Bewolking — 2023
| Month | Gembloux | Walhain | Difference |
|---|---|---|---|
| Jan | – | – | – |
| Feb | – | – | – |
| Mar | 87.7 % | 86.7 % | +1.0 |
| Apr | 70.1 % | 69.8 % | +0.3 |
| May | 60 % | 59.8 % | +0.2 |
| Jun | 39.9 % | 39.8 % | +0.1 |
| Jul | 63.1 % | 63.4 % | -0.3 |
| Aug |
| 60.1 % |
| 60.8 % |
| -0.7 |
| Sep | 56.7 % | 56.8 % | -0.1 |
| Oct | 77 % | 77 % | +0.0 |
| Nov | 79.7 % | 79.1 % | +0.6 |
| Dec | 87.1 % | 85.9 % | +1.2 |