Zonneschijn — 2026
| Month | Kaag en Braassem | Leiderdorp | Difference |
|---|---|---|---|
| Jan | – | – | – |
| Feb | – | – | – |
| Mar | 19.6 uren | 21 uren | -1.4 |
| Apr | 31.7 uren | 32.8 uren | -1.1 |
| May | 422.2 uren | 423.6 uren | -1.4 |
| Jun | 423.6 uren | 425.8 uren | -2.2 |
| Jul | 440.5 uren | 441.4 uren | -0.9 |
| Aug |
| 390.7 uren |
| 393 uren |
| -2.3 |
| Sep | 308.8 uren | 310 uren | -1.2 |
| Oct | 235.3 uren | 236.3 uren | -1.0 |
| Nov | – | – | – |
| Dec | – | – | – |