Bewolking — 2026
| Maand | Midden-Delfland | Maassluis | Verschil |
|---|---|---|---|
| Jan | – | – | – |
| Feb | – | – | – |
| Mrt | 58.4 % | 60.1 % | -1.7 |
| Apr | 81.9 % | 80.7 % | +1.2 |
| Mei | 57.1 % | 57.1 % | +0.0 |
| Jun | 59.8 % | 59.8 % | +0.0 |
| Jul | 47.8 % | 47.8 % | +0.0 |
| Aug |
| 53.1 % |
| 53.1 % |
| +0.0 |
| Sep | 73.4 % | 73.2 % | +0.2 |
| Okt | – | – | – |
| Nov | – | – | – |
| Dec | – | – | – |