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December Weather in Ruthi, Switzerland

Last updated: August 27, 2025

In December, the average temperature in Ruthi, Switzerland hovers around -1°C (31°F), with extremes dipping as low as -17°C (2°F) and peaking at 12°C (54°F). Expect 156 mm (6.2 in) of precipitation spread over 18 days, and brace for a high average humidity of 90%.

December Temperature in Ruthi

In December in Ruthi, the average temperature is -1°C (31°F), with maximums reaching 12°C (54°F) and minimums dropping as low as -17°C (2°F). Be prepared for chilly weather and pack appropriate clothing to stay warm during your travels.

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

The chart illustrates December temperature patterns in Ruthi, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ruthi, December typically has an average temperature of -1°C (31°F), with highs reaching up to 12°C (54°F) and lows dropping to around -17°C (2°F).
JanFebMarAprMayJunJulAugSepOctNovDec283338455261626255483931
Data source: Temperature data for Ruthi 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 Ruthi

In Ruthi in December, the total precipitation amount is 156 mm (6.2 in) over a span of 18 days.

December Precipitation Trends in Ruthi

The chart displays monthly precipitation patterns in Ruthi, 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 Ruthi, December typically receives around 156 mm (6.2 inches) of precipitation spread over approximately 18 days.
JanFebMarAprMayJunJulAugSepOctNovDec1359712310318319121123315814288156
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Ruthi

In Ruthi in December humidity is 90%. With an average temperature of -1°C (31°F), this humidity feels like an icy blanket wrapping around you, making travel uncomfortable as the damp air seeps into your clothes, chilling you to the bone with every step you take.

December Average Humidity in Ruthi

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

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

Maximum UV Index Levels in Ruthi for December

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

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

This table compares monthly weather conditions in Ruthi, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (29°F)134 mm (5.3 inches)92%low
February Weather0°C (33°F)97 mm (3.8 inches)89%moderate
March Weather3°C (38°F)123 mm (4.8 inches)87%high
April Weather7°C (45°F)103 mm (4.0 inches)84%high
May Weather11°C (52°F)183 mm (7.2 inches)80%very high
June Weather16°C (61°F)191 mm (7.5 inches)82%very high
July Weather17°C (62°F)211 mm (8.3 inches)83%very high
August Weather17°C (62°F)233 mm (9.2 inches)80%very high
September Weather13°C (55°F)158 mm (6.2 inches)83%high
October Weather9°C (48°F)141 mm (5.6 inches)90%moderate
November Weather4°C (39°F)88 mm (3.5 inches)88%moderate
December Weather-1°C (31°F)156 mm (6.2 inches)90%low

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