Bewolking — 2023
| Month | Lasne | Genappe | Difference |
|---|---|---|---|
| Jan | – | – | – |
| Feb | – | – | – |
| Mar | 87.1 % | 87.5 % | -0.4 |
| Apr | 69.8 % | 70.1 % | -0.3 |
| May | 60.4 % | 60.5 % | -0.1 |
| Jun | 39.4 % | 39.7 % | -0.3 |
| Jul | 64.2 % | 64 % | +0.2 |
| Aug |
| 61.2 % |
| 60.7 % |
| +0.5 |
| Sep | 56.9 % | 57 % | -0.1 |
| Oct | 76.9 % | 77.1 % | -0.2 |
| Nov | 79.2 % | 79.7 % | -0.5 |
| Dec | 85.3 % | 86.3 % | -1.0 |