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December Weather in Bionaz, Italy

Last updated: August 23, 2025

In December, the average temperature in Bionaz, Italy hovers around -8°C (18°F), with a potential dip to a chilling -24°C (-11°F) and a maximum of 4°C (39°F). Expect 123 mm (4.8 in) of precipitation spread across about 15 days, coupled with a notable 90% humidity. Prepare for a wintery mix that defines the season!

December Temperature in Bionaz

In December in Bionaz, the average temperature is -8°C (18°F). The maximum can reach 4°C (39°F), while the minimum can drop as low as -24°C (-11°F). Be prepared for cold weather and dress in layers to stay warm during your travels.

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

The chart illustrates December temperature patterns in Bionaz, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Bionaz, December typically has an average temperature of -8°C (18°F), with highs reaching up to 4°C (39°F) and lows dropping to around -24°C (-11°F).
JanFebMarAprMayJunJulAugSepOctNovDec152125323950545346382618
Data source: Temperature data for Bionaz 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 Bionaz

In Bionaz in December, the precipitation amount is 123 mm (4.8 in), occurring over a span of 15 days.

December Precipitation Trends in Bionaz

The chart displays monthly precipitation patterns in Bionaz, 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 Bionaz, December typically receives around 123 mm (4.8 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec9462911021361118610064142136123
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Bionaz

In Bionaz in December, humidity is 90%. With an average temperature of -8°C (18°F), this humidity feels like an icy fog wrapping around you, making every breath sharp and crisp, and requiring careful planning for travel to avoid the chill while navigating the damp air.

December Average Humidity in Bionaz

This chart illustrates the average monthly humidity levels in Bionaz, 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 Bionaz is approximately 90%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%87%84%83%78%75%72%63%73%89%91%90%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Bionaz

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

Maximum UV Index Levels in Bionaz for December

The chart shows the monthly maximum UV Index (UVI) for Bionaz 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 Bionaz typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec24789101097532
Data source: Bionaz 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 Bionaz Compares to Other Months

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

This table compares monthly weather conditions in Bionaz, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-9°C (15°F)94 mm (3.7 inches)91%low
February Weather-6°C (21°F)62 mm (2.4 inches)87%moderate
March Weather-4°C (25°F)91 mm (3.6 inches)84%high
April Weather0°C (32°F)102 mm (4.0 inches)83%very high
May Weather4°C (40°F)136 mm (5.4 inches)78%very high
June Weather10°C (50°F)110 mm (4.3 inches)75%very high
July Weather12°C (54°F)86 mm (3.4 inches)72%very high
August Weather12°C (54°F)100 mm (4.0 inches)63%very high
September Weather8°C (47°F)64 mm (2.5 inches)73%high
October Weather3°C (38°F)142 mm (5.6 inches)89%moderate
November Weather-3°C (27°F)136 mm (5.3 inches)90%moderate
December Weather-8°C (18°F)123 mm (4.8 inches)90%low

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