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December Weather in Bilten, Switzerland

Last updated: August 27, 2025

In Bilten, Switzerland, the average temperature in December hovers around 0°C (33°F), with a minimum dipping to -12°C (10°F) and a maximum rising to 12°C (53°F). Expect 165 mm (6.5 in) of precipitation spread over approximately 19 days, contributing to an average humidity level of 90%. Prepare for a chilly and damp month ahead!

December Temperature in Bilten

In December in Bilten, the average temperature is 0°C (33°F). Maximums can reach 12°C (53°F), while minimums can dip as low as -12°C (10°F). Be prepared for a chilly experience and pack accordingly for your travels!

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

The chart illustrates December temperature patterns in Bilten, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Bilten, December typically has an average temperature of 0°C (33°F), with highs reaching up to 12°C (53°F) and lows dropping to around -12°C (10°F).
JanFebMarAprMayJunJulAugSepOctNovDec303439455261636356483933
Data source: Temperature data for Bilten 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 Bilten

In Bilten in December, the precipitation amount is 165 mm (6.5 in) over the course of 19 days.

December Precipitation Trends in Bilten

The chart displays monthly precipitation patterns in Bilten, 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 Bilten, December typically receives around 165 mm (6.5 inches) of precipitation spread over approximately 19 days.
JanFebMarAprMayJunJulAugSepOctNovDec1361001249918020320121915013584165
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Bilten

In Bilten in December humidity is 90%. With average temperature 0°C (33°F) this humidity feels like a damp chill that clings to your skin, making every step outside feel heavier and more exhausting for traveling.

December Average Humidity in Bilten

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

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

Maximum UV Index Levels in Bilten for December

The chart shows the monthly maximum UV Index (UVI) for Bilten 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 Bilten typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2357810986432
Data source: Bilten 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 Bilten Compares to Other Months

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

This table compares monthly weather conditions in Bilten, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (30°F)136 mm (5.4 inches)92%low
February Weather1°C (34°F)100 mm (3.9 inches)89%moderate
March Weather4°C (39°F)124 mm (4.9 inches)87%moderate
April Weather7°C (46°F)99 mm (3.9 inches)84%high
May Weather11°C (52°F)180 mm (7.1 inches)80%very high
June Weather16°C (61°F)203 mm (8.0 inches)82%very high
July Weather17°C (63°F)201 mm (7.9 inches)83%very high
August Weather17°C (63°F)219 mm (8.6 inches)80%very high
September Weather13°C (56°F)150 mm (5.9 inches)83%high
October Weather9°C (48°F)135 mm (5.3 inches)90%moderate
November Weather4°C (39°F)84 mm (3.3 inches)88%moderate
December Weather0°C (33°F)165 mm (6.5 inches)90%low

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