Wind — 2020
| Month | Súdwest-Fryslân | Harlingen | Difference |
|---|---|---|---|
| Jan | 28.8 km/h | 32.3 km/h | -3.5 |
| Feb | 37.1 km/h | 40.5 km/h | -3.4 |
| Mar | 27.6 km/h | 30.3 km/h | -2.7 |
| Apr | 20.6 km/h | 22.9 km/h | -2.3 |
| May | 21.1 km/h | 22.2 km/h | -1.1 |
| Jun | 20.7 km/h | 22.5 km/h | -1.8 |
| Jul | 21.5 km/h | 23.8 km/h | -2.3 |
| Aug | – | – | – |
| Sep | – | – | – |
| Oct | – | – | – |
| Nov | – | – | – |
| Dec | – | – | – |