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December Weather in Crissier, Switzerland

Last updated: August 27, 2025

In December, the average temperature in Crissier, Switzerland hovers around 4°C (39°F). Expect a chilly range, with a minimum of -4°C (26°F) and a maximum of 13°C (55°F). Prepare for a damp atmosphere, as precipitation averages 186 mm (7.3 in) spread over 19 days, along with a high humidity level of 91%.

December Temperature in Crissier

In December in Crissier, the average temperature is 4°C (39°F). The maximum can reach 13°C (55°F), while the minimum can dip as low as -4°C (26°F). Be sure to pack warm clothing and prepare for chilly weather if you're planning to travel during this month.

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

The chart illustrates December temperature patterns in Crissier, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Crissier, December typically has an average temperature of 4°C (39°F), with highs reaching up to 13°C (55°F) and lows dropping to around -4°C (26°F).
JanFebMarAprMayJunJulAugSepOctNovDec374043495564676761534539
Data source: Temperature data for Crissier 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 Crissier

In Crissier in December, the precipitation amount is 186 mm (7.3 in) over a span of 19 days.

December Precipitation Trends in Crissier

The chart displays monthly precipitation patterns in Crissier, 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 Crissier, December typically receives around 186 mm (7.3 inches) of precipitation spread over approximately 19 days.
JanFebMarAprMayJunJulAugSepOctNovDec111891185714710412111185110103186
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Crissier

In Crissier in December, humidity is 91%. With an average temperature of 4°C (39°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities less enjoyable and forcing travelers to bundle up tightly against the cold, sticky air.

December Average Humidity in Crissier

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

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

Maximum UV Index Levels in Crissier for December

The chart shows the monthly maximum UV Index (UVI) for Crissier 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 Crissier typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2367810987532
Data source: Crissier 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 Crissier Compares to Other Months

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

This table compares monthly weather conditions in Crissier, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather3°C (37°F)111 mm (4.4 inches)91%low
February Weather4°C (40°F)89 mm (3.5 inches)89%moderate
March Weather6°C (43°F)118 mm (4.6 inches)87%high
April Weather9°C (49°F)57 mm (2.2 inches)84%high
May Weather13°C (55°F)147 mm (5.8 inches)80%very high
June Weather18°C (64°F)104 mm (4.1 inches)82%very high
July Weather20°C (68°F)121 mm (4.8 inches)82%very high
August Weather19°C (67°F)110 mm (4.3 inches)77%very high
September Weather16°C (61°F)85 mm (3.3 inches)81%high
October Weather12°C (53°F)110 mm (4.3 inches)89%moderate
November Weather7°C (45°F)103 mm (4.1 inches)89%moderate
December Weather4°C (39°F)186 mm (7.3 inches)91%low

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