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Draft data. Times, fares and step counts are desk estimates awaiting field checks. Unknown times stay unknown. How we verify

When to go · Belgium

Belgium in September

Great month. Mild, calmer; Heritage Days open private buildings in Brussels and Flanders.

Key facts

Verdict
Great
Crowds
Medium
Belgium
Prices
Medium
Belgium

Verdict

GreatVoykit month rating for Belgium

Mild, calmer; Heritage Days open private buildings in Brussels and Flanders.

Weather in September

  • Flanders, Brussels and the coast · Bruges, Ghent, Antwerp, Brussels, Ostendfine

    Mild, cloudy and damp; summers around 22–25 °C with occasional heatwaves. December Christmas markets offset dark afternoons.

  • Wallonia and the Ardennes · Namur, Dinant, Durbuy, Liège, Bouillonbest weather

    Colder upland winters with some snow; autumn colours in October; hunts close some forest trails from October to December.

  • Brussels19° / 11°, 13 rain days

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 · Brussels

    Comic-themed events, giant inflatable characters and stalls around the centre.

Crowds and prices

Crowds · Belgium
Medium
Prices · Belgium
Medium

What to pack

Nothing unusual for the weather this month.

Build the full packing list for your trip →

Where to go in September

Rated best or good this month

  • Wallonia and the Ardennes

    Best weather of the year (Namur, Dinant, Durbuy, Liège, Bouillon)

  • Brussels

    Mild; good walking.