Brussels Monthly Rainfall & Precipitation
This page shows both the average monthly rainfall and the number of rainy days in Brussels, Brussels Region, Belgium. This average is based on long-term data collected between 1990 and 2020. Let's now guide you through the details for a complete overview.
Generally, Brussels receives mid-range precipitation levels, with 814 mm (32 in) annually.
Monthly Precipitation Levels
The average number of days each month with precipitation (> 0.2 mm (0.01 in))
Despite minor fluctuations, Brussels enjoys fairly consistent precipitation throughout the year. In August, you can expect around 79 mm (3.1 in) of precipitation, while in April, Brussels receives about 54 mm (2.1 in).
August, the wettest month, has a maximum daytime temperature of 24°C (75°F). The city receives 198 hours of sunshine in this period. During the driest month April you can expect a temperature of 16°C (61°F). For more detailed insights into the city's temperatures, visit our Brussels Temperature page.
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in May
Explore Brussels's Historical Precipitation: 1976-2026
Browse day-by-day precipitation records for Brussels spanning 51 years. Select any month and year to see actual rainfall and snowfall recorded on each day.
Annual Rainfall in Belgium: City Comparison
The map below shows the annual precipitation across Belgium. You can also select the different months in case you are interested in a specific month.
heavy rainfall
high
moderate
low
almost none
Brussels vs World: Rainfall Compared
Brussels's average annual precipitation is 814 mm (32 in). Let's compare this to some popular worldwide tourist destinations:
In Toronto, Canada, annual precipitation averages 964 mm (38 in), with snowy winters and rainy summers.
Meanwhile, Buenos Aires, Argentina, enjoys a humid subtropical climate with 1000 mm (39 in) of annual rainfall, mostly in the summer.
In Brisbane, Australia, the annual precipitation is 979 mm (39 in), making it wetter than Sydney.
Mumbai, India, experiences a tropical monsoon climate with 1860 mm (73 in) of annual rainfall, with the majority of precipitation happening during the monsoon season from June to September.
Precipitation amounts are measured using specific gauges installed at weather stations, collecting both rain and snow and any other type of precipitation. Rainfall is measured directly in millimeters, while that from snow and ice is obtained by melting it. Automated systems often incorporate heaters to make this easier.
Information from these stations is transmitted via Wi-Fi, satellite, GPS, or telephone connections to central monitoring networks. This information is immediately updated and integrated into weather models and forecasts.
The proximity of a location to a large body of water can significantly affect its rainfall patterns:
- Ocean Influence: Coastal regions typically receive more rainfall due to the presence of moisture-laden winds from the ocean. These regions tend to have more humid climates and experience more frequent precipitation, especially in winter.
- Continental Climates: Areas further from the sea, such as inland or continental regions, experience less frequent rainfall and more extreme seasonal variations in precipitation.
- Mawsynram in India is noted as being the wettest place on earth, with over 11 meters (36 feet) of rain falling every year.
- In contrast, Antofagasta in Chile is among the driest places on the planet, getting less than 0.1mm (0.004 inches) per year, with some years recording virtually no rainfall.
- Nearly 1,650 thunderstorm cells are estimated over the planet at any given time.
For more detailed information about Brussels's weather, including sunshine hours, humidity levels, and temperature data, visit our Brussels Climate page.
