Luchtvochtigheid — 2025
| Month | Hardinxveld-Giessendam | Sliedrecht | 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 % | – | – |