Luchtvochtigheid — 2026
| Month | Nissewaard | Maassluis | Difference |
|---|---|---|---|
| Jan | – | – | – |
| Feb | – | – | – |
| Mar | 86.1 % | 84.4 % | +1.7 |
| Apr | 83.8 % | 81.9 % | +1.9 |
| May | 68.8 % | 71 % | -2.2 |
| Jun | 74.6 % | 76.4 % | -1.8 |
| Jul | 68.7 % | 72.4 % | -3.7 |
| Aug |
| 67.6 % |
| 69.7 % |
| -2.1 |
| Sep | 79.4 % | 76.9 % | +2.5 |
| Oct | – | – | – |
| Nov | – | – | – |
| Dec | – | – | – |