Bewolking — 2026
| Month | Nissewaard | Midden-Delfland | Difference |
|---|---|---|---|
| Jan | – | – | – |
| Feb | – | – | – |
| Mar | 56.8 % | 58.4 % | -1.6 |
| Apr | 79.4 % | 81.9 % | -2.5 |
| May | 58.2 % | 57.1 % | +1.1 |
| Jun | 60.6 % | 59.8 % | +0.8 |
| Jul | 46.1 % | 47.8 % | -1.7 |
| Aug |
| 53.9 % |
| 53.1 % |
| +0.8 |
| Sep | 73.2 % | 73.4 % | -0.2 |
| Oct | – | – | – |
| Nov | – | – | – |
| Dec | – | – | – |