Luchtvochtigheid — 2026
| Month | Katwijk | Oegstgeest | Difference |
|---|---|---|---|
| Jan | – | – | – |
| Feb | – | – | – |
| Mar | 84.1 % | 82 % | +2.1 |
| Apr | 80.5 % | 77.4 % | +3.1 |
| May | 73.8 % | 73.8 % | +0.0 |
| Jun | 77.8 % | 77.8 % | +0.0 |
| Jul | 74.9 % | 74.9 % | +0.0 |
| Aug |
| 71.5 % |
| 71.5 % |
| +0.0 |
| Sep | 76.7 % | 75.5 % | +1.2 |
| Oct | – | – | – |
| Nov | – | – | – |
| Dec | – | – | – |