Last updated: March 2, 2024
The weather in Brussels, Belgium, during May is characterized by an average temperature of 13°C (57°F). Highs can soar to 26°C (80°F), while lows may dip to 2°C (36°F). Typically, the humidity level in Brussels throughout May hovers around 82%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In May, Brussels averages 58 mm (2.3 inches) of rainfall, typically over the course of 12 rainy days. The month enjoys an average of 15 hours 31 minutes of daylight, with the sun shining for approximately 12 hours 42 minutes each day. Additionally, there is a 33% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In May, the UV Index in Brussels reaches a maximum of 7, indicating a level of High exposure. The most intense UV radiation typically occurs between 12:00 and 14:00, 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 | 4 | 5 | 7 | 7 | 7 | 6 | 5 | 4 | 2 | 1 |
| Exposure | Low | Moderate | High | Moderate | Low | ||||||||
| Time to burn | 45 min | 30 min | 25 min | 30 min | 45 min | ||||||||