Neerslag — 2026
| Month | Hoeilaart | Watermaal-Bosvoorde | Difference |
|---|---|---|---|
| Jan | 75.1 mm | 75.1 mm | +0.0 |
| Feb | 114.4 mm | 114.4 mm | +0.0 |
| Mar | 71.3 mm | 70.3 mm | +1.0 |
| Apr | 8.9 mm | 9.8 mm | -0.9 |
| May | 120.6 mm | 120.7 mm | -0.1 |
| Jun | 68.8 mm | 68.9 mm | -0.1 |
| Jul | 13.6 mm | 13.6 mm | +0.0 |
| Aug | 78.3 mm | 78.3 mm | +0.0 |
| Sep | 38.4 mm | 38.2 mm | +0.2 |
| Oct | 100.7 mm | 94.3 mm | +6.4 |
| Nov | – | – | – |
| Dec | – | – | – |