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December Weather in Unterschachen, Switzerland

Last updated: August 27, 2025

In December, the average temperature in Unterschachen, Switzerland hovers around -7°C (20°F). Expect chilly conditions, with minimum lows plummeting to -24°C (-10°F) and maximum highs reaching up to 5°C (41°F). Visitors should be prepared for frequent showers, as the area receives an average precipitation of 178 mm (7.0 in) over 19 days. Additionally, the air is quite humid, with an average humidity level of 90%.

December Temperature in Unterschachen

In December in Unterschachen, the average temperature is -7°C (20°F). The maximum can reach 5°C (41°F), while the minimum can drop as low as -24°C (-10°F). Be sure to pack warm clothing and prepare for a chilly adventure when traveling to Unterschachen during this month.

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

The chart illustrates December temperature patterns in Unterschachen, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Unterschachen, December typically has an average temperature of -7°C (20°F), with highs reaching up to 5°C (41°F) and lows dropping to around -24°C (-10°F).
JanFebMarAprMayJunJulAugSepOctNovDec172226334051535246382720
Data source: Temperature data for Unterschachen 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 Unterschachen

In Unterschachen in December, the total precipitation amount is 178 mm (7.0 in), occurring over 19 days.

December Precipitation Trends in Unterschachen

The chart displays monthly precipitation patterns in Unterschachen, 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 Unterschachen, December typically receives around 178 mm (7.0 inches) of precipitation spread over approximately 19 days.
JanFebMarAprMayJunJulAugSepOctNovDec13692126104154193207269164179117178
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Unterschachen

In Unterschachen in December, humidity is 90%. With an average temperature of -7°C (20°F), this humidity feels like an oppressive chill that seeps into your bones, making travel uncomfortable and your breath visible in the frosty air.

December Average Humidity in Unterschachen

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

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

Maximum UV Index Levels in Unterschachen for December

The chart shows the monthly maximum UV Index (UVI) for Unterschachen 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 Unterschachen typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec24789101097532
Data source: Unterschachen 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 Unterschachen Compares to Other Months

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

This table compares monthly weather conditions in Unterschachen, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-8°C (17°F)136 mm (5.4 inches)92%low
February Weather-6°C (22°F)92 mm (3.6 inches)89%moderate
March Weather-3°C (27°F)126 mm (5.0 inches)87%high
April Weather0°C (33°F)104 mm (4.1 inches)84%very high
May Weather4°C (40°F)154 mm (6.1 inches)80%very high
June Weather10°C (51°F)192 mm (7.6 inches)82%very high
July Weather12°C (53°F)207 mm (8.1 inches)83%very high
August Weather11°C (53°F)269 mm (10.6 inches)80%very high
September Weather8°C (46°F)164 mm (6.5 inches)83%high
October Weather3°C (38°F)179 mm (7.0 inches)90%moderate
November Weather-3°C (27°F)117 mm (4.6 inches)88%moderate
December Weather-7°C (20°F)178 mm (7.0 inches)90%low

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