Brussels in September
good · a good time to go
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The numbers
| Daily high | 20°C |
|---|---|
| Nightly low | 12°C |
| Feels like, afternoon | 19°C |
| Rainy days | 9 · 63 mm |
| Humidity | 76% |
| Sunshine | 8.8 h/day |
| Daylight | 12.6 h/day |
| Crowds | 100 / 100, higher is quieter |
Ten-year averages for this calendar month. A rainy day is one with at least 2 mm.
What to pack
- A packable rain jacket for the 9 or so rainy days.
- Sun protection: about 9 hours of sunshine a day.
- Humidity averages 76%; breathable fabrics dry faster.
Each line is a threshold over the ten-year figures above, not advice from anywhere else.
Before you go
| Cost of living | moderate — prices run about 81% of the United States' (World Bank, 2025) |
|---|---|
| Currency | Q4916 |
| Languages | Dutch, French, German |
| Plugs | Type C and E, 230 V |
| Driving | On the right |
| Emergency | 112, 100, 101, 102 |
| Calling code | +32 |
| Travel advice | No advice against travel — UK Foreign Office, updated 2026-09-17 |
Health. Before you travel check that: your destination can provide the healthcare you may need you have appropriate travel insurance for local treatment or unexpected medical evacuation This is particularly important if you have a health condition or are pregnant. Emergency medical number Dial 112 and ask for an ambulance. Contact your insurance or medical assistance company quickly if you’re referred to … More.
Facts from Wikidata (CC0), the UK Foreign Office (Open Government Licence) and the World Bank, refreshed 2026-09-23. The advisory is written for British travellers; entry rules depend on your passport.
September elsewhere
In September from
The other months at Brussels
- January avoid
- February ok
- March ok
- April good
- May good
- June sweet spot
- July sweet spot
- August sweet spot
- September
- October ok
- November avoid
- December avoid
← August · All twelve months at Brussels · October →
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