Zonneschijn — 2025
| Month | Goeree-Overflakkee | Voorne aan Zee | Difference |
|---|---|---|---|
| Jan | 97.5 uren | – | – |
| Feb | 151.9 uren | – | – |
| Mar | 310.3 uren | – | – |
| Apr | 331.7 uren | – | – |
| May | 368.6 uren | – | – |
| Jun | 403.3 uren | – | – |
| Jul | 401.5 uren | – | – |
| Aug | 351.8 uren | – | – |
| Sep | 277.2 uren | – | – |
| Oct | 150.9 uren | – | – |
| Nov | 120.1 uren | – | – |
| Dec | 107.8 uren | – | – |