Weather in August
Temperature
Brussels transitions into August recording an average high-temperature of a pleasant 22.6°C (72.7°F), closely aligning with the preceding month's temperature. During August, Brussels records a consistent average nighttime temperature of 13.6°C (56.5°F).Humidity
In August, the average relative humidity is 75.5%.Rainfall
In Brussels, in August, during 14.5 rainfall days, 79mm (3.11") of precipitation is typically accumulated. Throughout the year, there are 199.6 rainfall days, and 853mm (33.58") of precipitation is accumulated.Snowfall
In Brussels, snow does not fall in May through October.Daylight
In Brussels, the average length of the day in August is 14h and 29min.On the first day of the month, sunrise is at 06:09 and sunset at 21:28. On the last day of August, sunrise is at 06:55 and sunset at 20:29 CEST.
Sunshine
In Brussels, the average sunshine in August is 6.1h.UV index
In August, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for the ordinary person.Note: The UV index of 6 during August translates into the following guidance:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average August temperature?
What is the average humidity in August in Brussels?
How much does it rain in August?
When it does not snow?
How many hours of daylight does Brussels have in August?
What time are sunrise and sunset in August?
How long on average sun shines in August?
What is the UV index reading in August?
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).
The 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 least 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 least 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).
The months with the least 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: 14h and 3min
The month with the longest days is June (Average daylight: 16h and 24min).
The month with the shortest days is December (Average daylight: 8h and 0min).
- Average sunshine in August: 6h and 1min
The month with the most sunshine is July (Average sunshine: 6h and 30min).
The month with the least sunshine is December (Average sunshine: 1h and 30min).
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).
The months with the lowest UV index are January, February, November and December (UV index 1).
Brussels, Belgium
Weather forecast for your location
2. Allow the app to use your location