Climate averages 1991–2020
Weather in Belgium in September
In September, average daytime highs across the 18 cities listed in Belgium range from 18.5°C in Brugge to 19.3°C in Mechelen. Monthly rainfall ranges from 52 mm in Mechelen to 62 mm in Brugge.
Long-term climate patterns, not a forecast for a particular trip.
City by city
September in Belgium
| City | Average highHigh / low | Average low | Rainfall mm | Rain days |
|---|---|---|---|---|
| Brussels | 19.2°C11.7°C | 11.7°C | 54 | 10.5 |
| Antwerp | 19.0°C12.0°C | 12.0°C | 57 | 10.9 |
| Gent | 19.0°C12.0°C | 12.0°C | 56 | 10.5 |
| Charleroi | 18.7°C11.3°C | 11.3°C | 57 | 10.7 |
| Liège | 19.0°C11.6°C | 11.6°C | 62 | 10.8 |
| Anderlecht | 19.3°C11.8°C | 11.8°C | 54 | 10.5 |
| Schaerbeek | 19.2°C11.7°C | 11.7°C | 56 | 10.8 |
| Brugge | 18.5°C13.0°C | 13.0°C | 62 | 10.7 |
| Namur | 19.0°C11.5°C | 11.5°C | 58 | 10.9 |
| Leuven | 19.2°C11.7°C | 11.7°C | 53 | 10.4 |
| Mons | 19.1°C11.6°C | 11.6°C | 52 | 10.1 |
| Ixelles | 18.9°C11.4°C | 11.4°C | 54 | 10.5 |
| Deurne | 19.1°C11.9°C | 11.9°C | 57 | 10.9 |
| Hasselt | 19.1°C11.6°C | 11.6°C | 58 | 10.5 |
| Aalst | 19.2°C11.9°C | 11.9°C | 55 | 10.9 |
| Mechelen | 19.3°C11.8°C | 11.8°C | 52 | 10.2 |
| La Louvière | 18.7°C11.1°C | 11.1°C | 54 | 10.5 |
| Kortrijk | 19.0°C12.0°C | 12.0°C | 54 | 10.2 |
A rain day is a local calendar day with at least 1 mm of precipitation.