Bewolking — 2023
| Maand | Zemst | Vilvoorde | Verschil |
|---|---|---|---|
| Jan | – | – | – |
| Feb | – | – | – |
| Mrt | 84.1 % | 84 % | +0.1 |
| Apr | 67.8 % | 68.7 % | -0.9 |
| Mei | 61.1 % | 61 % | +0.1 |
| Jun | 41.6 % | 40.5 % | +1.1 |
| Jul | 63.5 % | 63.7 % | -0.2 |
| Aug |
| 60.6 % |
| 60.4 % |
| +0.2 |
| Sep | 56.7 % | 56.7 % | +0.0 |
| Okt | 76.7 % | 76.2 % | +0.5 |
| Nov | 74.6 % | 75.9 % | -1.3 |
| Dec | 83.4 % | 83.7 % | -0.3 |