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December Weather in Berne, United States

Last updated: June 24, 2025

In Berne, United States, the average temperature in December hovers around -1°C (30°F). However, temperatures can swing from a brisk -22°C (-8°F) at their lowest to a mild 17°C (64°F) at their peak. Travelers should be prepared for precipitation, with an average of 96 mm (3.8 in) over 12 days and an average humidity of 84%. 🌧️❄️

December Temperature in Berne

In December in Berne, the average temperature is -1°C (30°F), with maximums reaching 17°C (64°F) and minimums plummeting to -22°C (-8°F). Be prepared for a wide range of temperatures to fully enjoy your travel experience.

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

The chart illustrates December temperature patterns in Berne, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Berne, December typically has an average temperature of -1°C (30°F), with highs reaching up to 17°C (64°F) and lows dropping to around -22°C (-8°F).
JanFebMarAprMayJunJulAugSepOctNovDec252734465866727063523830
Data source: Temperature data for Berne 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 Berne

In Berne in December, the precipitation amount is 96 mm (3.8 in) spread over a duration of 12 days.

December Precipitation Trends in Berne

The chart displays monthly precipitation patterns in Berne, 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 Berne, December typically receives around 96 mm (3.8 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec759482121106105124110981439396
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Berne

In Berne in December, humidity is 84%. With an average temperature of -1°C (30°F), this humidity feels like a sharp chill that seeps into your bones, making travel uncomfortable as the wetness in the air intensifies the cold, leaving you yearning for warmth and shelter.

December Average Humidity in Berne

This chart illustrates the average monthly humidity levels in Berne, 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 Berne is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%88%86%84%76%72%67%64%72%81%87%85%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Berne

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

Maximum UV Index Levels in Berne for December

The chart shows the monthly maximum UV Index (UVI) for Berne 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 Berne typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3468910997642
Data source: Berne 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 Berne Compares to Other Months

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

This table compares monthly weather conditions in Berne, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-4°C (25°F)75 mm (3.0 inches)89%moderate
February Weather-3°C (28°F)94 mm (3.7 inches)88%moderate
March Weather1°C (34°F)82 mm (3.2 inches)86%high
April Weather8°C (46°F)121 mm (4.8 inches)84%very high
May Weather14°C (58°F)106 mm (4.2 inches)76%very high
June Weather19°C (67°F)105 mm (4.1 inches)72%very high
July Weather22°C (72°F)124 mm (4.9 inches)66%very high
August Weather21°C (70°F)110 mm (4.3 inches)64%very high
September Weather17°C (63°F)98 mm (3.9 inches)72%high
October Weather11°C (53°F)143 mm (5.6 inches)81%high
November Weather3°C (38°F)93 mm (3.7 inches)87%moderate
December Weather-1°C (30°F)96 mm (3.8 inches)84%low

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