Average annual temperature is 11.7 °C
Absolute maximum temperature: 30.5 °C
Absolute minimum temperature: -5.8 °C
Number of sunny days: 111 days
Number of rainy days: 254 days
Look at detailed online map of Delval
* Weather data for Delval 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) | 14.2 | 12.3 | 16.2 | 16.5 | 23.3 | 29.2 | 30.0 | 28.2 | 30.5 | 24.8 | 14.9 | 12.1 |
| Average daytime temperature (°C) | 6.7 | 8.2 | 10.2 | 12.1 | 17.4 | 24.4 | 22.2 | 21.7 | 22.9 | 16.8 | 9.7 | 8.2 |
| Average temperature (°C) | 4.7 | 5.1 | 7.0 | 8.2 | 12.9 | 19.6 | 18.3 | 17.8 | 18.5 | 13.4 | 7.5 | 6.3 |
| Average night temperature (°C) | 2.5 | 2.1 | 3.5 | 4.2 | 8.1 | 13.9 | 14.1 | 13.7 | 14.3 | 10.2 | 5.3 | 4.3 |
| Absolute minimum temperature (°C) | -3.8 | -4.2 | -3.7 | -2.4 | 3.8 | 9.8 | 11.1 | 10.6 | 8.7 | 2.9 | -0.9 | -5.8 |
| 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) | 8.6 | 10.1 | 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) | 2.9 | 4.6 | 5.0 | 7.3 | 10.6 | 12.9 | 10.9 | 10.1 | 9.2 | 6.2 | 3.4 | 2.0 |
| Precipitation (mm) | 86 | 15 | 130 | 79 | 53 | 46 | 113 | 83 | 76 | 122 | 122 | 87 |
| Sunny days | 9 | 14 | 4 | 8 | 14 | 20 | 5 | 4 | 16 | 9 | 1 | 7 |
| Rainy days | 22 | 14 | 27 | 22 | 17 | 10 | 26 | 27 | 14 | 22 | 29 | 24 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Delval during the most sunny months:
Months with the longest average daylight duration in Delval:
The largest precipitation sum in Delval is at