Brussels Weather in August
August in Brussels typically sees daytime highs of 24°C (75°F) and nighttime lows of 14°C (57°F). As the wettest month of the year, expect more rainfall than other months. It falls within the summer season.
Rainfall in Brussels in August
This is the wettest month of the year, so having an umbrella ready is a smart choice. You can expect rain on around 16 days based on historical patterns, with 79 mm (3.1 in) average for the month. Expect plenty of grey, overcast days rather than intense storms. The rain rarely amounts to much on any given day.
Temperature in Brussels in August
August is one of the better months to visit Brussels. Expect 24°C (75°F) during the day and 14°C (57°F) at night. This month falls in the summer season. Conditions stay fairly consistent through the month, making it easier to plan what to wear. At 14°C (57°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.
Sunshine in Brussels in August
Enjoy a sunny month with about 198 hours of sunshine, the clear skies make Brussels even more beautiful.
Wind Speed in Brussels in August
Wind speeds average 3 m/s (6 knots) during August. At this speed, light breezes keep leaves and small twigs in gentle motion while the wind also provides natural cooling. Since this is an average, some days are more tranquil while others have more persistent light winds that are more noticeable.If you're inclined towards comfortable temperatures and drier conditions, August is a good time to visit Brussels.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Belgium, check out our Brussels's climate page.
Brussels Temperature in August
Min Temperature
14°C (57°F)
Max Temperature
24°C (75°F)
Chance of Rain
54%
Precipitation
79 mm (3.1 in)
Rainy days
16 days
Humidity
72%
Windspeed
3 m/s (6 knots)
Sunshine
198 hours
Percentage Sunshine
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Brussels typically stay consistent throughout August, with daily highs averaging around 24°C (75°F). Nights are cool, with lows typically ranging from 12°C (54°F) to 14°C (57°F).
Average temperatures in August
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 August
Historical weather for Brussels in August
Browse day-by-day weather records for Brussels spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Brussels historical weather extremes in August
Based on 49 years of weather observations (1976-2025), these are the most extreme conditions recorded in Brussels.
- On August 4, 1990, temperatures climbed to 35°C (95°F), marking the warmest August day on record.
- On August 31, 1978, Brussels saw its coldest August day with temperatures maxing out at 14°C (57°F).
- The lowest overnight temperature recorded in August was 7°C (45°F) (August 6, 1987).
- The wettest day in August Brussels was on August 10, 1992 with 45 mm (1.8 in) of precipitation.
Best Places in Belgium in August
Find out more about the weather in Belgium and which places have the best travel conditions in this month. See all of Belgium in August →
perfect weather
pleasant
tolerable
unpleasant
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What to Wear in Brussels in August
Comfortable temperatures call for an easy wardrobe in August. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Wet weather is likely, so pack waterproof gear for multiple rainy days. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.What To Do in Brussels in August
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Belgium, check out our Brussels's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed
See the full Brussels climate overview or explore weather in Belgium.
