Last updated: August 22, 2025
In December, the average temperature in Zemen, Bulgaria hovers around 1°C (35°F), with a chilly minimum of -12°C (11°F) and a moderately warm maximum of 12°C (54°F). Expect 92 mm (3.6 in) of precipitation spread over about 13 days, accompanied by an average humidity of 89%. Be prepared for a damp and frosty month!
In December in Zemen, the average temperature is 1°C (35°F). Maximums can reach 12°C (54°F), while minimums can drop as low as -12°C (11°F). It's advisable to pack warm clothing and prepare for chilly weather if you're planning to travel during this time.
In Zemen in December, the precipitation amount is 92 mm (3.6 in) spread over 13 days.
In Zemen in December humidity is 89%. With an average temperature of 1°C (35°F), this humidity feels like a chilly dampness enveloping you, making traveling quite uncomfortable as every breath brings a lingering chill and the air feels heavy, often leading to a sense of unease as you navigate through the damp conditions.
In Zemen 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 Zemen, you can visit Hourly UV Index in Zemen.
UV Risk Categories
Weather in Zemen varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Zemen, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -1°C (30°F) | 64 mm (2.5 inches) | 89% | low |
| February Weather | 2°C (36°F) | 53 mm (2.1 inches) | 85% | moderate |
| March Weather | 5°C (41°F) | 87 mm (3.4 inches) | 83% | high |
| April Weather | 9°C (49°F) | 72 mm (2.8 inches) | 71% | very high |
| May Weather | 14°C (57°F) | 80 mm (3.1 inches) | 73% | very high |
| June Weather | 17°C (64°F) | 97 mm (3.8 inches) | 67% | very high |
| July Weather | 20°C (68°F) | 84 mm (3.3 inches) | 68% | very high |
| August Weather | 20°C (69°F) | 42 mm (1.6 inches) | 50% | very high |
| September Weather | 16°C (61°F) | 41 mm (1.6 inches) | 59% | high |
| October Weather | 10°C (51°F) | 54 mm (2.1 inches) | 79% | high |
| November Weather | 6°C (43°F) | 45 mm (1.8 inches) | 87% | moderate |
| December Weather | 1°C (35°F) | 92 mm (3.6 inches) | 89% | low |