Weather in Brussels in August
How warm is it in Brussels in August?
In August the typical daytime high in Brussels is 23.3 °C on average, from 23.9 °C at the start to 22.1 °C at the end of the month.
That is 0.1 °C cooler than in July and 3.3 °C warmer than in September.
The last 10 years were 1.8 °C warmer than more than 40 years ago.
Click a day for more: afternoon and night, the usual range, records and how fast it is warming.
Measured at the weather station Uccle, 6 km away.