Luchtvochtigheid — 2026
| Month | Maassluis | Nissewaard | Difference |
|---|---|---|---|
| Jan | – | – | – |
| Feb | – | – | – |
| Mar | 84.4 % | 86.1 % | -1.7 |
| Apr | 81.9 % | 83.8 % | -1.9 |
| May | 71 % | 68.8 % | +2.2 |
| Jun | 76.4 % | 74.6 % | +1.8 |
| Jul | 72.4 % | 68.7 % | +3.7 |
| Aug |
| 69.7 % |
| 67.6 % |
| +2.1 |
| Sep | 79.3 % | 78.8 % | +0.5 |
| Oct | 83.2 % | 84.2 % | -1.0 |
| Nov | – | – | – |
| Dec | – | – | – |