Last updated: August 22, 2025
In December, the average temperature in Slavyanovo, Bulgaria hovers around 3°C (38°F). Expect a chilly atmosphere, with minimum temperatures dropping to -13°C (9°F) and highs reaching up to 17°C (63°F). During this month, precipitation totals 54 mm (2.1 in) over approximately 10 days, while the average humidity remains high at 89%. Bundle up and prepare for a mix of cool weather and occasional rain!
In December in Slavyanovo, the average temperature is 3°C (38°F). The maximum can reach 17°C (63°F), while the minimum can drop as low as -13°C (9°F). Travelers should be prepared for a wide range of temperatures and pack accordingly.
In Slavyanovo in December, the total precipitation amount is 54 mm (2.1 in) over the course of 10 days.
In Slavyanovo in December, humidity is 89%. With an average temperature of 3°C (38°F), this humidity feels like a chilly blanket wrapping around you, making travel uncomfortable as the dampness seeps into your clothes and lingers in the air, leaving you feeling cold and clammy.
In Slavyanovo 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 Slavyanovo, you can visit Hourly UV Index in Slavyanovo.
UV Risk Categories
Weather in Slavyanovo varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Slavyanovo, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 1°C (33°F) | 42 mm (1.6 inches) | 89% | low |
| February Weather | 4°C (39°F) | 45 mm (1.8 inches) | 85% | moderate |
| March Weather | 7°C (45°F) | 76 mm (3.0 inches) | 83% | high |
| April Weather | 12°C (55°F) | 42 mm (1.6 inches) | 71% | high |
| May Weather | 18°C (64°F) | 75 mm (3.0 inches) | 73% | very high |
| June Weather | 22°C (71°F) | 109 mm (4.3 inches) | 67% | very high |
| July Weather | 24°C (75°F) | 103 mm (4.1 inches) | 68% | very high |
| August Weather | 24°C (76°F) | 36 mm (1.4 inches) | 50% | very high |
| September Weather | 20°C (68°F) | 16 mm (0.6 inches) | 59% | high |
| October Weather | 13°C (56°F) | 64 mm (2.5 inches) | 79% | moderate |
| November Weather | 8°C (46°F) | 45 mm (1.8 inches) | 87% | moderate |
| December Weather | 3°C (38°F) | 54 mm (2.1 inches) | 89% | low |