Bewolking — 2026
| Maand | Westland | Midden-Delfland | Verschil |
|---|---|---|---|
| Jan | 80.1 % | – | – |
| Feb | 81.5 % | – | – |
| Mrt | 57.5 % | 58.4 % | -0.9 |
| Apr | 80.4 % | 81.9 % | -1.5 |
| Mei | 57.1 % | 57.1 % | +0.0 |
| Jun | 59.8 % | 59.8 % | +0.0 |
| Jul | 50.2 % | 50.3 % | -0.1 |
| Aug |
| – |
| – |
| – |
| Sep | – | – | – |
| Okt | – | – | – |
| Nov | – | – | – |
| Dec | – | – | – |