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December Weather in Opaka, Bulgaria

Last updated: August 22, 2025

In December, the average temperature in Opaka, Bulgaria hovers at a brisk 3°C (38°F). While the mercury can dip to a frigid -10°C (14°F), it may also rise to a pleasant 17°C (63°F). Expect 66 mm (2.6 in) of precipitation over approximately 13 days, accompanied by a high average humidity of 87%.

December Temperature in Opaka

In December in Opaka, the average temperature is 3°C (38°F). Maximum temperatures can reach 17°C (63°F), while the minimum can drop as low as -10°C (14°F). Be sure to pack accordingly if you're traveling during this time!

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

The chart illustrates December temperature patterns in Opaka, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Opaka, December typically has an average temperature of 3°C (38°F), with highs reaching up to 17°C (63°F) and lows dropping to around -10°C (14°F).
JanFebMarAprMayJunJulAugSepOctNovDec333843526269737567564638
Data source: Temperature data for Opaka 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 Opaka

In Opaka in December, the total precipitation amount is 66 mm (2.6 in) spread over the course of 13 days.

December Precipitation Trends in Opaka

The chart displays monthly precipitation patterns in Opaka, 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 Opaka, December typically receives around 66 mm (2.6 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec4448704071135823123605166
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Opaka

In Opaka in December humidity is 87%. With an average temperature of 3°C (38°F), this humidity feels like a chilly blanket wrapped around you, making travel quite uncomfortable as the cold dampness seeps into your clothes and lingers in the air, often leaving you shivering and longing for warmer, drier conditions.

December Average Humidity in Opaka

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

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

Maximum UV Index Levels in Opaka for December

The chart shows the monthly maximum UV Index (UVI) for Opaka 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 Opaka typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec246789997532
Data source: Opaka 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 Opaka Compares to Other Months

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

This table compares monthly weather conditions in Opaka, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (34°F)44 mm (1.7 inches)88%low
February Weather4°C (39°F)48 mm (1.9 inches)84%moderate
March Weather6°C (43°F)70 mm (2.7 inches)81%high
April Weather11°C (53°F)40 mm (1.6 inches)70%high
May Weather17°C (62°F)71 mm (2.8 inches)72%very high
June Weather21°C (69°F)135 mm (5.3 inches)66%very high
July Weather23°C (73°F)82 mm (3.2 inches)62%very high
August Weather24°C (75°F)31 mm (1.2 inches)48%very high
September Weather19°C (67°F)23 mm (0.9 inches)58%high
October Weather13°C (56°F)60 mm (2.3 inches)78%moderate
November Weather8°C (47°F)51 mm (2.0 inches)85%moderate
December Weather3°C (38°F)66 mm (2.6 inches)87%low

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