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December Weather in Signau, Switzerland

Last updated: August 27, 2025

In Signau, Switzerland during December, the average temperature hovers around 1°C (35°F), with a minimum dipping to -7°C (19°F) and a maximum peaking at 12°C (54°F). Expect precipitation of about 136 mm (5.3 in) over approximately 18 days, contributing to a notably high average humidity of 90%.

December Temperature in Signau

In December in Signau, the average temperature is 1°C (35°F). Maximums can reach 12°C (54°F), while minimums can dip as low as -7°C (19°F). When traveling during this time, it's essential to pack warm clothing to stay comfortable in the chilly weather.

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

The chart illustrates December temperature patterns in Signau, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Signau, December typically has an average temperature of 1°C (35°F), with highs reaching up to 12°C (54°F) and lows dropping to around -7°C (19°F).
JanFebMarAprMayJunJulAugSepOctNovDec323641475463656558493935
Data source: Temperature data for Signau 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 Signau

In Signau in December, the total precipitation amount is 136 mm (5.3 in), spread over 18 days.

December Precipitation Trends in Signau

The chart displays monthly precipitation patterns in Signau, 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 Signau, December typically receives around 136 mm (5.3 inches) of precipitation spread over approximately 18 days.
JanFebMarAprMayJunJulAugSepOctNovDec10482100721401331381348611276136
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Signau

In Signau in December humidity is 90%. With an average temperature of 1°C (35°F), this humidity feels like an icy blanket clinging to your skin, making travel uncomfortable and every breath a struggle against the damp chill.

December Average Humidity in Signau

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

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

Maximum UV Index Levels in Signau for December

The chart shows the monthly maximum UV Index (UVI) for Signau 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 Signau typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235689986422
Data source: Signau 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 Signau Compares to Other Months

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

This table compares monthly weather conditions in Signau, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (32°F)104 mm (4.1 inches)92%low
February Weather2°C (36°F)82 mm (3.2 inches)89%moderate
March Weather5°C (41°F)100 mm (3.9 inches)87%moderate
April Weather9°C (48°F)72 mm (2.8 inches)84%high
May Weather12°C (54°F)139 mm (5.5 inches)80%very high
June Weather17°C (63°F)133 mm (5.2 inches)82%very high
July Weather19°C (66°F)138 mm (5.4 inches)83%very high
August Weather18°C (65°F)134 mm (5.3 inches)80%very high
September Weather14°C (58°F)86 mm (3.4 inches)83%high
October Weather10°C (50°F)112 mm (4.4 inches)90%moderate
November Weather4°C (40°F)76 mm (3.0 inches)88%low
December Weather1°C (35°F)136 mm (5.3 inches)90%low

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