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December Weather in Stamboliyski, Bulgaria

Last updated: August 22, 2025

In December, the average temperature in Stamboliyski, Bulgaria hovers around 4°C (40°F). Expect chilly conditions, with minimums dipping to -8°C (18°F) and maximums reaching 17°C (64°F). Additionally, prepare for 63 mm (2.5 in) of precipitation spread over 10 days, contributing to a high average humidity of 89%.

December Temperature in Stamboliyski

In December in Stamboliyski, the average temperature is 4°C (40°F). Maximum temperatures can reach 17°C (64°F), while minimums can drop as low as -8°C (18°F). Be prepared for fluctuating temperatures and pack accordingly for a comfortable trip!

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

The chart illustrates December temperature patterns in Stamboliyski, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Stamboliyski, December typically has an average temperature of 4°C (40°F), with highs reaching up to 17°C (64°F) and lows dropping to around -8°C (18°F).
JanFebMarAprMayJunJulAugSepOctNovDec354045546371767768574740
Data source: Temperature data for Stamboliyski 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 Stamboliyski

In Stamboliyski in December, the precipitation amount is 63 mm (2.5 in) over a span of 10 days.

December Precipitation Trends in Stamboliyski

The chart displays monthly precipitation patterns in Stamboliyski, 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 Stamboliyski, December typically receives around 63 mm (2.5 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec444866575279462821525763
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Stamboliyski

In Stamboliyski in December humidity is 89%. With an average temperature of 4°C (40°F), this humidity feels like a chilling blanket enveloping you, making travel uncomfortable and damp, as the cold penetrates through your clothes and the air feels heavy and clinging.

December Average Humidity in Stamboliyski

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

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

Maximum UV Index Levels in Stamboliyski for December

The chart shows the monthly maximum UV Index (UVI) for Stamboliyski 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 Stamboliyski typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2478910997632
Data source: Stamboliyski 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 Stamboliyski Compares to Other Months

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

This table compares monthly weather conditions in Stamboliyski, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather2°C (35°F)44 mm (1.7 inches)89%low
February Weather4°C (40°F)48 mm (1.9 inches)85%moderate
March Weather7°C (46°F)66 mm (2.6 inches)83%high
April Weather12°C (54°F)57 mm (2.2 inches)71%very high
May Weather17°C (64°F)52 mm (2.1 inches)73%very high
June Weather22°C (71°F)79 mm (3.1 inches)67%very high
July Weather24°C (76°F)45 mm (1.8 inches)68%very high
August Weather25°C (77°F)28 mm (1.1 inches)50%very high
September Weather20°C (68°F)21 mm (0.8 inches)59%high
October Weather14°C (57°F)52 mm (2.1 inches)79%high
November Weather8°C (47°F)57 mm (2.3 inches)87%moderate
December Weather4°C (40°F)63 mm (2.5 inches)89%low

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