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December Weather in Chelm, Poland

Last updated: August 27, 2025

In December, the average temperature in Chelm, Poland hovers around 1°C (34°F), with temperatures ranging from a brisk -13°C (9°F) to a mild 13°C (55°F). Expect 55 mm (2.2 in) of precipitation over approximately 14 days, contributing to an average humidity of a notable 92%. Stay prepared for a chilly and damp month!

December Temperature in Chelm

In December in Chelm, the average temperature is 1°C (34°F). Maximums can reach 13°C (55°F) and minimums can be as low as -13°C (9°F). Be prepared for a chilly adventure and dress in layers to enjoy your travels comfortably.

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

The chart illustrates December temperature patterns in Chelm, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Chelm, December typically has an average temperature of 1°C (34°F), with highs reaching up to 13°C (55°F) and lows dropping to around -13°C (9°F).
JanFebMarAprMayJunJulAugSepOctNovDec303238485767686758504134
Data source: Temperature data for Chelm 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 Chelm

In Chelm in December, the total precipitation amount is 55 mm (2.2 in) over a duration of 14 days.

December Precipitation Trends in Chelm

The chart displays monthly precipitation patterns in Chelm, 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 Chelm, December typically receives around 55 mm (2.2 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec394843458589899082603655
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Chelm

In Chelm in December humidity is 92%. With average temperature 1°C (34°F), this humidity feels like a cold, damp blanket enveloping you, making travel uncomfortable as the chill seeps into your bones, and the air feels heavy and suffocating, leaving little room for any warmth or comfort.

December Average Humidity in Chelm

This chart illustrates the average monthly humidity levels in Chelm, 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 Chelm is approximately 92%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec92%90%88%77%62%61%61%60%70%86%90%92%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Chelm

In Chelm 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 Chelm.

Maximum UV Index Levels in Chelm for December

The chart shows the monthly maximum UV Index (UVI) for Chelm 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 Chelm typically reaches 1, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124578876321
Data source: Chelm 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 Chelm Compares to Other Months

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

This table compares monthly weather conditions in Chelm, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (30°F)39 mm (1.5 inches)92%low
February Weather0°C (32°F)48 mm (1.9 inches)89%low
March Weather3°C (38°F)42 mm (1.7 inches)87%moderate
April Weather9°C (48°F)45 mm (1.8 inches)77%moderate
May Weather14°C (57°F)85 mm (3.4 inches)62%high
June Weather20°C (67°F)89 mm (3.5 inches)61%very high
July Weather20°C (68°F)89 mm (3.5 inches)60%very high
August Weather20°C (68°F)90 mm (3.5 inches)60%high
September Weather15°C (59°F)82 mm (3.2 inches)70%high
October Weather10°C (50°F)60 mm (2.4 inches)86%moderate
November Weather5°C (41°F)36 mm (1.4 inches)90%low
December Weather1°C (34°F)55 mm (2.2 inches)92%low

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