Weather Trends in Brussels, BelgiumWeather Trends in Brussels,
Belgium

Brussels is characterized by a temperate oceanic climate featuring mild summers and cool, damp winters. WeatherBox data indicates that the average daily temperature during the summer months is 17.9°C (64.2°F), with July highs typically reaching 22.7°C (72.9°F). In contrast, the colder season brings low temperatures averaging 4.3°C (39.7°F), though the mercury rarely falls below -4.1°C (24.6°F). This moderate thermal range prevents extreme conditions, as summer heat seldom exceeds 28.3°C (82.9°F).

Precipitation remains a constant factor, contributing to a total annual accumulation of 833 mm (33 in). Rainfall is most intense in late summer, with the heaviest precipitation occurring in August at an average of 80 mm (3 in). Even during the driest month of April, the region receives 50 mm (2 in) of rain. High humidity persists year-round, peaking at 88.5, often accompanied by significant cloudiness; November sees overcast skies 87.5 of the time.

Solar duration fluctuates significantly throughout the year, ranging from minimal sunshine in December with only 18.1 hours to a much brighter 261.4 hours in July. When the sun is strongest, the average peak UV Index is 5.0. Airflow is generally steady with prevailing winds from the Southwest, and wind speeds rarely exceed 35.2 km/h (21.9 mph). Visit WeatherBox to explore advanced weather charts and analyze the full climate data for this location.