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December Weather in Rueun, Switzerland

Last updated: August 27, 2025

In December, the average temperature in Rueun, Switzerland hovers around -6°C (22°F). Expect chilly conditions as temperatures can plummet to a minimum of -25°C (-13°F), while highs can reach up to 6°C (43°F). Be prepared for a wet month, with 145 mm (5.7 in) of precipitation expected over 18 days, and a high average humidity of 90%.

December Temperature in Rueun

In December in Rueun, the average temperature is -6°C (22°F). The maximum can reach 6°C (43°F), while the minimum can be as low as -25°C (-13°F). It's essential to pack warm clothing and prepare for chilly conditions if traveling during this time.

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

The chart illustrates December temperature patterns in Rueun, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rueun, December typically has an average temperature of -6°C (22°F), with highs reaching up to 6°C (43°F) and lows dropping to around -25°C (-13°F).
JanFebMarAprMayJunJulAugSepOctNovDec182529354253545448402921
Data source: Temperature data for Rueun 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 Rueun

In Rueun in December, the precipitation amount is 145 mm (5.7 in) over the course of 18 days.

December Precipitation Trends in Rueun

The chart displays monthly precipitation patterns in Rueun, 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 Rueun, December typically receives around 145 mm (5.7 inches) of precipitation spread over approximately 18 days.
JanFebMarAprMayJunJulAugSepOctNovDec1077310995150158180234152153108145
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Rueun

In Rueun in December, humidity is 90%. With an average temperature of -6°C (22°F), this humidity feels like a biting chill that seeps into your bones, making travel uncomfortable and necessitating extra layers to stay warm while navigating through the damp, frosty air.

December Average Humidity in Rueun

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

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

Maximum UV Index Levels in Rueun for December

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

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

This table compares monthly weather conditions in Rueun, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-8°C (19°F)107 mm (4.2 inches)92%low
February Weather-4°C (25°F)73 mm (2.9 inches)89%moderate
March Weather-2°C (29°F)109 mm (4.3 inches)87%high
April Weather2°C (35°F)95 mm (3.7 inches)84%very high
May Weather6°C (43°F)150 mm (5.9 inches)80%very high
June Weather11°C (53°F)158 mm (6.2 inches)82%very high
July Weather12°C (55°F)180 mm (7.1 inches)83%very high
August Weather12°C (54°F)234 mm (9.2 inches)80%very high
September Weather9°C (48°F)152 mm (6.0 inches)83%high
October Weather5°C (40°F)153 mm (6.0 inches)90%moderate
November Weather-1°C (30°F)108 mm (4.3 inches)88%moderate
December Weather-6°C (22°F)145 mm (5.7 inches)90%low

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