Average annual temperature is 11.9 °C
Absolute maximum temperature: 31.0 °C
Absolute minimum temperature: -5.5 °C
Number of sunny days: 116 days
Number of rainy days: 249 days
Look at detailed online map of Helle
* Weather data for Helle 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) | 15.0 | 12.1 | 17.0 | 17.2 | 23.5 | 30.1 | 31.0 | 26.8 | 31.0 | 24.9 | 15.3 | 12.6 |
| Average daytime temperature (°C) | 7.3 | 8.5 | 10.5 | 12.4 | 17.7 | 25.0 | 22.3 | 22.0 | 23.4 | 17.1 | 10.2 | 8.7 |
| Average temperature (°C) | 5.2 | 5.3 | 7.2 | 8.5 | 13.2 | 19.9 | 18.4 | 18.0 | 18.5 | 13.6 | 7.7 | 6.7 |
| Average night temperature (°C) | 2.9 | 2.1 | 3.8 | 4.5 | 8.3 | 14.0 | 14.1 | 13.8 | 13.7 | 10.3 | 5.4 | 4.5 |
| Absolute minimum temperature (°C) | -3.3 | -4.4 | -3.3 | -2.4 | 3.4 | 10.0 | 11.4 | 10.6 | 8.4 | 2.5 | -0.7 | -5.5 |
| 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 | 8.0 |
| 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) | 3.1 | 4.4 | 4.6 | 7.3 | 10.3 | 12.9 | 10.7 | 10.2 | 9.0 | 6.2 | 3.5 | 1.9 |
| Precipitation (mm) | 78 | 10 | 132 | 84 | 62 | 48 | 119 | 90 | 76 | 117 | 122 | 89 |
| Sunny days | 9 | 14 | 3 | 9 | 15 | 20 | 3 | 7 | 18 | 10 | 2 | 6 |
| Rainy days | 22 | 14 | 28 | 21 | 16 | 10 | 28 | 24 | 12 | 21 | 28 | 25 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Helle during the most sunny months:
Months with the longest average daylight duration in Helle:
The largest precipitation sum in Helle is at