Brussels Rainfall & Precipitation: Monthly Averages and Year-Round Insights

This page shows the average amount of rainfall per month in Brussels. The numbers are calculated over a 30-year period to provide a reliable average. Now, let’s break down all the details for a clearer picture.

On average, Brussels receives a reasonable amount of rain/snowfall, with an annual precipitation of 814 mm.

Monthly Precipitation Levels

The average number of days each month with precipitation (> 0.2 mm)

Year-round, Brussels has a balanced climate with minimal variation in precipitation. The difference between the wettest month, August, with 79 mm, and the driest month, April, with 54 mm, is minimal.

August, the city’s wettest month, has a maximum daytime temperature of 24°C. During the driest month April you can expect a temperature of 16°C. For more detailed insights into the city’s temperatures, visit our Brussels Temperature page.

Annual Precipitation in Belgium

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.

Amsterdam Precipitation Compared World Wide

Brussels’s average annual precipitation is 814 mm. Let’s compare this to some popular worldwide tourist destinations:

Seville, Spain, experiences 541 mm of rainfall annually, with wet winters and dry summers typical of southern Spain.

In Shanghai, China, the annual average precipitation is 1347 mm, with a humid subtropical climate.

In Tokyo, Japan, the average annual precipitation is 1528 mm, with significant summer rains due to typhoon season.

Singapore, situated near the equator, gets 2581 mm of rainfall annually, with no distinct dry season and consistent monthly precipitation.

How is Precipitation Measured?

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.

Sea vs. Land Precipitation

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.

For more detailed information about Brussels’s weather, including sunshine hours, humidity levels, and temperature data, visit our Brussels Climate page.