Last updated: August 22, 2025
In Alle, Belgium, the average temperature in May hovers around 13°C (55°F), with extremes ranging from a chilly 0°C (32°F) to a warm 30°C (87°F). Expect about 79 mm (3.1 in) of precipitation spread over 13 days, contributing to an average humidity of 82%. Prepare for a month of dynamic weather!
In May in Alle, the average temperature is 13°C (55°F). The maximum can reach 30°C (87°F), while the minimum can be as low as 0°C (32°F). Be sure to pack layers to stay comfortable amidst the varying temperatures during your travels.
In Alle in May, the precipitation amount is 79 mm (3.1 in) over a span of 13 days.
In Alle in May, humidity is 82%. With an average temperature of 13°C (55°F), this humidity feels like a heavy blanket wrapping around you, making outdoor activities sticky and uncomfortable for traveling.
In Alle in May, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Alle.
UV Risk Categories
Weather in Alle varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Alle, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 2°C (36°F) | 92 mm (3.6 inches) | 91% | low |
| February Weather | 4°C (40°F) | 90 mm (3.5 inches) | 89% | moderate |
| March Weather | 6°C (44°F) | 99 mm (3.9 inches) | 86% | moderate |
| April Weather | 9°C (49°F) | 46 mm (1.8 inches) | 84% | high |
| May Weather | 13°C (55°F) | 79 mm (3.1 inches) | 82% | very high |
| June Weather | 18°C (64°F) | 78 mm (3.1 inches) | 82% | very high |
| July Weather | 18°C (66°F) | 73 mm (2.9 inches) | 80% | very high |
| August Weather | 18°C (65°F) | 77 mm (3.0 inches) | 76% | very high |
| September Weather | 15°C (59°F) | 70 mm (2.8 inches) | 81% | high |
| October Weather | 11°C (52°F) | 102 mm (4.0 inches) | 88% | moderate |
| November Weather | 6°C (43°F) | 80 mm (3.2 inches) | 92% | low |
| December Weather | 4°C (39°F) | 146 mm (5.8 inches) | 93% | low |