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December Weather in Leuk, Switzerland

Last updated: August 27, 2025

In December, the average temperature in Leuk, Switzerland hovers around -8°C (17°F). Expect chilly conditions, with minimum temperatures plummeting to -28°C (-18°F) and a maximum reaching 5°C (42°F). During this month, 170 mm (6.7 in) of precipitation falls over approximately 17 days, and the air remains quite humid, with an average humidity of 90%. Stay warm and prepared for the wet, wintry weather!

December Temperature in Leuk

In December in Leuk, the average temperature is -8°C (17°F). Maximums can reach 5°C (42°F), and minimums can be as low as -28°C (-18°F). Be sure to bundle up and prepare for cold conditions while exploring Leuk during this time.

December Weather in Leuk: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Leuk, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Leuk, December typically has an average temperature of -8°C (17°F), with highs reaching up to 5°C (42°F) and lows dropping to around -28°C (-18°F).
JanFebMarAprMayJunJulAugSepOctNovDec142126344151555447382717
Data source: Temperature data for Leuk 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.

December Precipitation in Leuk

In Leuk in December, the precipitation amount is 170 mm (6.7 in) spread over 17 days.

December Precipitation Trends in Leuk

The chart displays monthly precipitation patterns in Leuk, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Leuk, December typically receives around 170 mm (6.7 inches) of precipitation spread over approximately 17 days.
JanFebMarAprMayJunJulAugSepOctNovDec125821098914913010811989148109170
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Leuk

In Leuk in December, humidity is 90%. With an average temperature of -8°C (17°F), this humidity feels like stepping into a thick, icy fog that clings to your skin, making travel feel heavy and uncomfortable as you navigate the damp chill that seeps into your bones.

December Average Humidity in Leuk

This chart illustrates the average monthly humidity levels in Leuk, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Leuk is approximately 90%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec92%89%87%84%80%82%83%80%83%90%89%90%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Leuk

In Leuk in December, 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 Leuk, you can visit Hourly UV Index in Leuk.

Maximum UV Index Levels in Leuk for December

The chart shows the monthly maximum UV Index (UVI) for Leuk in December, 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 December, the maximum UV index in Leuk typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec347810111097632
Data source: Leuk December 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 December Weather in Leuk Compares to Other Months

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

This table compares monthly weather conditions in Leuk, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-10°C (15°F)125 mm (4.9 inches)92%moderate
February Weather-6°C (22°F)82 mm (3.2 inches)89%moderate
March Weather-3°C (27°F)109 mm (4.3 inches)87%high
April Weather1°C (34°F)89 mm (3.5 inches)84%very high
May Weather5°C (41°F)149 mm (5.9 inches)80%very high
June Weather11°C (51°F)130 mm (5.1 inches)82%extreme
July Weather13°C (55°F)108 mm (4.2 inches)83%very high
August Weather12°C (54°F)119 mm (4.7 inches)80%very high
September Weather8°C (47°F)89 mm (3.5 inches)83%high
October Weather4°C (39°F)148 mm (5.8 inches)90%high
November Weather-3°C (27°F)109 mm (4.3 inches)88%moderate
December Weather-8°C (17°F)170 mm (6.7 inches)90%low

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