Average annual temperature is 11.9 °C
Absolute maximum temperature: 31.8 °C
Absolute minimum temperature: -5.7 °C
Number of sunny days: 130 days
Number of rainy days: 235 days
Look at detailed online map of Jollain-Merlin
* Weather data for Jollain-Merlin 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 | 11.7 | 16.9 | 16.5 | 23.5 | 29.8 | 30.0 | 28.2 | 31.8 | 24.5 | 15.5 | 13.0 |
| Average daytime temperature (°C) | 7.5 | 8.8 | 10.7 | 12.5 | 17.8 | 24.9 | 22.4 | 22.1 | 23.4 | 17.1 | 10.4 | 8.9 |
| Average temperature (°C) | 5.2 | 5.5 | 7.4 | 8.4 | 13.1 | 19.7 | 18.3 | 17.9 | 18.5 | 13.5 | 8.0 | 6.8 |
| Average night temperature (°C) | 2.7 | 2.2 | 3.8 | 4.1 | 8.0 | 13.8 | 14.1 | 13.6 | 13.9 | 10.1 | 5.6 | 4.6 |
| Absolute minimum temperature (°C) | -4.1 | -4.3 | -3.1 | -1.7 | 3.5 | 9.8 | 10.7 | 10.4 | 8.5 | 2.0 | 0.2 | -5.7 |
| 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 | 15.9 | 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) | 3.3 | 4.8 | 4.8 | 7.7 | 10.3 | 13.1 | 10.7 | 10.7 | 9.2 | 6.1 | 3.7 | 2.2 |
| Precipitation (mm) | 88 | 9 | 141 | 84 | 65 | 30 | 116 | 66 | 63 | 130 | 126 | 81 |
| Sunny days | 8 | 16 | 4 | 10 | 16 | 20 | 8 | 9 | 18 | 12 | 2 | 7 |
| Rainy days | 23 | 12 | 27 | 20 | 15 | 10 | 23 | 22 | 12 | 19 | 28 | 24 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Jollain-Merlin during the most sunny months:
Months with the longest average daylight duration in Jollain-Merlin:
The largest precipitation sum in Jollain-Merlin is at