Neerslag — 2026
| Mois | Vlaardingen | Maassluis | Différence |
|---|---|---|---|
| Jan | 96.9 mm | – | – |
| Fév | 63.3 mm | – | – |
| Mar | 35.5 mm | 6.1 mm | +29.4 |
| Avr | 2.7 mm | 2.4 mm | +0.3 |
| Mai | 39.8 mm | 39.8 mm | +0.0 |
| Juin | 72.7 mm | 72.8 mm | -0.1 |
| Juil | 9.1 mm | 8.9 mm | +0.2 |
| Aoû |
| – |
| – |
| – |
| Sep | – | – | – |
| Oct | – | – | – |
| Nov | – | – | – |
| Déc | – | – | – |