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December Weather in Kermen, Bulgaria

Last updated: August 22, 2025

In December, the average temperature in Kermen, Bulgaria hovers around 5°C (41°F), with a minimum drop to -6°C (22°F) and a maximum rise to 18°C (65°F). Expect 80 mm (3.1 in) of precipitation over 11 days, accompanied by a high average humidity of 87%. Prepare for a mild yet moist month!

December Temperature in Kermen

In December in Kermen, the climate can vary significantly, so it's wise to pack layers to stay comfortable throughout the day.

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

The chart illustrates December temperature patterns in Kermen, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kermen, December typically has an average temperature of 5°C (41°F), with highs reaching up to 18°C (65°F) and lows dropping to around -6°C (22°F).
JanFebMarAprMayJunJulAugSepOctNovDec364145546371767769584941
Data source: Temperature data for Kermen 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 Kermen

In Kermen in December, the precipitation amount is 80 mm (3.1 in) spread over a duration of 11 days.

December Precipitation Trends in Kermen

The chart displays monthly precipitation patterns in Kermen, 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 Kermen, December typically receives around 80 mm (3.1 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec514458404573391416645380
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Kermen

In Kermen in December humidity is 87%. With an average temperature of 5°C (41°F), this humidity feels like a heavy, damp blanket enveloping you, making every step seem laborious and the chill more biting, which can be quite challenging for traveling.

December Average Humidity in Kermen

This chart illustrates the average monthly humidity levels in Kermen, 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 Kermen is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%84%81%70%72%66%62%48%58%78%85%87%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Kermen

In Kermen in December, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Kermen, you can visit Hourly UV Index in Kermen.

Maximum UV Index Levels in Kermen for December

The chart shows the monthly maximum UV Index (UVI) for Kermen 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 Kermen typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec246799997632
Data source: Kermen 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 Kermen Compares to Other Months

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

This table compares monthly weather conditions in Kermen, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather2°C (36°F)51 mm (2.0 inches)88%low
February Weather5°C (41°F)44 mm (1.7 inches)84%moderate
March Weather7°C (45°F)57 mm (2.3 inches)81%high
April Weather12°C (54°F)40 mm (1.6 inches)70%high
May Weather17°C (64°F)44 mm (1.8 inches)72%very high
June Weather22°C (71°F)73 mm (2.9 inches)66%very high
July Weather25°C (76°F)39 mm (1.5 inches)62%very high
August Weather25°C (78°F)13 mm (0.5 inches)48%very high
September Weather21°C (70°F)16 mm (0.6 inches)58%high
October Weather14°C (58°F)64 mm (2.5 inches)78%high
November Weather9°C (49°F)53 mm (2.1 inches)85%moderate
December Weather5°C (41°F)80 mm (3.1 inches)87%low

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