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December Weather in Ciasna, Poland

Last updated: August 27, 2025

In Ciasna, Poland, the average temperature in December hovers around 2°C (35°F), with extremes ranging from a chilly -13°C (9°F) to a milder 15°C (60°F). Expect 57 mm (2.2 in) of precipitation spread over 12 days, contributing to a notably high average humidity of 92%. Be prepared for a damp and cool atmosphere!

December Temperature in Ciasna

In December in Ciasna, the average temperature is 2°C (35°F). Maximum temperatures can reach 15°C (60°F), while the minimum can drop as low as -13°C (9°F). Be sure to pack warm clothing if you're planning to visit during this time!

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

The chart illustrates December temperature patterns in Ciasna, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ciasna, December typically has an average temperature of 2°C (35°F), with highs reaching up to 15°C (60°F) and lows dropping to around -13°C (9°F).
JanFebMarAprMayJunJulAugSepOctNovDec313440495767686859524335
Data source: Temperature data for Ciasna 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 Ciasna

In Ciasna in December, the precipitation amount is 57 mm (2.2 in) over a span of 12 days.

December Precipitation Trends in Ciasna

The chart displays monthly precipitation patterns in Ciasna, 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 Ciasna, December typically receives around 57 mm (2.2 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec414945538782788381684057
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Ciasna

In Ciasna in December humidity is 92%. With an average temperature of 2°C (35°F), this humidity feels like a damp, chilling fog that clings to your skin, making outdoor activities uncomfortable and travel challenging as you navigate through the heavy, cold air.

December Average Humidity in Ciasna

This chart illustrates the average monthly humidity levels in Ciasna, 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 Ciasna is approximately 92%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%88%86%79%65%66%67%67%72%83%90%92%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Ciasna

In Ciasna in December, the maximum UV index is 1, which corresponds to a low Exposure Category. This means you have a time to burn of 45 minutes. For more details, you can check the Hourly UV Index in Ciasna.

Maximum UV Index Levels in Ciasna for December

The chart shows the monthly maximum UV Index (UVI) for Ciasna 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 Ciasna typically reaches 1, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec224578876321
Data source: Ciasna 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 Ciasna Compares to Other Months

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

This table compares monthly weather conditions in Ciasna, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (32°F)41 mm (1.6 inches)90%low
February Weather1°C (34°F)49 mm (1.9 inches)88%low
March Weather4°C (40°F)45 mm (1.8 inches)86%moderate
April Weather9°C (49°F)53 mm (2.1 inches)79%moderate
May Weather14°C (57°F)87 mm (3.4 inches)65%high
June Weather20°C (68°F)82 mm (3.2 inches)66%very high
July Weather20°C (68°F)78 mm (3.1 inches)67%very high
August Weather20°C (69°F)83 mm (3.3 inches)67%high
September Weather15°C (60°F)81 mm (3.2 inches)72%high
October Weather11°C (52°F)68 mm (2.7 inches)83%moderate
November Weather6°C (43°F)39 mm (1.6 inches)90%low
December Weather2°C (35°F)57 mm (2.2 inches)92%low

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