Last updated: August 22, 2025
In December, the average temperature in Yambol, Bulgaria hovers around 5°C (42°F). Expect a chill in the air, with minimums dropping to -6°C (21°F) and maximums reaching up to 18°C (65°F). This month brings about 80 mm (3.1 in) of precipitation over approximately 11 days, while the average humidity sits at a high 87%. Prepare accordingly for a month of varied weather!
In December in Yambol, the average temperature is 5°C (42°F). The maximum can reach 18°C (65°F), while the minimum can drop as low as -6°C (21°F). Travelers should be prepared for a wide range of temperatures and pack accordingly for both cool and relatively warm days.
In Yambol in December, the precipitation amount is 80 mm (3.1 in) spread over a duration of 11 days.
In Yambol in December humidity is 87%. With an average temperature of 5°C (42°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities less enjoyable and travel less inviting as the air becomes heavy and oppressive.
In Yambol 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 Yambol, you can visit Hourly UV Index in Yambol.
UV Risk Categories
Weather in Yambol varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Yambol, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 2°C (37°F) | 57 mm (2.2 inches) | 88% | low |
| February Weather | 5°C (41°F) | 47 mm (1.8 inches) | 84% | moderate |
| March Weather | 7°C (45°F) | 59 mm (2.3 inches) | 81% | high |
| April Weather | 12°C (53°F) | 44 mm (1.7 inches) | 70% | high |
| May Weather | 17°C (63°F) | 43 mm (1.7 inches) | 72% | very high |
| June Weather | 21°C (71°F) | 78 mm (3.1 inches) | 66% | very high |
| July Weather | 24°C (76°F) | 39 mm (1.5 inches) | 62% | very high |
| August Weather | 25°C (77°F) | 17 mm (0.7 inches) | 48% | very high |
| September Weather | 21°C (69°F) | 18 mm (0.7 inches) | 58% | high |
| October Weather | 14°C (58°F) | 63 mm (2.5 inches) | 78% | high |
| November Weather | 9°C (49°F) | 52 mm (2.0 inches) | 85% | moderate |
| December Weather | 5°C (42°F) | 80 mm (3.1 inches) | 87% | low |