Luchtvochtigheid — 2026
| Month | Katwijk | Wassenaar | Difference |
|---|---|---|---|
| Jan | – | – | – |
| Feb | – | – | – |
| Mar | 84.1 % | 85 % | -0.9 |
| Apr | 80.5 % | 82 % | -1.5 |
| May | 73.8 % | 77.5 % | -3.7 |
| Jun | 77.8 % | 80.8 % | -3.0 |
| Jul | 74.9 % | 78.4 % | -3.5 |
| Aug |
| 71.5 % |
| 73.8 % |
| -2.3 |
| Sep | 76.4 % | 77.2 % | -0.8 |
| Oct | – | – | – |
| Nov | – | – | – |
| Dec | – | – | – |