Bewolking — 2023
| Maand | Willebroek | Niel | Verschil |
|---|---|---|---|
| Jan | – | – | – |
| Feb | – | – | – |
| Mrt | 83.9 % | 86.4 % | -2.5 |
| Apr | 67.7 % | 67.7 % | +0.0 |
| Mei | 61.3 % | 61.3 % | +0.0 |
| Jun | 42.2 % | 42.2 % | +0.0 |
| Jul | 63.6 % | 63.6 % | +0.0 |
| Aug |
| 61 % |
| 61 % |
| +0.0 |
| Sep | 57.8 % | 57.8 % | +0.0 |
| Okt | 77.2 % | 77.2 % | +0.0 |
| Nov | 74.4 % | 74.4 % | +0.0 |
| Dec | 83.9 % | 83.9 % | +0.0 |