Luchtvochtigheid — 2020
| Month | Vlieland | Harlingen | Difference |
|---|---|---|---|
| Jan | 87.6 % | 88.2 % | -0.6 |
| Feb | 80.4 % | 81 % | -0.6 |
| Mar | 76.8 % | 77.1 % | -0.3 |
| Apr | 75.6 % | 74.6 % | +1.0 |
| May | 78 % | 76.8 % | +1.2 |
| Jun | 80.7 % | 79.5 % | +1.2 |
| Jul | 78.4 % | 77.8 % | +0.6 |
| Aug |
| – |
| – |
| – |
| Sep | – | – | – |
| Oct | – | – | – |
| Nov | – | – | – |
| Dec | – | – | – |