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January Weather in Forest, Belgium

Last updated: August 22, 2025

In January, the average temperature in Forest, Belgium hovers around 4°C (39°F). Expect chilly days, with minimum temperatures dipping to -7°C (20°F) and peaking at a mild 14°C (57°F). This month also brings about 65 mm (2.5 in) of precipitation spread over 12 days, coupled with a high average humidity of 91%. Prepare for a cool, damp season!

January Temperature in Forest

In January in Forest, the average temperature is 4°C (39°F). The maximum can reach 14°C (57°F), while the minimum can drop as low as -7°C (20°F). Travelers should prepare for a mix of chilly and mild weather, making layers essential for comfort during their stay.

January Weather in Forest: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Forest, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Forest, January typically has an average temperature of 4°C (39°F), with highs reaching up to 14°C (57°F) and lows dropping to around -7°C (20°F).
JanFebMarAprMayJunJulAugSepOctNovDec394245505664666660544542
Data source: Temperature data for Forest generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

January Precipitation in Forest

In Forest in January, the precipitation amount is 65 mm (2.5 in) over the course of 12 days.

January Precipitation Trends in Forest

The chart displays monthly precipitation patterns in Forest, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Forest, January typically receives around 65 mm (2.5 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec656971375866718055765793
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Forest

In Forest 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.

January Average Humidity in Forest

This chart illustrates the average monthly humidity levels in Forest, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Forest is approximately 91%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%87%85%82%82%80%76%82%89%92%92%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Forest

In Forest 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 Forest.

Maximum UV Index Levels in Forest for January

The chart shows the monthly maximum UV Index (UVI) for Forest in January, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In January, the maximum UV index in Forest typically reaches 1, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124578875421
Data source: Forest January UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How January Weather in Forest Compares to Other Months

Weather in Forest varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Forest, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Forest, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather4°C (39°F)65 mm (2.5 inches)91%low
February Weather5°C (42°F)69 mm (2.7 inches)89%low
March Weather7°C (45°F)70 mm (2.8 inches)87%moderate
April Weather10°C (50°F)37 mm (1.5 inches)85%moderate
May Weather13°C (57°F)58 mm (2.3 inches)82%high
June Weather18°C (65°F)66 mm (2.6 inches)82%very high
July Weather19°C (66°F)71 mm (2.8 inches)80%very high
August Weather19°C (66°F)80 mm (3.2 inches)76%high
September Weather15°C (60°F)55 mm (2.2 inches)82%moderate
October Weather12°C (54°F)76 mm (3.0 inches)89%moderate
November Weather7°C (45°F)57 mm (2.2 inches)92%low
December Weather5°C (42°F)93 mm (3.7 inches)92%low

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