Last updated: March 2, 2024
The weather in Brussels, Belgium, during August is characterized by an average temperature of 19°C (66°F). Highs can soar to 32°C (89°F), while lows may dip to 9°C (49°F). Typically, the humidity level in Brussels throughout August hovers around 76%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In August, Brussels averages 80 mm (3.2 inches) of rainfall, typically over the course of 14 rainy days. The month enjoys an average of 14 hours 25 minutes of daylight, with the sun shining for approximately 12 hours 12 minutes each day. Additionally, there is a 29% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In August, the UV Index in Brussels reaches a maximum of 7, indicating a level of High exposure. The most intense UV radiation typically occurs between 13:00 and 15:00, during which unprotected skin may burn in as little as 25 minutes.
| 07:00 | 08:00 | 09:00 | 10:00 | 11:00 | 12:00 | 13:00 | 14:00 | 15:00 | 16:00 | 17:00 | 18:00 | 19:00 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UVI | 1 | 1 | 2 | 3 | 5 | 6 | 7 | 7 | 7 | 5 | 4 | 2 | 1 |
| Exposure | Low | Moderate | High | Moderate | Low | ||||||||
| Time to burn | 45 min | 30 min | 25 min | 30 min | 45 min | ||||||||