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December Weather in Tran, Bulgaria

Last updated: August 22, 2025

In December, the average temperature in Tran, Bulgaria hovers around 1°C (34°F). During this month, you might experience a minimum chill of -15°C (6°F) and a pleasant maximum of 12°C (54°F). Be prepared for a precipitation amount of 86 mm (3.4 in) spread over 12 days, creating a rather humid atmosphere with an average humidity level of 89%.

December Temperature in Tran

In December in Tran, the average temperature is 1°C (34°F). The maximum can reach 12°C (54°F), while the minimum can dip as low as -15°C (6°F). Be sure to pack warm clothing if you're planning to visit!

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

The chart illustrates December temperature patterns in Tran, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Tran, December typically has an average temperature of 1°C (34°F), with highs reaching up to 12°C (54°F) and lows dropping to around -15°C (6°F).
JanFebMarAprMayJunJulAugSepOctNovDec293640485663676860504234
Data source: Temperature data for Tran 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 Tran

In Tran in December, the precipitation amount is 86 mm (3.4 in) over a span of 12 days.

December Precipitation Trends in Tran

The chart displays monthly precipitation patterns in Tran, 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 Tran, December typically receives around 86 mm (3.4 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec625284687787784035544286
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Tran

In Tran in December humidity is 89%. With an average temperature of 1°C (34°F), this humidity feels like a chilling dampness that seeps into your bones, making travel uncomfortable and requiring extra layers to combat the cold and moisture.

December Average Humidity in Tran

This chart illustrates the average monthly humidity levels in Tran, 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 Tran is approximately 89%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%85%83%71%73%67%68%50%59%79%87%89%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Tran

In Tran 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 Tran, you can visit Hourly UV Index in Tran.

Maximum UV Index Levels in Tran for December

The chart shows the monthly maximum UV Index (UVI) for Tran 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 Tran typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec24779101097632
Data source: Tran 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 Tran Compares to Other Months

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

This table compares monthly weather conditions in Tran, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (29°F)62 mm (2.5 inches)89%low
February Weather2°C (36°F)52 mm (2.0 inches)85%moderate
March Weather4°C (40°F)84 mm (3.3 inches)83%high
April Weather9°C (48°F)68 mm (2.7 inches)71%high
May Weather13°C (56°F)77 mm (3.0 inches)73%very high
June Weather17°C (63°F)86 mm (3.4 inches)67%very high
July Weather19°C (67°F)78 mm (3.1 inches)68%very high
August Weather20°C (68°F)40 mm (1.6 inches)50%very high
September Weather16°C (60°F)35 mm (1.4 inches)59%high
October Weather10°C (50°F)54 mm (2.1 inches)79%high
November Weather5°C (42°F)42 mm (1.7 inches)87%moderate
December Weather1°C (34°F)86 mm (3.4 inches)89%low

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