Zonneschijn — 2026
| Month | Heerenveen | Opsterland | Difference |
|---|---|---|---|
| Jan | – | – | – |
| Feb | – | – | – |
| Mar | 13.9 uren | 12 uren | +1.9 |
| Apr | 33.7 uren | 33.1 uren | +0.6 |
| May | 425.3 uren | 425.3 uren | +0.0 |
| Jun | 429.1 uren | 429.1 uren | +0.0 |
| Jul | 434.1 uren | 434.1 uren | +0.0 |
| Aug |
| 391.4 uren |
| 391.4 uren |
| +0.0 |
| Sep | 88.3 uren | 83.3 uren | +5.0 |
| Oct | – | – | – |
| Nov | – | – | – |
| Dec | – | – | – |