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January Weather in Sillery, France

Last updated: August 23, 2025

In January, the average temperature in Sillery, France hovers around 4°C (39°F), with minimums dipping to a chilly -8°C (18°F) and maximums peaking at 14°C (58°F). Be prepared for potential rain, as 73 mm (2.9 in) of precipitation may fall over the course of 13 days. With humidity levels averaging 91%, it's a month where cozy layers and an umbrella are essential!

January Temperature in Sillery

In January in Sillery, the average temperature is 4°C (39°F), with maximums reaching 14°C (58°F) and minimums dropping as low as -8°C (18°F). Travelers should be prepared for chilly conditions and pack accordingly.

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

The chart illustrates January temperature patterns in Sillery, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sillery, January typically has an average temperature of 4°C (39°F), with highs reaching up to 14°C (58°F) and lows dropping to around -8°C (18°F).
JanFebMarAprMayJunJulAugSepOctNovDec394246515866696862544542
Data source: Temperature data for Sillery 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 Sillery

In Sillery in January, the precipitation amount is 73 mm (2.9 in) over the course of 13 days.

January Precipitation Trends in Sillery

The chart displays monthly precipitation patterns in Sillery, 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 Sillery, January typically receives around 73 mm (2.9 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec7374763663696461598568116
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Sillery

In Sillery 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 Sillery

This chart illustrates the average monthly humidity levels in Sillery, 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 Sillery is approximately 91%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%86%84%83%83%80%76%81%88%92%93%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Sillery

In Sillery 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 Sillery, you can visit Hourly UV Index in Sillery.

Maximum UV Index Levels in Sillery for January

The chart shows the monthly maximum UV Index (UVI) for Sillery 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 Sillery typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec234688886421
Data source: Sillery 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 Sillery Compares to Other Months

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

This table compares monthly weather conditions in Sillery, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather4°C (39°F)73 mm (2.9 inches)91%low
February Weather6°C (42°F)74 mm (2.9 inches)89%moderate
March Weather8°C (46°F)76 mm (3.0 inches)86%moderate
April Weather11°C (52°F)36 mm (1.4 inches)84%high
May Weather14°C (58°F)63 mm (2.5 inches)82%very high
June Weather19°C (66°F)69 mm (2.7 inches)82%very high
July Weather20°C (69°F)64 mm (2.5 inches)80%very high
August Weather20°C (68°F)61 mm (2.4 inches)76%very high
September Weather16°C (62°F)59 mm (2.3 inches)81%high
October Weather12°C (54°F)85 mm (3.3 inches)88%moderate
November Weather7°C (45°F)68 mm (2.7 inches)92%low
December Weather5°C (42°F)116 mm (4.6 inches)93%low

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