Average annual temperature is 15.6 °C
Absolute maximum temperature: 40.1 °C
Absolute minimum temperature: -0.1 °C
Number of sunny days: 201 days
Number of rainy days: 164 days
Look at detailed online map of Bonn
* Weather data for Bonn Australia is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 37.6 | 40.1 | 38.6 | 27.2 | 19.7 | 19.2 | 16.8 | 19.6 | 27.9 | 28.6 | 32.8 | 36.1 |
| Average daytime temperature (°C) | 29.9 | 29.5 | 26.0 | 20.7 | 15.7 | 13.5 | 13.3 | 15.1 | 19.9 | 20.0 | 25.9 | 27.8 |
| Average temperature (°C) | 22.8 | 21.9 | 19.5 | 15.2 | 10.9 | 10.0 | 9.0 | 10.1 | 13.5 | 14.3 | 19.0 | 21.1 |
| Average night temperature (°C) | 16.3 | 15.4 | 14.2 | 10.8 | 7.0 | 7.1 | 5.2 | 5.9 | 7.9 | 8.9 | 13.3 | 15.3 |
| Absolute minimum temperature (°C) | 12.1 | 9.8 | 9.4 | 6.3 | 2.9 | 0.4 | 1.4 | -0.1 | 2.7 | 5.1 | 8.4 | 10.9 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 |
| Daylight mean duration (h) | 14.3 | 13.4 | 12.3 | 11.2 | 10.2 | 9.7 | 9.9 | 10.8 | 11.9 | 13.0 | 14.1 | 14.6 |
| Daylight minimum duration (h) | 13.0 | 12.0 | 11.0 | 10.0 | 9.0 | 9.0 | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 |
| Sunshine mean duration (h) | 11.6 | 11.9 | 9.6 | 8.4 | 7.4 | 5.7 | 6.8 | 7.5 | 10.0 | 9.9 | 11.7 | 11.3 |
| Precipitation (mm) | 27 | 7 | 44 | 70 | 22 | 91 | 35 | 30 | 15 | 64 | 55 | 82 |
| Sunny days | 22 | 24 | 15 | 19 | 17 | 7 | 13 | 17 | 20 | 15 | 15 | 17 |
| Rainy days | 9 | 4 | 16 | 11 | 14 | 23 | 18 | 14 | 10 | 16 | 15 | 14 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Bonn during the most sunny months:
The largest precipitation sum in Bonn is at