Weather · Brussels, Belgium
Brussels Weather in September
Brussels in September runs 21°C / 13°C with 67mm of rain, one of the best months to visit.
Avg high
21°C
70°F
Avg low
13°C
55°F
Rainfall
67mm
#7 wettest of 12
What to pack
Layers, plus a jacket for mornings and nights. Rain is unlikely to interrupt your plans.
Timing a trip around the weather? A Local Friend in Brussels builds it around the season for you.