Neerslag — 2026
| Mois | Rotterdam | Barendrecht | Différence |
|---|---|---|---|
| Jan | 84 mm | – | – |
| Fév | 59 mm | – | – |
| Mar | 31.9 mm | 9.2 mm | +22.7 |
| Avr | 3.3 mm | 2.8 mm | +0.5 |
| Mai | 51.3 mm | 67.4 mm | -16.1 |
| Juin | 74.9 mm | 79.3 mm | -4.4 |
| Juil | 9.1 mm | 8.4 mm | +0.7 |
| Aoû |
| – |
| – |
| – |
| Sep | – | – | – |
| Oct | – | – | – |
| Nov | – | – | – |
| Déc | – | – | – |