Neerslag — 2026
| Month | Hendrik-Ido-Ambacht | Zwijndrecht | Difference |
|---|---|---|---|
| Jan | – | 76.6 mm | – |
| Feb | – | 98.3 mm | – |
| Mar | 11.1 mm | 59.9 mm | -48.8 |
| Apr | 2.5 mm | 9.8 mm | -7.3 |
| May | 67.6 mm | 94 mm | -26.4 |
| Jun | 69.8 mm | 81.1 mm | -11.3 |
| Jul | 14.9 mm | 13.4 mm | +1.5 |
| Aug |
| 58 mm |
| 70 mm |
| -12.0 |
| Sep | 53.7 mm | 52.1 mm | +1.6 |
| Oct | 88.5 mm | 99.9 mm | -11.4 |
| Nov | – | – | – |
| Dec | – | – | – |