Over the course of the year, the temperature typically varies from 32°F to 76°F and is rarely below 19°F or above 87°F.

Aside from the depths of winter, the climate in the Bonn, Germany is relatively mild.

Precipitation falls pretty evenly throughout the year, although there is a greater chance of precipitation during the winter months of December and January.

Your best bet when planning a trip to Bonn may be to travel in the late spring or early autumn. Not only is the weather likely to be more pleasant during this time period, but it will also help you avoid the tourist onslaught during the summertime when Germany, and all of Europe for that matter, literally crawls with backpackers.