When to go · Brussels
Brussels in September
Good month. Mild; good walking.
Key facts
- Verdict
- Good
- Temperature
- 19° / 11°
- average high / low
- Rain days
- 13
- Crowds
- Medium
- Belgium overall
- Prices
- Medium
- Belgium overall
Verdict
Mild; good walking.
Weather in September
- BrusselsHighs around 19 °C, lows around 11 °C, rain on about 13 days
- Flanders, Brussels and the coast, Belgium · Bruges, Ghent, Antwerp, Brussels, Ostendfine
Mild, cloudy and damp; summers around 22–25 °C with occasional heatwaves. December Christmas markets offset dark afternoons.
Autumn season
The Comic Strip Festival and crisp walking weather before the grey sets in.
Watch: Rain days climb back up through November.
Festivals and holidays
Dates as our data lists them. Moving holidays (lunar and Islamic calendars, Easter) shift every year: check the date for your year before you build a trip on it.
Brussels Comic Strip Festival check
Weekend in September · Centre, near the Comic Strip Center
Comic-themed events, giant inflatable characters and stalls around the centre.
Crowds and prices
- Crowds · Belgium overall
- Medium
- Prices · Belgium overall
- Medium
Belgium overall: Mild, calmer; Heritage Days open private buildings in Brussels and Flanders.
What to pack
- A warm layer for the evenings
- A rain jacket or umbrella and shoes that dry fast