Zonneschijn — 2023
| Month | Zuidplas | Capelle aan den IJssel | Difference |
|---|---|---|---|
| Jan | – | – | – |
| Feb | – | – | – |
| Mar | 0 uren | – | – |
| Apr | 247.2 uren | – | – |
| May | 355.2 uren | – | – |
| Jun | 392.6 uren | – | – |
| Jul | 361 uren | – | – |
| Aug | 335.9 uren | – | – |
| Sep |
| 281.9 uren |
| – |
| – |
| Oct | 175 uren | – | – |
| Nov | 119.1 uren | – | – |
| Dec | 77.7 uren | – | – |