Planning a trip to Brussels in August? You are in luck! The weather is generally good, with an average maximum temperature of +73°F and approximately 6 sunny days. Just be prepared for some rain, as there are usually around 8 rainy days and 67 mm of precipitation. Expect good weather and pack accordingly to enjoy the outdoors. Search flightsin one click on Avionero.
Good to know:
August is usually the hottest month of the year in Brussels;
Average weather
☀️
+73°F
Avg. max. temperature
+43°F
Min.
+97°F
Max.
67 mm
Total precipitation
73%
Avg. humidity
2 m/s
Avg. wind
6 ☀️
Sunny Days
17 ⛅️
Cloudy
8 🌦
Rainy
Our opinion: Brussels has good weather in August.
Average temperature in Brussels in August
Here are the expected maximum, average and minimum temperatures in Brussels for August based on the historical data.
Last Year
Historical Data
The temperature in August is +81°F on average, with a range between a maximum of +91°F during the day and a minimum of +46°F at night.
The average maximum temperature goes down 4% by the end of the month, compared with the beginning of the month, from +79°F to +77°F.
Is Brussels warm or cold in August?
Brussels is typically warm in August.
Maximum temperatures go down compared to the previous month from +73°F to +73°F. The minimum temperature also goes up from +57°F to +57°F.
It’s generally warm, but pack a long-sleeve shirt for evenings.
August is the hottest month in Brussels, here is the comparison with other months:
Climate in Brussels in August
Brussels weather looks like this, on average, in August and the surrounding months.
July
August
September
Avg. temperature
+73°F
+73°F
+66°F
Min. temperature
+41°F
+43°F
+37°F
Max. temperature
+104°F
+97°F
+95°F
Rainfall
68 mm
67 mm
65 mm
Wind
2 m/s
2 m/s
2 m/s
Humidity
72%
73%
77%
Air pressure
1015 HPa
1015 HPa
1015 HPa
Sunny days
7
6
6
Cloudy days
16
17
17
Rainy days
8
8
7
Snowy days
0
0
0
August weather is still as good as in July.The temperature levels stay the same in the area of +73°F for average maximum temperature during the day.As August arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 68 mm to 67 mm.Humidity rises from 72% to 73%.The average wind speed doesn’t change much during August, staying around 2 m/s.The days becoming less sunny, going from 7 sunny days in July to 6 in August.
Next month (September) brings a further decline in the weather.
Wind speed in Brussels in August based on historical data.
Last Year
Historical Data
The average wind speed is 2 m/s getting up to 3 m/s which is a light breeze; barely moving the tree leaves.
The average wind speed in Brussels is gradually increasing during August, going from 2 m/s to 3 m/s over the course of the month.
Rain
Amount of rainfall in mm during August in Brussels based on historical data.
Last Year
Historical Data
Typically, there is a 29% chance of rain on an average day in August, with total rainfall of approximately 38 mm. The maximum amount of rainfall per day is around 13 mm, which is considered light rain.On average, there are about 9 rainy days during August, so prepare to bring an umbrella.
August is one of the rainiest months in Brussels, here is a comparison with other months, total mm:
Brussels wettest month is June, where a typical day has a 27% chance of precipitation and 71 mm of rainfall per day. April, on the other hand, is the driest month with a mere 23% chance of precipitation and 50 mm of rainfall per day.
How was the weather last August in Brussels?
This is the weather in Brussels in August 2023:
1 August
☀️
+79°F
2 August
☀️
+85°F
3 August
☀️
+92°F
4 August
☀️
+83°F
5 August
🌧️
+73°F
6 August
☀️
+73°F
7 August
☀️
+78°F
8 August
☀️
+78°F
9 August
☀️
+83°F
10 August
☀️
+88°F
11 August
☀️
+90°F
12 August
☀️
+91°F
13 August
☀️
+90°F
14 August
☀️
+91°F
15 August
☀️
+83°F
16 August
☀️
+83°F
17 August
🌧️
+75°F
18 August
☁️
+80°F
19 August
☀️
+77°F
20 August
☀️
+76°F
21 August
☀️
+75°F
22 August
☀️
+81°F
23 August
☀️
+84°F
24 August
☀️
+89°F
25 August
☀️
+92°F
26 August
☁️
+74°F
27 August
☀️
+72°F
28 August
☀️
+76°F
29 August
☀️
+75°F
30 August
☀️
+81°F
31 August
☀️
+78°F
In August 2023 Brussels had 27 sunny days, 2 cloudy days, and 2 rainy days. The average maximum temperature was +81°F, with an absolute maximum of +91°F and a minimum of +72°F. The average humidity was 63%, with a maximum of 96% and a minimum of 23%. The average wind speed was 2 m/s, with a maximum of 7 m/s and a minimum of 0 m/s.
Are you planning a trip in August?
Climate Change Over the Years
This is how Brussels climate has changed over the last 43 years.
The climate in Brussels in August has changed quite a lot over the last 43 years.
The average temperature was the lowest in 2006 (+69°F) and the highest in 2022 (+84°F). The driest year was 1991 with only 9 mm of rainfall, and the wettest year was 2010 with 170 mm.
FAQ
Frequently asked questions about the weather in Brussels in August:
Is August a good time to visit Brussels?
August is a really good time to go to Brussels. The weather is nice so plan your packing around outdoor activities and exploring. Check out other good time to visit Brussels.
Can you sunbathe in Brussels in August?
August is warm in Brussels. You may enjoy some beach or pool time in the day, but pack something a tad warmer for the evening.
Is Brussels rainy in August?
Brussels is often rainy in August. You may get a bit damp when outside, so pack an umbrella, and maybe even a raincoat.
Is it sunny in Brussels in August?
Usually, it’s not very sunny in Brussels in August, often it’s pretty cloudy. Pack for any eventuality; layering can help reduce the number of bulky items needed.
Other cities in Belgium
Check out the weather for other cities in Belgium.
For this page, we’ve looked at the typical weather in Brussels, based on historical hourly weather data from January 1, 1979, to December 31, 2022.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.