Zonneschijn — 2026
| Month | Alphen aan den Rijn | Waddinxveen | Difference |
|---|---|---|---|
| Jan | 108.9 uren | 108.4 uren | +0.5 |
| Feb | 124.9 uren | 120.8 uren | +4.1 |
| Mar | 266.3 uren | 267.4 uren | -1.1 |
| Apr | 30.6 uren | 27.9 uren | +2.7 |
| May | 420.4 uren | 420.4 uren | +0.0 |
| Jun | 420.9 uren | 420.9 uren | +0.0 |
| Jul | 439.2 uren | 439.2 uren | +0.0 |
| Aug | 390 uren | 390 uren | +0.0 |
| Sep | 307.6 uren | 307.7 uren | -0.1 |
| Oct | 231.7 uren | 234.5 uren | -2.8 |
| Nov | – | – | – |
| Dec | – | – | – |