25°C (77°F) Hamburg24°C (75°F) Winterberg22°C (72°F) Binz
21°C (70°F) 
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