Last updated: August 31, 2025
In Sliac, Slovakia, the average temperature in December hovers around 0°C (32°F), with minimums plummeting to -18°C (0°F) and a maximum of 10°C (50°F). Expect 75 mm (3.0 in) of precipitation spread over 13 days, accompanied by a high average humidity of 91%. Be prepared for a chilly and wet atmosphere!
In December in Sliac, the average temperature is 0°C (32°F). The maximum can reach 10°C (50°F), and the minimum can be as low as -18°C (0°F). When planning your trip, be sure to pack warm clothing to stay comfortable in the chilly conditions.
In Sliac in December, the precipitation amount is 75 mm (3.0 in) over the course of 13 days.
In Sliac in December, humidity is 91%. With an average temperature of 0°C (32°F), this humidity feels like a damp chill that penetrates your clothes, making every movement feel heavy and uncomfortable for traveling.
In Sliac in December, the maximum UV index is 1, which corresponds to a low Exposure Category. This means you have a time to burn of 45 minutes. For more details, you can check the Hourly UV Index in Sliac.
UV Risk Categories
Weather in Sliac varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Sliac, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -2°C (28°F) | 37 mm (1.4 inches) | 90% | low |
| February Weather | 1°C (33°F) | 56 mm (2.2 inches) | 87% | moderate |
| March Weather | 4°C (39°F) | 48 mm (1.9 inches) | 83% | moderate |
| April Weather | 8°C (47°F) | 58 mm (2.3 inches) | 76% | high |
| May Weather | 13°C (55°F) | 111 mm (4.4 inches) | 70% | very high |
| June Weather | 18°C (65°F) | 122 mm (4.8 inches) | 71% | very high |
| July Weather | 19°C (66°F) | 97 mm (3.8 inches) | 67% | very high |
| August Weather | 19°C (67°F) | 99 mm (3.9 inches) | 64% | very high |
| September Weather | 14°C (58°F) | 75 mm (2.9 inches) | 67% | high |
| October Weather | 9°C (49°F) | 77 mm (3.0 inches) | 83% | moderate |
| November Weather | 4°C (40°F) | 67 mm (2.6 inches) | 90% | low |
| December Weather | 0°C (32°F) | 75 mm (3.0 inches) | 91% | low |