Bewolking — 2026
| Month | Opmeer | Koggenland | Difference |
|---|---|---|---|
| Jan | – | – | – |
| Feb | – | – | – |
| Mar | 57.2 % | 56.5 % | +0.7 |
| Apr | 82 % | 81.7 % | +0.3 |
| May | 56.6 % | 56.6 % | +0.0 |
| Jun | 60 % | 60 % | +0.0 |
| Jul | 54.9 % | 54.9 % | +0.0 |
| Aug |
| 51.1 % |
| 51.1 % |
| +0.0 |
| Sep | 68.9 % | 68.9 % | +0.0 |
| Oct | 67.7 % | 67 % | +0.7 |
| Nov | – | – | – |
| Dec | – | – | – |