Neerslag — 2026
| Month | Voorne aan Zee | Maassluis | Difference |
|---|---|---|---|
| Jan | – | – | – |
| Feb | – | – | – |
| Mar | 4 mm | 6.1 mm | -2.1 |
| Apr | 2.1 mm | 2.4 mm | -0.3 |
| May | 48.9 mm | 39.8 mm | +9.1 |
| Jun | 77.5 mm | 72.8 mm | +4.7 |
| Jul | 13.1 mm | 13.9 mm | -0.8 |
| Aug |
| 49.6 mm |
| 62.4 mm |
| -12.8 |
| Sep | 69.8 mm | 79.8 mm | -10.0 |
| Oct | 92.7 mm | 97.3 mm | -4.6 |
| Nov | – | – | – |
| Dec | – | – | – |