Bonn Weather, When to Go and Climate Information

(Bonn, North Rhine-Westphalia, Germany)

The weather in Bonn is typical of what can be expected in Germany, being rather fickle at times. Most people tend to visit the city of Bonn between the months of May and September, when the climate tends to be at its most stable, the days are at their longest and sunny weather is most likely.

During the summer months, many beer gardens and cafes with al fresco areas quickly fill up, and a range of outdoor events take advantage of the fine weather all around the Bonn area. However, don't be lulled into a false sense of security, as rainy weather is often quite random and a quick shower can be rather unexpected and dampen even the sunniest of days.

Seasonal Climate Variations / When to Go

The weather in Bonn generally changes only slightly month by month, with subtle differences in temperature and overall climate, often being influenced by the strong westerly maritime winds which blow in from the North Sea at times. In general, when visiting the city of Bonn, you can expect warm summers, followed by reasonably mild winters, when cloudy skies are usually the norm.

Located in northern Europe, Bonn experiences four fairly distinctive seasons, with January being the coldest month, when daytime temperatures average around 3°C / 37°F, climbing to 10°C / 50°F by the end of March. During the winter months and coldest spells, snowy weather is light at most, with damp days being more likely. By the time the August climate arrives in Bonn, precipitation levels are surprisingly slightly higher, but by no means excessive. With long spells of sunshine, summer temperatures regularly top 20°C / 68°F, rising to more than 25°C / 77°F at times, when the tourist season is at its busiest.

Bonn Weather and Climate Chart (Averages)

	Maximum	Minimum
January	3°C / 37°F	0°C / 32°F
February	5°C / 41°F	1°C / 34°F
March	8°C / 46°F	2°C / 36°F
April	13°C / 55°F	5°C / 41°F
May	17°C / 63°F	10°C / 50°F
June	20°C / 68°F	13°C / 55°F
July	22°C / 72°F	15°C / 59°F
August	23°C / 73°F	14°C / 57°F
September	18°C / 64°F	11°C / 52°F
October	13°C / 55°F	7°C / 45°F
November	7°C / 45°F	4°C / 39°F
December	5°C / 41°F	2°C / 36°F