Bewolking — 2026
| Month | Goeree-Overflakkee | Voorne aan Zee | Difference |
|---|---|---|---|
| Jan | 78.7 % | – | – |
| Feb | 82.7 % | – | – |
| Mar | 55.3 % | 61.7 % | -6.4 |
| Apr | 78.9 % | 77.5 % | +1.4 |
| May | 57 % | 57 % | +0.0 |
| Jun | 59.5 % | 59.5 % | +0.0 |
| Jul | 45 % | 45 % | +0.0 |
| Aug |
| 53.1 % |
| 53.1 % |
| +0.0 |
| Sep | 72.3 % | 72.2 % | +0.1 |
| Oct | 64.6 % | 63.8 % | +0.8 |
| Nov | – | – | – |
| Dec | – | – | – |