Last updated: August 22, 2025
In December, the average temperature in Koynare, Bulgaria hovers around 3°C (38°F). Expect chilly nights with a minimum that can drop to -11°C (13°F), while daytime highs may reach up to 17°C (62°F). With 61 mm (2.4 in) of precipitation spread over 11 days, and an average humidity of 89%, you'll want to come prepared for the damp, cold weather.
In December in Koynare, the average temperature is 3°C (38°F). Maximum temperatures can reach 17°C (62°F), while minimums can drop as low as -11°C (13°F). Travelers should be prepared for chilly days and potentially colder nights while enjoying the sights of Koynare.
In Koynare in December, the total precipitation amount is 61 mm (2.4 in) over the course of 11 days.
In Koynare 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 Koynare 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 Koynare, you can visit Hourly UV Index in Koynare.
UV Risk Categories
Weather in Koynare varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Koynare, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 1°C (33°F) | 50 mm (2.0 inches) | 89% | low |
| February Weather | 4°C (40°F) | 50 mm (2.0 inches) | 85% | moderate |
| March Weather | 7°C (45°F) | 83 mm (3.3 inches) | 83% | high |
| April Weather | 12°C (54°F) | 48 mm (1.9 inches) | 71% | high |
| May Weather | 17°C (63°F) | 80 mm (3.2 inches) | 73% | very high |
| June Weather | 21°C (70°F) | 96 mm (3.8 inches) | 67% | very high |
| July Weather | 23°C (74°F) | 79 mm (3.1 inches) | 68% | very high |
| August Weather | 24°C (75°F) | 29 mm (1.1 inches) | 50% | very high |
| September Weather | 20°C (67°F) | 19 mm (0.7 inches) | 59% | high |
| October Weather | 13°C (56°F) | 65 mm (2.5 inches) | 79% | moderate |
| November Weather | 8°C (46°F) | 50 mm (2.0 inches) | 87% | moderate |
| December Weather | 3°C (38°F) | 61 mm (2.4 inches) | 89% | low |