Last updated: August 22, 2025
In December, the average temperature in Niel-bij-As, Belgium hovers around 5°C (42°F). Expect chilly days, as temperatures can dip as low as -4°C (24°F) and occasionally rise to a maximum of 15°C (60°F). With an average precipitation of 96 mm (3.8 in) spread over 18 days and a humidity level of 92%, it's advisable to come prepared for wet and damp conditions!
In December in Niel-bij-As, the average temperature is 5°C (42°F). The maximum can reach 15°C (60°F), and the minimum can be as low as -4°C (24°F). Be prepared for a mix of cool and mild weather when traveling during this time.
In Niel-bij-As in December, the precipitation amount is 96 mm (3.8 in), occurring over a span of 18 days.
In Niel-bij-As in December, humidity is 92%. With an average temperature of 5°C (42°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities uncomfortable and travel less enjoyable.
In Niel-bij-As in December, 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 Niel-bij-As.
UV Risk Categories
Weather in Niel-bij-As varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Niel-bij-As, 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) | 72 mm (2.8 inches) | 90% | low |
| March Weather | 7°C (45°F) | 76 mm (3.0 inches) | 87% | moderate |
| April Weather | 10°C (51°F) | 35 mm (1.4 inches) | 84% | moderate |
| May Weather | 14°C (58°F) | 60 mm (2.4 inches) | 77% | high |
| June Weather | 19°C (66°F) | 78 mm (3.1 inches) | 74% | very high |
| July Weather | 19°C (67°F) | 76 mm (3.0 inches) | 72% | very high |
| August Weather | 19°C (67°F) | 78 mm (3.1 inches) | 71% | high |
| September Weather | 15°C (60°F) | 61 mm (2.4 inches) | 81% | moderate |
| October Weather | 12°C (54°F) | 84 mm (3.3 inches) | 88% | moderate |
| November Weather | 7°C (45°F) | 55 mm (2.2 inches) | 91% | low |
| December Weather | 5°C (42°F) | 96 mm (3.8 inches) | 92% | low |