Bewolking — 2026
| Maand | Heerenveen | Opsterland | Verschil |
|---|---|---|---|
| Jan | – | – | – |
| Feb | – | – | – |
| Mrt | 72.4 % | 71 % | +1.4 |
| Apr | 74.2 % | 75.4 % | -1.2 |
| Mei | 56.4 % | 56.4 % | +0.0 |
| Jun | 62.4 % | 62.4 % | +0.0 |
| Jul | 58.3 % | 58.3 % | +0.0 |
| Aug |
| 53 % |
| 53 % |
| +0.0 |
| Sep | 69.7 % | 71 % | -1.3 |
| Okt | – | – | – |
| Nov | – | – | – |
| Dec | – | – | – |