Temperatuur — 2025
| Month | Voorne aan Zee | Goeree-Overflakkee | Difference |
|---|---|---|---|
| Jan | – | 4.1 °C | – |
| Feb | – | 4 °C | – |
| Mar | – | 7.1 °C | – |
| Apr | – | 11.4 °C | – |
| May | – | 14 °C | – |
| Jun | – | 18 °C | – |
| Jul | – | 18.7 °C | – |
| Aug | – | 18.6 °C | – |
| Sep |
| – |
| 15.5 °C |
| – |
| Oct | – | 12.6 °C | – |
| Nov | – | 8.5 °C | – |
| Dec | – | 6.3 °C | – |