Bewolking — 2026
| Month | Krimpen aan den IJssel | Alblasserdam | Difference |
|---|---|---|---|
| Jan | 78.4 % | – | – |
| Feb | 81.1 % | – | – |
| Mar | 53.3 % | 64.4 % | -11.1 |
| Apr | 78.8 % | 77.3 % | +1.5 |
| May | 58.6 % | 60 % | -1.4 |
| Jun | 61 % | 62.1 % | -1.1 |
| Jul | 49.2 % | 47.8 % | +1.4 |
| Aug |
| 53.9 % |
| 54.4 % |
| -0.5 |
| Sep | 72.5 % | 72.2 % | +0.3 |
| Oct | 65.2 % | 64.6 % | +0.6 |
| Nov | – | – | – |
| Dec | – | – | – |