Bewolking — 2023
| Maand | Ridderkerk | Krimpen aan den IJssel | Verschil |
|---|---|---|---|
| Jan | – | – | – |
| Feb | – | – | – |
| Mrt | 100 % | 100 % | +0.0 |
| Apr | 68.1 % | 67.4 % | +0.7 |
| Mei | 62.3 % | 62.9 % | -0.6 |
| Jun | 43.4 % | 43.3 % | +0.1 |
| Jul | 64.1 % | 64.7 % | -0.6 |
| Aug |
| 60.3 % |
| 59.9 % |
| +0.4 |
| Sep | 62.2 % | 62.3 % | -0.1 |
| Okt | 81.8 % | 82 % | -0.2 |
| Nov | 76.8 % | 77 % | -0.2 |
| Dec | 83.9 % | 83.6 % | +0.3 |