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December Weather in Bystra, Poland

Last updated: August 27, 2025

In December, the average temperature in Bystra, Poland hovers around 0°C (33°F). The minimum can plunge to -11°C (12°F), while the maximum rises to a mild 14°C (57°F). Expect 79 mm (3.1 in) of precipitation spread over 15 days, contributing to an average humidity of 91%. Be prepared for a damp and chilly month!

December Temperature in Bystra

In December in Bystra, the average temperature is 0°C (33°F). Maximums can reach 14°C (57°F), while minimums can drop as low as -11°C (12°F). Be prepared for chilly weather and dress in layers to stay comfortable during your travels.

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

The chart illustrates December temperature patterns in Bystra, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Bystra, December typically has an average temperature of 0°C (33°F), with highs reaching up to 14°C (57°F) and lows dropping to around -11°C (12°F).
JanFebMarAprMayJunJulAugSepOctNovDec303338465464646557494033
Data source: Temperature data for Bystra 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 Bystra

In Bystra in December, the precipitation amount is 79 mm (3.1 in) spread over 15 days.

December Precipitation Trends in Bystra

The chart displays monthly precipitation patterns in Bystra, 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 Bystra, December typically receives around 79 mm (3.1 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec49725677136107125144124965679
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Bystra

In Bystra in December, humidity is 91%. With an average temperature of 0°C (33°F), this humidity feels like an icy dampness that seeps into your bones, making every step feel heavier and requiring extra layers to stay warm while traveling.

December Average Humidity in Bystra

This chart illustrates the average monthly humidity levels in Bystra, 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 Bystra is approximately 91%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%87%83%76%70%71%67%64%67%83%90%91%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Bystra

In Bystra 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 Bystra.

Maximum UV Index Levels in Bystra for December

The chart shows the monthly maximum UV Index (UVI) for Bystra 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 Bystra typically reaches 1, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235679876421
Data source: Bystra 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 Bystra Compares to Other Months

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

This table compares monthly weather conditions in Bystra, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (30°F)49 mm (1.9 inches)90%low
February Weather1°C (33°F)71 mm (2.8 inches)87%moderate
March Weather3°C (38°F)56 mm (2.2 inches)83%moderate
April Weather8°C (46°F)77 mm (3.0 inches)76%high
May Weather12°C (54°F)136 mm (5.3 inches)70%high
June Weather18°C (64°F)107 mm (4.2 inches)71%very high
July Weather18°C (65°F)125 mm (4.9 inches)67%very high
August Weather18°C (65°F)144 mm (5.7 inches)64%high
September Weather14°C (57°F)124 mm (4.9 inches)67%high
October Weather9°C (49°F)96 mm (3.8 inches)83%moderate
November Weather5°C (40°F)56 mm (2.2 inches)90%low
December Weather0°C (33°F)79 mm (3.1 inches)91%low

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