Last updated: August 27, 2025
In December, the average temperature in Brestanica, Slovenia hovers around 3°C (37°F). Expect a chill in the air, with minimums dropping to -9°C (15°F), while it can peak at a comfortable 18°C (64°F). Be prepared for occasional rain, as 89 mm (3.5 in) of precipitation is typical over about 10 days. With an average humidity of 88%, it’s a month where you’ll definitely feel the moisture in the air.
In December in Brestanica, the average temperature is 3°C (37°F). The maximum can reach 18°C (64°F), while the minimum can drop as low as -9°C (15°F). Travelers should be prepared for a mix of chilly and mild weather during this time.
In Brestanica in December, the precipitation amount is 89 mm (3.5 in) over a period of 10 days.
In Brestanica in December, humidity is 88%. With an average temperature of 3°C (37°F), this humidity feels like a chilling fog that clings to your skin, making every step outside a damp and brisk challenge for travelers.
In Brestanica 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 Brestanica, you can visit Hourly UV Index in Brestanica.
UV Risk Categories
Weather in Brestanica varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Brestanica, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 1°C (34°F) | 40 mm (1.6 inches) | 89% | low |
| February Weather | 4°C (40°F) | 65 mm (2.5 inches) | 83% | moderate |
| March Weather | 7°C (45°F) | 54 mm (2.1 inches) | 75% | moderate |
| April Weather | 12°C (53°F) | 70 mm (2.7 inches) | 72% | high |
| May Weather | 16°C (61°F) | 141 mm (5.6 inches) | 70% | very high |
| June Weather | 21°C (70°F) | 90 mm (3.6 inches) | 69% | very high |
| July Weather | 22°C (72°F) | 96 mm (3.8 inches) | 64% | very high |
| August Weather | 22°C (73°F) | 88 mm (3.5 inches) | 51% | very high |
| September Weather | 17°C (63°F) | 126 mm (4.9 inches) | 62% | high |
| October Weather | 12°C (54°F) | 79 mm (3.1 inches) | 81% | moderate |
| November Weather | 7°C (45°F) | 96 mm (3.8 inches) | 87% | moderate |
| December Weather | 3°C (37°F) | 89 mm (3.5 inches) | 88% | low |