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December Weather in Sargans, Switzerland

Last updated: August 27, 2025

In December, the average temperature in Sargans, Switzerland hovers around -3°C (26°F). Expect chilly extremes with minimum temperatures plummeting to -25°C (-12°F) and a maximum reach of 9°C (49°F). The month is also characterized by 164 mm (6.4 in) of precipitation over approximately 18 days, contributing to a high average humidity of 90%.

December Temperature in Sargans

In December in Sargans, the average temperature is -3°C (26°F), with maximums reaching 9°C (49°F) and minimums dropping as low as -25°C (-12°F). Be sure to pack warm clothing if you're traveling during this time!

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

The chart illustrates December temperature patterns in Sargans, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sargans, December typically has an average temperature of -3°C (26°F), with highs reaching up to 9°C (49°F) and lows dropping to around -25°C (-12°F).
JanFebMarAprMayJunJulAugSepOctNovDec242934404756585851443526
Data source: Temperature data for Sargans 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 Sargans

In Sargans in December, the precipitation amount is 164 mm (6.4 in) over the course of 18 days.

December Precipitation Trends in Sargans

The chart displays monthly precipitation patterns in Sargans, 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 Sargans, December typically receives around 164 mm (6.4 inches) of precipitation spread over approximately 18 days.
JanFebMarAprMayJunJulAugSepOctNovDec1399512811319619721223916615599164
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Sargans

In Sargans in December, humidity is 90%. With an average temperature of -3°C (26°F), this humidity feels like a biting chill that seeps through layers of clothing, making outdoor exploration feel arduous and uncomfortable as the cold, damp air grips your skin.

December Average Humidity in Sargans

This chart illustrates the average monthly humidity levels in Sargans, 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 Sargans 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 Sargans

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

Maximum UV Index Levels in Sargans for December

The chart shows the monthly maximum UV Index (UVI) for Sargans 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 Sargans typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec24678101087532
Data source: Sargans 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 Sargans Compares to Other Months

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

This table compares monthly weather conditions in Sargans, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-5°C (24°F)138 mm (5.5 inches)92%low
February Weather-2°C (29°F)94 mm (3.7 inches)89%moderate
March Weather1°C (34°F)128 mm (5.0 inches)87%high
April Weather5°C (41°F)113 mm (4.4 inches)84%high
May Weather8°C (48°F)196 mm (7.7 inches)80%very high
June Weather14°C (57°F)197 mm (7.8 inches)82%very high
July Weather14°C (58°F)212 mm (8.3 inches)83%very high
August Weather14°C (58°F)239 mm (9.4 inches)80%very high
September Weather11°C (51°F)166 mm (6.5 inches)83%high
October Weather7°C (44°F)155 mm (6.1 inches)90%moderate
November Weather1°C (35°F)99 mm (3.9 inches)88%moderate
December Weather-3°C (26°F)164 mm (6.4 inches)90%low

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