Last updated: August 22, 2025
In Sankt Blasen, Austria, the average temperature in December hovers around -3°C (28°F), with the potential to dip as low as -18°C (-1°F) and rise to a maximum of 7°C (45°F). Expect around 85 mm (3.3 in) of precipitation spread over 13 days, contributing to a notably high average humidity of 89%. Stay prepared for chilly, damp conditions!
In December in Sankt Blasen, the average temperature is -3°C (28°F). Maximums can reach 7°C (45°F) while minimums can be as low as -18°C (-1°F). Be prepared for cold weather and pack warm clothing if you plan on traveling during this time.
In Sankt Blasen in December, the precipitation amount is 85 mm (3.3 in) spread over 13 days.
In Sankt Blasen in December humidity is 89%. With an average temperature of -3°C (28°F), this humidity feels like a chilling, bone-drenching experience that makes traveling difficult, as every breath brings a harsh reminder of the damp cold that wraps around you like a heavy cloak.
In Sankt Blasen 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 Sankt Blasen, you can visit Hourly UV Index in Sankt Blasen.
UV Risk Categories
Weather in Sankt Blasen varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Sankt Blasen, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -4°C (25°F) | 42 mm (1.7 inches) | 91% | low |
| February Weather | -1°C (30°F) | 50 mm (2.0 inches) | 87% | moderate |
| March Weather | 2°C (36°F) | 54 mm (2.1 inches) | 82% | high |
| April Weather | 6°C (43°F) | 64 mm (2.5 inches) | 79% | high |
| May Weather | 10°C (50°F) | 133 mm (5.3 inches) | 74% | very high |
| June Weather | 15°C (60°F) | 111 mm (4.4 inches) | 75% | very high |
| July Weather | 16°C (61°F) | 131 mm (5.1 inches) | 74% | very high |
| August Weather | 16°C (61°F) | 148 mm (5.8 inches) | 68% | very high |
| September Weather | 12°C (53°F) | 117 mm (4.6 inches) | 74% | high |
| October Weather | 7°C (45°F) | 75 mm (3.0 inches) | 88% | moderate |
| November Weather | 2°C (36°F) | 92 mm (3.6 inches) | 90% | moderate |
| December Weather | -3°C (28°F) | 85 mm (3.3 inches) | 89% | low |