Brussels
Belgium
Long-term weather forecast
Long-term weather forecast

August weather forecast and climate
Brussels, Belgium

A beautiful slope garden with several museums in the city of Brussels, Belgium
A beautiful slope garden with several museums in the city of Brussels, Belgium
August, the last month of the summer, in Brussels, is another pleasant month, with temperature in the range of an average low of 13.6°C (56.5°F) and an average high of 22.6°C (72.7°F).

Temperature

In August, the average high-temperature is almost the same as in July - an agreeable 22.6°C (72.7°F). The average low-temperature, in August, is 13.6°C (56.5°F).

Humidity

The average relative humidity in August is 75.5%.

Rainfall

In Brussels, Belgium, during 14.5 rainfall days, 79.3mm (3.1") of precipitation is typically accumulated. In Brussels, during the entire year, the rain falls for 199.6 days and collects up to 852.8mm (33.6") of precipitation.

Snowfall

Throughout the year, there are 23.7 snowfall days.

Daylight

In Brussels, the average length of the day is 14.5h.

Sunshine

In Brussels, Belgium, the average sunshine is 6.1h.

UV index

In Brussels, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from the exposure to the Sun's UV radiation for ordinary individuals.
The average daily UV index of 6 in August transform into the following instructions:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.

What is the temperature in August in Brussels?

In August, in Brussels, the average high-temperature is 22.6°C (72.7°F), and the average low-temperature is 13.6°C (56.5°F).

What is the average humidity in August in Brussels?

In August, the average relative humidity in Brussels is 75.5%.

How much does it rain in Brussels in August?

In Brussels, Belgium, during August, the rain falls for 14.5 days and regularly aggregates up to 79.3mm (3.1") of precipitation.

How many hours of daylight does Brussels have in August?

The average length of the day in August in Brussels, Belgium, is 14.5h.

How long on average sun shines in August in Brussels?

In August, the average sunshine in Brussels is 6.1h.

How high is the UV index in August in Brussels?

In Brussels, the average daily maximum UV index in August is 6. A UV Index reading of 6 to 7 represents a high health threat from the exposure to the Sun's UV rays.
Average temperature in August - Brussels, Belgium
  • Average high temperature in August: 22.6°C

The warmest month (with the highest average high temperature) is July (23°C).
The month with the lowest average high temperature is January (5.7°C).

  • Average low temperature in August: 13.6°C

The month with the highest average low temperature is July (14°C).
Coldest months (with the lowest average low temperature) are January and February (0.7°C).

Average humidity in August - Brussels, Belgium
  • Average humidity in August: 75.5%

The month with the highest relative humidity is December (88.8%).
The month with the lowest relative humidity is April (72.5%).

Average rainfall in August - Brussels, Belgium
  • Average rainfall in August: 79.3mm

The wettest month (with the highest rainfall) is December (81mm).
The driest month (with the lowest rainfall) is April (51.3mm).

Average rainfall days in August - Brussels, Belgium
  • Average rainfall days in August: 14.5 days

The month with the highest number of rainy days is December (19.3 days).
The month with the lowest number of rainy days is July (14.3 days).

Average snowfall days in August - Brussels, Belgium
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (5.9 days).
Months with the lowest number of snowfall days are May, June, July, August, September and October (0 days).

Average daylight in August / Average sunshine in August - Brussels, Belgium
  • Average daylight in August: 14.5h

The month with the longest days is June (Average daylight: 16.4h).
The month with shortest days is December (Average daylight: 8h).

  • Average sunshine in August: 6.1h

The month with most sunshine is July (Average sunshine: 6.5h).
The month with least sunshine is December (Average sunshine: 1.5h).

Average UV index in August - Brussels, Belgium
  • Average UV index in August: 6

The month with the highest UV index is June (UV index 7).
Months with the lowest UV index are January, February, November and December (UV index 1).