Bewolking — 2026
| Month | Súdwest-Fryslân | Harlingen | Difference |
|---|---|---|---|
| Jan | 83.1 % | – | – |
| Feb | 83.7 % | – | – |
| Mar | 57.7 % | 57.5 % | +0.2 |
| Apr | 78.1 % | 75.4 % | +2.7 |
| May | 54 % | 53.1 % | +0.9 |
| Jun | 59.7 % | 58.7 % | +1.0 |
| Jul | 55.5 % | 56.4 % | -0.9 |
| Aug |
| 50.8 % |
| 49 % |
| +1.8 |
| Sep | 67.3 % | 67.4 % | -0.1 |
| Oct | 68.5 % | 67.9 % | +0.6 |
| Nov | – | – | – |
| Dec | – | – | – |