Last updated: August 22, 2025
In January, the average temperature in Oud-Heverlee, Belgium hovers around 4°C (39°F), with nightly lows dipping to a brisk -7°C (19°F) and daytime highs reaching a mild 13°C (56°F). Expect around 65 mm (2.6 in) of precipitation over approximately 11 days, contributing to an average humidity level of a notable 91%. Whether you're exploring the sights or cozying up indoors, be prepared for a cool and damp atmosphere!
In January in Oud-Heverlee, the average temperature is 4°C (39°F), with maximums reaching 13°C (56°F) and minimums dropping as low as -7°C (19°F). Be sure to pack warm clothing and prepare for chilly conditions if you're planning to visit during this time.
In Oud-Heverlee in January, the precipitation amount is 65 mm (2.6 in) over a span of 11 days.
In Oud-Heverlee in January, humidity is 91%. With an average temperature of 4°C (39°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities less enjoyable and forcing travelers to bundle up tightly against the cold, sticky air.
In Oud-Heverlee in January, the maximum UV index is 1, which corresponds to a low Exposure Category. This means you have a time to burn of 45 minutes. For more details, you can check the Hourly UV Index in Oud-Heverlee.
UV Risk Categories
Weather in Oud-Heverlee varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Oud-Heverlee, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 4°C (39°F) | 65 mm (2.6 inches) | 91% | low |
| February Weather | 5°C (42°F) | 71 mm (2.8 inches) | 89% | low |
| March Weather | 7°C (45°F) | 72 mm (2.8 inches) | 87% | moderate |
| April Weather | 10°C (50°F) | 37 mm (1.4 inches) | 85% | moderate |
| May Weather | 13°C (57°F) | 62 mm (2.4 inches) | 82% | high |
| June Weather | 18°C (65°F) | 75 mm (3.0 inches) | 82% | very high |
| July Weather | 19°C (66°F) | 78 mm (3.1 inches) | 80% | very high |
| August Weather | 19°C (66°F) | 88 mm (3.5 inches) | 76% | high |
| September Weather | 15°C (60°F) | 60 mm (2.4 inches) | 82% | moderate |
| October Weather | 12°C (54°F) | 81 mm (3.2 inches) | 89% | moderate |
| November Weather | 7°C (45°F) | 57 mm (2.3 inches) | 92% | low |
| December Weather | 5°C (42°F) | 96 mm (3.8 inches) | 92% | low |