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December Weather in Muttenz, Switzerland

Last updated: August 27, 2025

In December, the average temperature in Muttenz, Switzerland hovers around 3°C (38°F), with daily fluctuations ranging from a chilly -5°C (24°F) to a mild 14°C (58°F). Expect significant precipitation totaling 124 mm (4.9 in) over approximately 18 days, accompanied by a high average humidity of 90%. Make sure to prepare for a wet and cool month!

December Temperature in Muttenz

In December in Muttenz, the average temperature is 3°C (38°F), with maximums reaching 14°C (58°F) and minimums dropping as low as -5°C (24°F). It's best to pack warm clothing and be prepared for chilly weather if you're planning to travel during this time.

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

The chart illustrates December temperature patterns in Muttenz, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Muttenz, December typically has an average temperature of 3°C (38°F), with highs reaching up to 14°C (58°F) and lows dropping to around -5°C (24°F).
JanFebMarAprMayJunJulAugSepOctNovDec353943505766686860514138
Data source: Temperature data for Muttenz 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 Muttenz

In Muttenz in December, the precipitation amount is 124 mm (4.9 in) over a span of 18 days.

December Precipitation Trends in Muttenz

The chart displays monthly precipitation patterns in Muttenz, 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 Muttenz, December typically receives around 124 mm (4.9 inches) of precipitation spread over approximately 18 days.
JanFebMarAprMayJunJulAugSepOctNovDec89758759126120122115699073124
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Muttenz

In Muttenz in December humidity is 90%. With an average temperature of 3°C (38°F), this humidity feels like a damp chill wrapping around you, making travel uncomfortable as the cold penetrates your clothing while the heavy moisture lingers in the air.

December Average Humidity in Muttenz

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

In Muttenz 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 Muttenz.

Maximum UV Index Levels in Muttenz for December

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

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

This table compares monthly weather conditions in Muttenz, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (35°F)89 mm (3.5 inches)92%low
February Weather4°C (39°F)75 mm (2.9 inches)89%moderate
March Weather6°C (44°F)87 mm (3.4 inches)87%moderate
April Weather10°C (50°F)59 mm (2.3 inches)84%high
May Weather14°C (57°F)126 mm (5.0 inches)80%very high
June Weather19°C (66°F)120 mm (4.7 inches)82%very high
July Weather20°C (69°F)122 mm (4.8 inches)83%very high
August Weather20°C (68°F)115 mm (4.5 inches)80%very high
September Weather16°C (61°F)69 mm (2.7 inches)83%high
October Weather11°C (52°F)89 mm (3.5 inches)90%moderate
November Weather5°C (42°F)73 mm (2.9 inches)88%low
December Weather3°C (38°F)124 mm (4.9 inches)90%low

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