Last updated: August 22, 2025
In December, the average temperature in Septemvri, Bulgaria hovers around 4°C (39°F). Expect a chilly minimum of -8°C (18°F) and a pleasant maximum of 16°C (61°F). During this month, the region receives approximately 70 mm (2.8 in) of precipitation over 10 days, contributing to a high average humidity of 89%. Prepare for a mix of cool temperatures and occasional rain!
In December in Septemvri, the average temperature is 4°C (39°F), with maximums reaching up to 16°C (61°F) and minimums dipping as low as -8°C (18°F). Travelers should be prepared for a chilly climate and pack accordingly for varying temperatures.
In Septemvri in December, the precipitation amount is 70 mm (2.8 in) over a period of 10 days.
In Septemvri in December humidity is 89%. With an average temperature of 4°C (39°F), this humidity feels like an uninviting chill that seeps into your bones, making travel uncomfortable and necessitating extra layers of clothing to fend off the dampness.
In Septemvri 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 Septemvri, you can visit Hourly UV Index in Septemvri.
UV Risk Categories
Weather in Septemvri varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Septemvri, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 1°C (34°F) | 50 mm (2.0 inches) | 89% | low |
| February Weather | 4°C (40°F) | 54 mm (2.1 inches) | 85% | moderate |
| March Weather | 7°C (45°F) | 74 mm (2.9 inches) | 83% | high |
| April Weather | 11°C (53°F) | 62 mm (2.4 inches) | 71% | very high |
| May Weather | 17°C (62°F) | 53 mm (2.1 inches) | 73% | very high |
| June Weather | 20°C (69°F) | 75 mm (2.9 inches) | 67% | very high |
| July Weather | 23°C (74°F) | 48 mm (1.9 inches) | 68% | very high |
| August Weather | 24°C (75°F) | 27 mm (1.0 inches) | 50% | very high |
| September Weather | 19°C (67°F) | 24 mm (1.0 inches) | 59% | high |
| October Weather | 13°C (56°F) | 56 mm (2.2 inches) | 79% | high |
| November Weather | 8°C (47°F) | 64 mm (2.5 inches) | 87% | moderate |
| December Weather | 4°C (39°F) | 70 mm (2.8 inches) | 89% | low |