Brussels Weather, When to Go and Climate Information

(Brussels, Brussels-Capital Region, Belgium)

Picture of the cathedral in the sunshineDescribed as having a temperate and maritime climate, the city of Brussels is a popular place to visit at any time of the year. Many tourists choose to stay in Brussels between late spring and early autumn (May to September), when the weather is at its best, although due to the favourable climate, the many attractions can also become a little crowded.

Brussels becomes noticeably quieter when the winter climate is at its coldest, from December to February. The weather at this time is often frosty, with periods of light snow, sleet and rain. In you do choose to visit Brussels during the winter season, be sure to pack some warm clothes and be prepared for shorter daylight hours, with weaker sunshine.

Photo of the Grote Markt in the summer

Seasonal Climate Variations / When to Go

January tends to be the coldest month in Brussels and whilst the climate is chilly and often windy with strong easterly breezes, daytime temperatures rarely fall to freezing and average approximately 5°C / 41°F, dropping to -1°C / 30°F at night.

Overnight frosts soon begin to become a thing of the past in March and the springtime climate is just around the corner. The weather quickly improves and by the middle of April, increased sunshine results in highs of around 15°C / 59°F on the best days. In June, July and August, you can expect to enjoy summer highs of 22°C / 72°F, rising to 25°C / 77°F during the best weather, although rainy spells are always a possibility.

Brussels Weather and Climate Chart (Averages)



5°C / 41°F
-1°C / 30°F


6°C / 43°F
0°C / 32°F


9°C / 48°F
2°C / 36°F


12°C / 54°F
4°C / 39°F


17°C / 63°F
8°C / 46°F


19°C / 66°F
11°C / 52°F


22°C / 72°F
12°C / 54°F


22°C / 72°F
12°C / 54°F


19°C / 66°F
10°C / 50°F


14°C / 57°F
7°C / 45°F


9°C / 48°F
3°C / 37°F


6°C / 43°F
1°C / 34°F