Typically the weather in Brussels in the course of August is 16 with the high being 22 with lows around 13 degrees celsius. We have put some more detail below here:
| Month | Degrees Celsius |
|---|---|
| Temperature | 16 |
| High Temperature | 22 |
| Low Temperature | 13 |
| Sunshine Per Day | 6 |
Useful Links: Brussels Weather: Average Weather & Yearly Climate