Weather in Belgium in September
September in Belgium is mild enough that walking is the default. This is a city-break month more than a sea-holiday month.
A country pin in September is a warning: one region of Belgium will not match another. Use a city page if you already know where you are going. Compared with July and January, September sits in the middle of Belgium's year.
- Average temp
- 15°C
11–20°C
- Rainfall
- 67 mm
Showers likely
- Sunshine
- 5.1 h
hours per day
What to expect
Daytime
Mild afternoons in Belgium are the prize in September. You can eat outside on the good days. You still want something for the breeze.
This is walking weather. Shade is useful, not essential the way it is in the hot months. A long outdoor day is a reasonable plan.
Rain
September is on the drier side of the year in Belgium. Showers are possible. They do not define the month.
A shell that lives in the bag is enough. This is not December, and it should not be packed as if it were.
Evening
Evenings are cooler. A layer helps after sunset.
What to pack
Rain jacket
A layer for cooler evenings
Where to stay in Belgium
Featured stays on trip1. Dates are a starting point for September.
Travel guides for Belgium
What to read before you book.
Average weather in Belgium
TemperatureRainfall
Similar weather in September
Other destinations whose September averages sit close to this one.
Check another month
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FAQs about Belgium
Climate averages for Belgium, 1991–2020.
The best time to visit Belgium is between May and October, the most comfortable stretch of the year on these averages.
July is the hottest month, with an average around 19°C.
August is the wettest month, with about 90 mm of rain.
No. These are 1991–2020 climate normals from Meteostat, not a live forecast. Actual weather in any given week can differ.
