Last updated: March 2, 2024
The weather in On, Belgium, during May is characterized by an average temperature of 13°C (55°F). Highs can soar to 26°C (79°F), while lows may dip to 1°C (34°F). Typically, the humidity level in On throughout May hovers around 77%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In May, On averages 75 mm (2.9 inches) of rainfall, typically over the course of 14 rainy days. The month enjoys an average of 15 hours 27 minutes of daylight, with the sun shining for approximately 12 hours 44 minutes each day. Additionally, there is a 32% probability of sunny days during this period.
Precipitation
Rainy days
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Chance of sun
In May, the UV Index in On 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 | 7 | 5 | 4 | 2 | 1 |
| Exposure | Low | Moderate | High | Moderate | Low | ||||||||
| Time to burn | 45 min | 30 min | 25 min | 30 min | 45 min | ||||||||