Luchtvochtigheid — 2026
| Maand | Katwijk | Voorschoten | Verschil |
|---|---|---|---|
| Jan | – | – | – |
| Feb | – | – | – |
| Mrt | 84.1 % | 83.5 % | +0.6 |
| Apr | 80.5 % | 80 % | +0.5 |
| Mei | 73.8 % | 71.2 % | +2.6 |
| Jun | 77.8 % | 75.6 % | +2.2 |
| Jul | 74.9 % | 71.5 % | +3.4 |
| Aug |
| 71.5 % |
| 70 % |
| +1.5 |
| Sep | 79.9 % | 80.6 % | -0.7 |
| Okt | 82.4 % | 83.9 % | -1.5 |
| Nov | – | – | – |
| Dec | – | – | – |