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December Weather in Cortaillod, Switzerland

Last updated: August 27, 2025

In December, the average temperature in Cortaillod, Switzerland hovers around 2°C (35°F). Expect chilly conditions with minimum temperatures dropping to -8°C (18°F) and a warm spike reaching 12°C (54°F). Precipitation is quite frequent, totaling 175 mm (6.9 in) over approximately 19 days, while the average humidity sits at a high 91%, making it feel even cooler.

December Temperature in Cortaillod

In December in Cortaillod, the average temperature is 2°C (35°F), with a maximum that can reach 12°C (54°F) and a minimum that can be as low as -8°C (18°F). Travelers should be prepared for cold weather and dress in layers to stay warm while exploring.

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

The chart illustrates December temperature patterns in Cortaillod, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Cortaillod, December typically has an average temperature of 2°C (35°F), with highs reaching up to 12°C (54°F) and lows dropping to around -8°C (18°F).
JanFebMarAprMayJunJulAugSepOctNovDec323640475362656457494035
Data source: Temperature data for Cortaillod 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 Cortaillod

In Cortaillod in December, the precipitation amount is 175 mm (6.9 in) spread over 19 days.

December Precipitation Trends in Cortaillod

The chart displays monthly precipitation patterns in Cortaillod, 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 Cortaillod, December typically receives around 175 mm (6.9 inches) of precipitation spread over approximately 19 days.
JanFebMarAprMayJunJulAugSepOctNovDec12193126691661501461369011399175
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Cortaillod

In Cortaillod in December, humidity is 91%. With an average temperature of 2°C (35°F), this humidity feels like a heavy blanket enveloping you, making travel rather uncomfortable and potentially discouraging for outdoor activities.

December Average Humidity in Cortaillod

This chart illustrates the average monthly humidity levels in Cortaillod, 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 Cortaillod is approximately 91%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%87%84%80%82%82%77%81%89%89%91%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Cortaillod

In Cortaillod in December, the maximum UV index is 1, which corresponds to a low Exposure Category. This means you have a time to burn of 45 minutes. For more details, you can check the Hourly UV Index in Cortaillod.

Maximum UV Index Levels in Cortaillod for December

The chart shows the monthly maximum UV Index (UVI) for Cortaillod 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 Cortaillod typically reaches 1, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235689986421
Data source: Cortaillod 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 Cortaillod Compares to Other Months

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

This table compares monthly weather conditions in Cortaillod, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (32°F)121 mm (4.8 inches)91%low
February Weather2°C (36°F)93 mm (3.6 inches)89%moderate
March Weather5°C (41°F)126 mm (5.0 inches)87%moderate
April Weather9°C (48°F)69 mm (2.7 inches)84%high
May Weather12°C (54°F)166 mm (6.5 inches)80%very high
June Weather17°C (63°F)150 mm (5.9 inches)82%very high
July Weather18°C (65°F)146 mm (5.8 inches)82%very high
August Weather18°C (64°F)136 mm (5.3 inches)77%very high
September Weather14°C (58°F)90 mm (3.6 inches)81%high
October Weather10°C (49°F)113 mm (4.5 inches)89%moderate
November Weather4°C (40°F)99 mm (3.9 inches)89%low
December Weather2°C (35°F)175 mm (6.9 inches)91%low

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