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December Weather in Bytom, Poland

Last updated: August 27, 2025

In December, the average temperature in Bytom, Poland hovers around 2°C (35°F), with a minimum dip to -11°C (12°F) and a pleasant maximum reaching 15°C (59°F). Expect 60 mm (2.4 in) of precipitation spread across about 13 days, contributing to a high average humidity of 92%. Stay prepared for cool and damp weather!

December Temperature in Bytom

In December in Bytom, the average temperature is 2°C (35°F). Maximums can reach 15°C (59°F), and minimums can drop as low as -11°C (12°F). Travelers should be prepared for a mix of chilly and mild weather conditions during this time.

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

The chart illustrates December temperature patterns in Bytom, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Bytom, December typically has an average temperature of 2°C (35°F), with highs reaching up to 15°C (59°F) and lows dropping to around -11°C (12°F).
JanFebMarAprMayJunJulAugSepOctNovDec313540485767686859514335
Data source: Temperature data for Bytom 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 Bytom

In Bytom in December, the precipitation amount is 60 mm (2.4 in) over a span of 13 days.

December Precipitation Trends in Bytom

The chart displays monthly precipitation patterns in Bytom, 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 Bytom, December typically receives around 60 mm (2.4 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec4156485791828410196734660
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Bytom

In Bytom 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 Bytom

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

In Bytom 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 Bytom.

Maximum UV Index Levels in Bytom for December

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

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

This table compares monthly weather conditions in Bytom, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (31°F)41 mm (1.6 inches)90%low
February Weather1°C (35°F)56 mm (2.2 inches)88%low
March Weather4°C (40°F)48 mm (1.9 inches)86%moderate
April Weather9°C (49°F)57 mm (2.2 inches)79%moderate
May Weather14°C (57°F)91 mm (3.6 inches)65%high
June Weather19°C (67°F)82 mm (3.2 inches)66%very high
July Weather20°C (68°F)84 mm (3.3 inches)67%very high
August Weather20°C (68°F)101 mm (4.0 inches)67%high
September Weather15°C (60°F)96 mm (3.8 inches)72%high
October Weather11°C (52°F)73 mm (2.9 inches)83%moderate
November Weather6°C (43°F)46 mm (1.8 inches)90%low
December Weather2°C (35°F)60 mm (2.4 inches)92%low

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