Zonneschijn — 2026
| Month | Barendrecht | Ridderkerk | Difference |
|---|---|---|---|
| Jan | – | 116.1 uren | – |
| Feb | – | 123.9 uren | – |
| Mar | 17.5 uren | 270.9 uren | -253.4 |
| Apr | 29.9 uren | 29.2 uren | +0.7 |
| May | 420.1 uren | 420.1 uren | +0.0 |
| Jun | 420.7 uren | 420.7 uren | +0.0 |
| Jul | 439.4 uren | 439.4 uren | +0.0 |
| Aug |
| 391.9 uren |
| 391.8 uren |
| +0.1 |
| Sep | 306.4 uren | 306.4 uren | +0.0 |
| Oct | 236.7 uren | 236.6 uren | +0.1 |
| Nov | – | – | – |
| Dec | – | – | – |