Bewolking — 2023
| Month | Drogenbos | Ukkel | Difference |
|---|---|---|---|
| Jan | – | – | – |
| Feb | – | – | – |
| Mar | 87.5 % | 87.5 % | +0.0 |
| Apr | 69 % | 69 % | +0.0 |
| May | 61 % | 61 % | +0.0 |
| Jun | 39.7 % | 39.7 % | +0.0 |
| Jul | 63.7 % | 63.7 % | +0.0 |
| Aug |
| 60.7 % |
| 60.7 % |
| +0.0 |
| Sep | 57.4 % | 57.4 % | +0.0 |
| Oct | 76.2 % | 76.2 % | +0.0 |
| Nov | 77.7 % | 77.7 % | +0.0 |
| Dec | 83.8 % | 83.8 % | +0.0 |