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December Weather in Giswil, Switzerland

Last updated: August 27, 2025

In Giswil, Switzerland, the average temperature in December is a chilly -5°C (24°F). Temperatures can dip as low as -18°C (0°F), while the maximum can reach 6°C (43°F). Expect 188 mm (7.4 in) of precipitation over approximately 19 days, contributing to the high average humidity of 90%. Stay warm and prepared for wet weather during this frosty month!

December Temperature in Giswil

In December in Giswil, the average temperature is -5°C (24°F), with maximums reaching 6°C (43°F) and minimums plunging as low as -18°C (0°F). Be prepared for a chilly adventure, and make sure to dress warmly when exploring this winter wonderland!

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

The chart illustrates December temperature patterns in Giswil, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Giswil, December typically has an average temperature of -5°C (24°F), with highs reaching up to 6°C (43°F) and lows dropping to around -18°C (0°F).
JanFebMarAprMayJunJulAugSepOctNovDec212529354252555448413124
Data source: Temperature data for Giswil 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 Giswil

In Giswil in December, the precipitation amount is 188 mm (7.4 in), which occurs over 19 days.

December Precipitation Trends in Giswil

The chart displays monthly precipitation patterns in Giswil, 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 Giswil, December typically receives around 188 mm (7.4 inches) of precipitation spread over approximately 19 days.
JanFebMarAprMayJunJulAugSepOctNovDec140104132101169225244255161177109188
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Giswil

In Giswil in December, humidity is 90%. With an average temperature of -5°C (24°F), this humidity feels like an icy mist wrapping around you, making every breath feel heavy and damp, while the cold sharpens the chill in the air, turning your travel experience into a battle against the harsh elements.

December Average Humidity in Giswil

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

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

Maximum UV Index Levels in Giswil for December

The chart shows the monthly maximum UV Index (UVI) for Giswil 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 Giswil typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec24689101097532
Data source: Giswil 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 Giswil Compares to Other Months

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

This table compares monthly weather conditions in Giswil, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-6°C (21°F)140 mm (5.5 inches)92%low
February Weather-4°C (25°F)104 mm (4.1 inches)89%moderate
March Weather-2°C (29°F)132 mm (5.2 inches)87%high
April Weather2°C (35°F)101 mm (4.0 inches)84%very high
May Weather6°C (42°F)169 mm (6.7 inches)80%very high
June Weather11°C (52°F)225 mm (8.9 inches)82%very high
July Weather13°C (55°F)244 mm (9.6 inches)83%very high
August Weather12°C (55°F)255 mm (10.0 inches)80%very high
September Weather9°C (48°F)161 mm (6.4 inches)83%high
October Weather5°C (41°F)177 mm (7.0 inches)90%moderate
November Weather-1°C (31°F)109 mm (4.3 inches)88%moderate
December Weather-5°C (24°F)188 mm (7.4 inches)90%low

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