Bewolking — 2023
| Maand | Zwijndrecht | Ridderkerk | Verschil |
|---|---|---|---|
| Jan | – | – | – |
| Feb | – | – | – |
| Mrt | 84.7 % | 100 % | -15.3 |
| Apr | 67.9 % | 68.1 % | -0.2 |
| Mei | 60.6 % | 62.3 % | -1.7 |
| Jun | 43.4 % | 43.4 % | +0.0 |
| Jul | 65.8 % | 64.1 % | +1.7 |
| Aug |
| 61.2 % |
| 60.3 % |
| +0.9 |
| Sep | 59.4 % | 62.2 % | -2.8 |
| Okt | 77.6 % | 81.8 % | -4.2 |
| Nov | 75.1 % | 76.8 % | -1.7 |
| Dec | 83.3 % | 83.9 % | -0.6 |