Zonneschijn — 2023
| Month | Watermaal-Bosvoorde | Oudergem | Difference |
|---|---|---|---|
| Jan | – | – | – |
| Feb | – | – | – |
| Mar | 133.8 uren | 131.4 uren | +2.4 |
| Apr | 215.5 uren | 224.2 uren | -8.7 |
| May | 330.4 uren | 342.1 uren | -11.7 |
| Jun | 387.4 uren | 399 uren | -11.6 |
| Jul | 337.7 uren | 348.9 uren | -11.2 |
| Aug |
| 312.3 uren |
| 323 uren |
| -10.7 |
| Sep | 277.9 uren | 289.3 uren | -11.4 |
| Oct | 197.2 uren | 207.8 uren | -10.6 |
| Nov | 105.2 uren | 114.6 uren | -9.4 |
| Dec | 68.2 uren | 71.6 uren | -3.4 |