Zonneschijn — 2026
| Month | Leiden | Zoeterwoude | Difference |
|---|---|---|---|
| Jan | 116.6 uren | – | – |
| Feb | 128.2 uren | – | – |
| Mar | 159.7 uren | 21 uren | +138.7 |
| Apr | 30.9 uren | 31.2 uren | -0.3 |
| May | 423.6 uren | 422 uren | +1.6 |
| Jun | 425.8 uren | 423.7 uren | +2.1 |
| Jul | 441.4 uren | 440.7 uren | +0.7 |
| Aug |
| 393 uren |
| 392.6 uren |
| +0.4 |
| Sep | 309.9 uren | 309.1 uren | +0.8 |
| Oct | 234.6 uren | 237.6 uren | -3.0 |
| Nov | – | – | – |
| Dec | – | – | – |