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January Weather in Saint-Germain, Belgium

Last updated: August 22, 2025

In Saint-Germain, Belgium, the average temperature in January hovers around 3°C (38°F). Expect chilly days with minimums dipping to -8°C (18°F) and the occasional warmer moments reaching up to 13°C (56°F). Throughout the month, 69 mm (2.7 in) of precipitation can be expected over 12 days, accompanied by an average humidity level of 91%. Dress warmly and be prepared for a damp atmosphere!

January Temperature in Saint-Germain

In January in Saint-Germain, the average temperature is 3°C (38°F), with maximums reaching 13°C (56°F) and minimums dropping as low as -8°C (18°F). It's advisable to pack warm clothing if you're traveling during this time.

January Weather in Saint-Germain: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Saint-Germain, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Saint-Germain, January typically has an average temperature of 3°C (38°F), with highs reaching up to 13°C (56°F) and lows dropping to around -8°C (18°F).
JanFebMarAprMayJunJulAugSepOctNovDec384144495664656559534441
Data source: Temperature data for Saint-Germain 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 Saint-Germain

In Saint-Germain in January, the precipitation amount is 69 mm (2.7 in) over the span of 12 days.

January Precipitation Trends in Saint-Germain

The chart displays monthly precipitation patterns in Saint-Germain, 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 Saint-Germain, January typically receives around 69 mm (2.7 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec6973774267787789658660105
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Saint-Germain

In Saint-Germain in January humidity is 91%. With an average temperature of 3°C (38°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities uncomfortable and necessitating layered clothing to stay warm and dry during your travels.

January Average Humidity in Saint-Germain

This chart illustrates the average monthly humidity levels in Saint-Germain, 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 Saint-Germain 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 Saint-Germain

In Saint-Germain in January, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Saint-Germain, you can visit Hourly UV Index in Saint-Germain.

Maximum UV Index Levels in Saint-Germain for January

The chart shows the monthly maximum UV Index (UVI) for Saint-Germain 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 Saint-Germain typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec234578875421
Data source: Saint-Germain 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 Saint-Germain Compares to Other Months

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

This table compares monthly weather conditions in Saint-Germain, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather3°C (38°F)69 mm (2.7 inches)91%low
February Weather5°C (41°F)73 mm (2.9 inches)89%moderate
March Weather7°C (45°F)77 mm (3.0 inches)87%moderate
April Weather10°C (50°F)41 mm (1.6 inches)85%moderate
May Weather13°C (56°F)67 mm (2.6 inches)82%high
June Weather18°C (64°F)78 mm (3.1 inches)82%very high
July Weather19°C (66°F)77 mm (3.0 inches)80%very high
August Weather18°C (66°F)89 mm (3.5 inches)76%high
September Weather15°C (59°F)65 mm (2.5 inches)82%moderate
October Weather12°C (53°F)86 mm (3.4 inches)89%moderate
November Weather7°C (44°F)60 mm (2.3 inches)92%low
December Weather5°C (41°F)105 mm (4.1 inches)92%low

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