Luchtvochtigheid — 2025
| Month | Sliedrecht | Hardinxveld-Giessendam | Difference |
|---|---|---|---|
| Jan | – | 89.1 % | – |
| Feb | – | 84.1 % | – |
| Mar | – | 78 % | – |
| Apr | – | 76.3 % | – |
| May | – | 72.5 % | – |
| Jun | – | 73.8 % | – |
| Jul | – | 76.6 % | – |
| Aug | – | 74.7 % | – |
| Sep |
| – |
| 77.8 % |
| – |
| Oct | – | 83.5 % | – |
| Nov | – | 88 % | – |
| Dec | – | 87.1 % | – |