Average annual temperature is 12.0 °C
Absolute maximum temperature: 31.3 °C
Absolute minimum temperature: -5.3 °C
Number of sunny days: 114 days
Number of rainy days: 251 days
Look at detailed online map of Heisel
* Weather data for Heisel Belgium is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 14.7 | 12.5 | 17.0 | 17.2 | 24.0 | 30.2 | 31.2 | 26.9 | 31.3 | 25.4 | 15.4 | 12.4 |
| Average daytime temperature (°C) | 7.3 | 8.6 | 10.6 | 12.5 | 18.0 | 25.1 | 22.5 | 22.0 | 23.6 | 17.3 | 10.2 | 8.7 |
| Average temperature (°C) | 5.2 | 5.4 | 7.3 | 8.7 | 13.4 | 20.1 | 18.6 | 18.2 | 18.9 | 13.8 | 7.8 | 6.7 |
| Average night temperature (°C) | 2.9 | 2.1 | 3.8 | 4.6 | 8.4 | 14.3 | 14.4 | 14.1 | 14.3 | 10.6 | 5.6 | 4.6 |
| Absolute minimum temperature (°C) | -3.3 | -4.2 | -3.4 | -1.2 | 3.3 | 10.2 | 11.6 | 11.0 | 9.1 | 3.1 | -0.7 | -5.3 |
| 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 | 8.0 |
| 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) | 3.0 | 4.4 | 5.0 | 7.3 | 10.6 | 12.9 | 11.0 | 10.4 | 9.3 | 6.4 | 3.7 | 2.1 |
| Precipitation (mm) | 79 | 11 | 129 | 78 | 68 | 40 | 108 | 66 | 88 | 119 | 124 | 85 |
| Sunny days | 9 | 12 | 3 | 8 | 13 | 22 | 3 | 8 | 17 | 11 | 2 | 6 |
| Rainy days | 22 | 16 | 28 | 22 | 18 | 8 | 28 | 23 | 13 | 20 | 28 | 25 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Heisel during the most sunny months:
Months with the longest average daylight duration in Heisel:
The largest precipitation sum in Heisel is at