August Weather in Brussels, Canada

Last updated: June 18, 2025

In August, the average temperature in Brussels, Canada is a pleasant 20°C (68°F). Expect a range where the minimum dips to 4°C (40°F) and the maximum peaks at 30°C (87°F). With 126 mm (4.9 in) of precipitation spread over 15 days, be prepared for some wet weather. The average humidity sits at a comfortable 80%, creating a serene atmosphere for your visit.

August Temperature in Brussels

In August, in Brussels, the average temperature is a pleasant 20°C (68°F). The maximum can reach a warm 30°C (87°F), while the minimum can dip as low as 4°C (40°F). This makes it an ideal time for travelers to enjoy a variety of outdoor activities without extreme heat or cold.

August Weather in Brussels: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Brussels, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Brussels, August typically has an average temperature of 20°C (68°F), with highs reaching up to 30°C (87°F) and lows dropping to around 4°C (40°F).

Data source: Temperature data for Brussels generated using information from the Copernicus Climate Change Service.

August Precipitation in Brussels

In Brussels in August, the precipitation amount is 126 mm (4.9 in) over the course of 15 days.

August Precipitation Trends in Brussels

The chart displays monthly precipitation patterns in Brussels, with values for each month alongside August’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August’s conditions compare to those of other months. In Brussels, August typically receives around 126 mm (4.9 inches) of precipitation spread over approximately 15 days.

Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

August Humidity in Brussels

In Brussels in August, humidity is 80%. With an average temperature of 20°C (68°F), this humidity feels like traveling through a warm, dense blanket that clings to your skin, making you feel both sticky and lethargic as you explore the sights.

August Average Humidity in Brussels

This chart illustrates the average monthly humidity levels in Brussels, with August’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In August, average humidity in Brussels is approximately 80%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Brussels

In Brussels in August, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Brussels.

Maximum UV Index Levels in Brussels for August

The chart shows the monthly maximum UV Index (UVI) for Brussels in August, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In August, the maximum UV index in Brussels typically reaches 9, which falls under the very high exposure category.

Data source: Brussels August UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How August Weather in Brussels Compares to Other Months

Weather in Brussels varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Brussels, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Brussels, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-5°C (23°F)	77 mm (3.0 inches)	90%	low
February Weather	-5°C (24°F)	87 mm (3.4 inches)	90%	moderate
March Weather	0°C (32°F)	74 mm (2.9 inches)	87%	moderate
April Weather	5°C (42°F)	105 mm (4.1 inches)	87%	very high
May Weather	13°C (55°F)	102 mm (4.0 inches)	82%	very high
June Weather	18°C (65°F)	98 mm (3.9 inches)	81%	very high
July Weather	21°C (70°F)	86 mm (3.4 inches)	79%	very high
August Weather	20°C (68°F)	126 mm (4.9 inches)	80%	very high
September Weather	16°C (61°F)	98 mm (3.9 inches)	81%	high
October Weather	10°C (50°F)	123 mm (4.8 inches)	84%	moderate
November Weather	2°C (36°F)	103 mm (4.1 inches)	88%	moderate
December Weather	-2°C (30°F)	83 mm (3.3 inches)	87%	low