Brussels weather at a glance
Hottest
July · 23°C
Coldest
January · 1°C
Wettest
December · 81 mm
Best season
May, June, July, August, September
When is the best time to visit Brussels
Brussels has an oceanic climate. In summer (Jun–Aug) the average high is around 22°C, while in winter (Dec–Feb) it sits near 6°C by day and 1°C at night. The hottest month is July (23°C) and the coldest is January (1°C).
The best time to visit is May, June, July, August, September, when conditions are most comfortable for sightseeing and walking around. November, December, January, February can be less comfortable — keep that in mind when planning.
Brussels temperatures & rainfall by month
Long-term monthly averages (climate normals).
| Month | High | Low | Daily range | Rain |
|---|---|---|---|---|
| Jan | 6° | 1° | 76 mm | |
| Feb | 7° | 1° | 63 mm | |
| Mar | 11° | 3° | 70 mm | |
| Apr | 14° | 5° | 51 mm | |
| May | 18° | 9° | 67 mm | |
| Jun● | 21° | 12° | 72 mm | |
| Jul | 23° | 14° | 74 mm | |
| Aug | 23° | 14° | 76 mm | |
| Sep | 19° | 11° | 69 mm | |
| Oct | 15° | 8° | 75 mm | |
| Nov | 9° | 4° | 77 mm | |
| Dec | 6° | 2° | 81 mm |
Seasons in Brussels
Spring
14° / 6°
cool
Rain: ~63 mm/mo
Summer
22° / 13°
mild
Rain: ~74 mm/mo
Autumn
14° / 8°
cool
Rain: ~74 mm/mo
Winter
6° / 1°
cold
Rain: ~73 mm/mo
When to visit Brussels
✓ Best months
May, June, July, August, September
~ Less comfortable
November, December, January, February
What to pack
- A warm jacket and layers — winter mornings and evenings are chilly.
- A rain jacket or a compact umbrella — rain is frequent.
- Comfortable walking shoes — you'll be on your feet around the centre.