Last updated: August 22, 2025
In Unternberg, Austria, the average temperature in December hovers around -4°C (25°F). Expect chilly days, with minimums plunging to -20°C (-4°F) and maximums reaching up to 5°C (42°F). Precipitation is prevalent, amounting to 109 mm (4.3 in) spread over 13 days, and the air stays quite damp with an average humidity of 89%.
In December in Unternberg, the average temperature is -4°C (25°F). The maximum can reach 5°C (42°F), while the minimum can drop as low as -20°C (-4°F). Travelers should be prepared for chilly weather and pack warm clothing if visiting this destination during this time.
In Unternberg in December, the precipitation amount is 109 mm (4.3 in), which occurs during 13 days.
In Unternberg in December humidity is 89%. With an average temperature of -4°C (25°F), this humidity feels like an intense chill that seeps into your bones, making traveling uncomfortable as you navigate through the damp, cold air.
In Unternberg 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 Unternberg, you can visit Hourly UV Index in Unternberg.
UV Risk Categories
Weather in Unternberg varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Unternberg, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -6°C (22°F) | 55 mm (2.2 inches) | 91% | low |
| February Weather | -3°C (27°F) | 62 mm (2.4 inches) | 87% | moderate |
| March Weather | 0°C (32°F) | 68 mm (2.7 inches) | 82% | high |
| April Weather | 4°C (40°F) | 75 mm (2.9 inches) | 79% | very high |
| May Weather | 8°C (47°F) | 140 mm (5.5 inches) | 74% | very high |
| June Weather | 14°C (57°F) | 119 mm (4.7 inches) | 75% | very high |
| July Weather | 14°C (58°F) | 136 mm (5.4 inches) | 74% | very high |
| August Weather | 14°C (58°F) | 173 mm (6.8 inches) | 68% | very high |
| September Weather | 10°C (51°F) | 120 mm (4.7 inches) | 74% | high |
| October Weather | 6°C (43°F) | 90 mm (3.6 inches) | 88% | moderate |
| November Weather | 1°C (34°F) | 114 mm (4.5 inches) | 90% | moderate |
| December Weather | -4°C (25°F) | 109 mm (4.3 inches) | 89% | low |