Average annual temperature is 12.1 °C
Absolute maximum temperature: 34.0 °C
Absolute minimum temperature: -4.7 °C
Number of sunny days: 112 days
Number of rainy days: 249 days
Number of snow days: 4 days
Look at detailed online map of Kreisfreie Stadt Bonn
* Weather data for Kreisfreie Stadt Bonn Germany is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 15.2 | 15.4 | 17.5 | 20.3 | 24.4 | 30.6 | 34.0 | 30.9 | 31.4 | 27.5 | 15.3 | 12.1 |
| Average daytime temperature (°C) | 7.2 | 8.7 | 11.0 | 13.2 | 19.0 | 25.5 | 24.1 | 23.2 | 24.1 | 17.8 | 10.0 | 8.2 |
| Average temperature (°C) | 5.0 | 5.1 | 7.2 | 8.7 | 13.7 | 20.3 | 19.4 | 18.6 | 18.6 | 13.9 | 7.6 | 6.2 |
| Average night temperature (°C) | 2.6 | 1.7 | 3.7 | 4.1 | 8.4 | 14.2 | 14.8 | 14.5 | 13.5 | 10.3 | 5.1 | 3.8 |
| Absolute minimum temperature (°C) | -4.7 | -4.7 | -4.3 | -3.5 | 2.8 | 9.4 | 10.9 | 10.3 | 7.7 | 1.9 | -2.3 | -3.5 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 10.0 | 12.0 | 14.0 | 16.0 | 16.0 | 16.0 | 15.0 | 13.0 | 11.0 | 9.0 | 8.0 |
| Daylight mean duration (h) | 8.5 | 10.0 | 11.9 | 13.8 | 15.5 | 16.4 | 16.0 | 14.5 | 12.6 | 10.7 | 9.0 | 8.1 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 10.0 | 12.0 | 14.0 | 16.0 | 15.0 | 13.0 | 11.0 | 9.0 | 8.0 | 7.0 |
| Sunshine mean duration (h) | 2.8 | 4.7 | 5.0 | 7.7 | 10.6 | 13.2 | 10.6 | 9.5 | 9.5 | 5.9 | 3.5 | 2.4 |
| Precipitation (mm) | 94 | 28 | 142 | 91 | 84 | 66 | 139 | 124 | 54 | 99 | 147 | 90 |
| Sunny days | 9 | 13 | 3 | 7 | 11 | 20 | 6 | 7 | 17 | 12 | 2 | 5 |
| Rainy days | 21 | 15 | 27 | 23 | 20 | 10 | 25 | 24 | 13 | 19 | 28 | 24 |
| Snow days | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 |
The best time to visit Kreisfreie Stadt Bonn during the most sunny months:
Months with the longest average daylight duration in Kreisfreie Stadt Bonn:
The largest precipitation sum in Kreisfreie Stadt Bonn is at