Neerslag — 2026
| Maand | Nissewaard | Maassluis | Verschil |
|---|---|---|---|
| Jan | – | – | – |
| Feb | – | – | – |
| Mrt | 5 mm | 6.1 mm | -1.1 |
| Apr | 2 mm | 2.4 mm | -0.4 |
| Mei | 56.9 mm | 39.8 mm | +17.1 |
| Jun | 79.2 mm | 72.8 mm | +6.4 |
| Jul | 13.3 mm | 13.9 mm | -0.6 |
| Aug |
| 52.3 mm |
| 62.4 mm |
| -10.1 |
| Sep | 28.7 mm | 40 mm | -11.3 |
| Okt | – | – | – |
| Nov | – | – | – |
| Dec | – | – | – |