Bewolking — 2025
| Maand | Capelle aan den IJssel | Krimpen aan den IJssel | Verschil |
|---|---|---|---|
| Jan | – | 79.9 % | – |
| Feb | – | 72.6 % | – |
| Mrt | – | 42.4 % | – |
| Apr | – | 44.8 % | – |
| Mei | – | 47.7 % | – |
| Jun | – | 48.9 % | – |
| Jul | – | 56.6 % | – |
| Aug | – | 58.3 % | – |
| Sep |
| – |
| 60.3 % |
| – |
| Okt | – | 85.6 % | – |
| Nov | – | 76.3 % | – |
| Dec | – | 76 % | – |