Best Time to Visit Bonn, North Rhine-Westphalia, Germany
Month-by-month climate guide for planning a trip to Bonn.
Bonn does not have a month that clearly fits our sunny profiles. Its practical travel window centres on its warmest (July, 18.8°C / 65.8°F) and driest (February, 42 mm / 1.7 in) months. The drier stretch runs through October–April; the wetter half falls in May–September. At the city itself, monthly average temperatures range from 2.6°C / 36.7°F in January to 18.8°C / 65.8°F in July, with rainfall from 42 mm / 1.7 in (February) to 77 mm / 3 in (July). These are point-value climate normals sampled at Bonn, North Rhine-Westphalia, Germany's coordinates — usually more actionable for travellers than the country-wide average. Bonn's climate is broadly seasonal. The full month-by-month table below lets you match your travel window against our five weather profiles.
Recommended months
| Month | Temp | Rain | Feels like |
|---|---|---|---|
| August | 18.5°C65.3°F | 60 mm2.4″ | — |
| July | 18.8°C65.8°F | 77 mm3″ | — |
| September | 14.9°C58.8°F | 59 mm2.3″ | — |
No month at Bonn matches our sunny profiles. The three above are the driest-and-warmest fallback.
Frequently asked questions
When is the best time to visit Bonn?
Bonn doesn't have a month that clearly matches our sunny profiles. The practical travel window centres on February (driest, ~42 mm / 1.7 in) and July (warmest, 18.8°C / 65.8°F). Because these are point values at the city, they can differ substantially from Germany's national average.
When is the rainy season in Bonn?
The rainy season at Bonn, North Rhine-Westphalia runs through May–September, when monthly rainfall exceeds the annual median of about 58 mm / 2.3 in. The wettest single month is July (77 mm / 3 in).
What is the driest month in Bonn?
The driest month in Bonn is February, averaging about 42 mm / 1.7 in of rainfall. Temperature that month averages 3.1°C / 37.6°F.
What months should I avoid visiting Bonn?
The least comfortable months for travel to Bonn — based on point-value climate at the city — are January, February, May, June, July, November, December. These are the wettest or coolest months at this location. Rainfall peaks at 77 mm / 3 in in July, and the coldest month averages 2.6°C / 36.7°F.
Is Bonn climate different from Germany overall?
Yes, usually. Our Bonn figures are point-value climate normals sampled at the city itself, while our Germany figures are area-weighted averages across the whole country. The two can diverge substantially in geographically diverse or elevation-varied countries. The month-by-month table below reflects Bonn specifically — usually the more actionable data for a traveller planning to spend time in the city.