Bewolking — 2025
| Month | Fléron | Chaudfontaine | Difference |
|---|---|---|---|
| Jan | 76.6 % | 77.6 % | -1.0 |
| Feb | 73.8 % | 73.5 % | +0.3 |
| Mar | 46.7 % | 46.9 % | -0.2 |
| Apr | 47.5 % | 46.6 % | +0.9 |
| May | 54.9 % | 54.8 % | +0.1 |
| Jun | 50.7 % | 50.3 % | +0.4 |
| Jul | 57.7 % | 56.5 % | +1.2 |
| Aug |
| 52.9 % |
| 54.1 % |
| -1.2 |
| Sep | 65.9 % | 65.6 % | +0.3 |
| Oct | 87.4 % | 86 % | +1.4 |
| Nov | 79.5 % | 80.7 % | -1.2 |
| Dec | 74.8 % | 75.5 % | -0.7 |