Last updated: June 24, 2025
In April, the average temperature in Brussels, United States hovers around 5°C (41°F), with lows plunging to -9°C (15°F) and highs reaching up to 19°C (66°F). Expect about 92 mm (3.6 in) of precipitation spread over 12 days, contributing to a notable average humidity of 84%. It's a month that embraces the chill while hinting at the warmth to come!
In April in Brussels, the average temperature is 5°C (41°F). The maximum can reach 19°C (66°F), while the minimum can dip as low as -9°C (15°F). Be prepared for a wide range of temperatures and pack accordingly for your travels!
In Brussels in April, the precipitation amount is 92 mm (3.6 in) over the course of 12 days.
In Brussels in April humidity is 84%. With an average temperature of 5°C (41°F), this humidity feels like a damp chill that seeps into your bones, making traveling uncomfortable as you navigate through the cold, heavy air that clings to your skin.
In Brussels in April, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Brussels.
UV Risk Categories
Weather in Brussels varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in Brussels, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -5°C (23°F) | 42 mm (1.6 inches) | 89% | low |
| February Weather | -5°C (22°F) | 50 mm (2.0 inches) | 90% | moderate |
| March Weather | 0°C (32°F) | 58 mm (2.3 inches) | 87% | moderate |
| April Weather | 5°C (41°F) | 92 mm (3.6 inches) | 84% | high |
| May Weather | 11°C (53°F) | 95 mm (3.8 inches) | 77% | very high |
| June Weather | 18°C (64°F) | 101 mm (4.0 inches) | 75% | very high |
| July Weather | 22°C (72°F) | 90 mm (3.6 inches) | 74% | very high |
| August Weather | 21°C (70°F) | 96 mm (3.8 inches) | 73% | very high |
| September Weather | 17°C (63°F) | 66 mm (2.6 inches) | 78% | high |
| October Weather | 11°C (51°F) | 99 mm (3.9 inches) | 84% | moderate |
| November Weather | 3°C (37°F) | 53 mm (2.1 inches) | 89% | moderate |
| December Weather | -2°C (29°F) | 56 mm (2.2 inches) | 87% | low |