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December Weather in Bystra, Poland

Last updated: August 27, 2025

In December, the average temperature in Bystra, Poland hovers around 1°C (34°F). Temperatures can fluctuate between a brisk -13°C (9°F) and a mild 14°C (58°F). Expect 89 mm (3.5 in) of precipitation spread over 15 days, contributing to a notably high average humidity of 91%.

December Temperature in Bystra

In December in Bystra, the average temperature is 1°C (34°F). The maximum can reach 14°C (58°F), while the minimum can plunge as low as -13°C (9°F). Be sure to pack warm clothing 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 1°C (34°F), with highs reaching up to 14°C (58°F) and lows dropping to around -13°C (9°F).
JanFebMarAprMayJunJulAugSepOctNovDec293338465464656657504133
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 89 mm (3.5 in) during 15 days of the month.

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 89 mm (3.5 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec587663751321001231371231025689
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 1°C (34°F), this humidity feels like an icy embrace, making traveling quite challenging as the air feels heavy and damp, leaving everything damp and cold, and requiring extra layers for comfort.

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.
JanFebMarAprMayJunJulAugSepOctNovDec224678876421
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)58 mm (2.3 inches)90%low
February Weather1°C (34°F)76 mm (3.0 inches)87%low
March Weather3°C (38°F)63 mm (2.5 inches)83%moderate
April Weather8°C (47°F)75 mm (2.9 inches)76%high
May Weather12°C (55°F)132 mm (5.2 inches)70%high
June Weather18°C (64°F)100 mm (3.9 inches)71%very high
July Weather18°C (65°F)123 mm (4.9 inches)67%very high
August Weather19°C (66°F)137 mm (5.4 inches)64%high
September Weather14°C (57°F)123 mm (4.9 inches)67%high
October Weather10°C (50°F)102 mm (4.0 inches)83%moderate
November Weather5°C (42°F)56 mm (2.2 inches)90%low
December Weather1°C (34°F)89 mm (3.5 inches)91%low

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