Neerslag — 2026
| Month | Braine-l'Alleud | Waterloo | Difference |
|---|---|---|---|
| Jan | 86.3 mm | 75 mm | +11.3 |
| Feb | 118.6 mm | 113.8 mm | +4.8 |
| Mar | 49 mm | 50.2 mm | -1.2 |
| Apr | 10.8 mm | 9.7 mm | +1.1 |
| May | 93.2 mm | 120.6 mm | -27.4 |
| Jun | 70.9 mm | 68.8 mm | +2.1 |
| Jul | 14.3 mm | 13.6 mm | +0.7 |
| Aug |
| 78.6 mm |
| 78.3 mm |
| +0.3 |
| Sep | 38.7 mm | 38.3 mm | +0.4 |
| Oct | 91.6 mm | 97.8 mm | -6.2 |
| Nov | – | – | – |
| Dec | – | – | – |