Neerslag — 2026
| Month | Tholen | Goeree-Overflakkee | Difference |
|---|---|---|---|
| Jan | – | 107.1 mm | – |
| Feb | – | 76.7 mm | – |
| Mar | 2.2 mm | 63.3 mm | -61.1 |
| Apr | 2 mm | 1.6 mm | +0.4 |
| May | 69.9 mm | 48.9 mm | +21.0 |
| Jun | 82.6 mm | 77.6 mm | +5.0 |
| Jul | 9.7 mm | 13.1 mm | -3.4 |
| Aug |
| 55.6 mm |
| 49.4 mm |
| +6.2 |
| Sep | 25.5 mm | 30.1 mm | -4.6 |
| Oct | – | – | – |
| Nov | – | – | – |
| Dec | – | – | – |