Zonneschijn — 2026
| Month | Zwijndrecht | Ridderkerk | Difference |
|---|---|---|---|
| Jan | 118.4 uren | 116.1 uren | +2.3 |
| Feb | 120.1 uren | 123.9 uren | -3.8 |
| Mar | 269.3 uren | 270.9 uren | -1.6 |
| Apr | 292.3 uren | 29.2 uren | +263.1 |
| May | 413.8 uren | 420.1 uren | -6.3 |
| Jun | 418.8 uren | 420.7 uren | -1.9 |
| Jul | 437.8 uren | 439.4 uren | -1.6 |
| Aug | 389.5 uren | 391.8 uren | -2.3 |
| Sep | 304.9 uren | 306.4 uren | -1.5 |
| Oct | 236.1 uren | 234.5 uren | +1.6 |
| Nov | – | – | – |
| Dec | – | – | – |