Last updated: August 23, 2025
In December, the average temperature in Osterode am Harz, Germany hovers around 3°C (37°F). Expect a chilly minimum of -11°C (13°F) and a milder maximum of 13°C (55°F). Throughout the month, 80 mm (3.1 in) of precipitation is likely spread across 17 days, contributing to an average humidity level of an impressive 92%. Make sure to prepare for wet and cold conditions!
In December in Osterode am Harz, the average temperature is 3°C (37°F), with maximums reaching 13°C (55°F) and minimums dropping as low as -11°C (13°F). Be prepared for chilly weather if you travel during this time!
In Osterode am Harz in December, the total precipitation amount is 80 mm (3.1 in) spread over 17 days.
In Osterode am Harz in December humidity is 92%. With an average temperature of 3°C (37°F), this humidity feels like a heavy blanket that clings to your skin, making every step feel laborious and the cold air seem even more biting, a challenging environment for traveling.
In Osterode am Harz 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 Osterode am Harz.
UV Risk Categories
Weather in Osterode am Harz varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Osterode am Harz, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 1°C (34°F) | 73 mm (2.9 inches) | 91% | low |
| February Weather | 2°C (35°F) | 72 mm (2.8 inches) | 90% | low |
| March Weather | 4°C (40°F) | 73 mm (2.9 inches) | 88% | moderate |
| April Weather | 8°C (47°F) | 44 mm (1.7 inches) | 83% | moderate |
| May Weather | 12°C (54°F) | 71 mm (2.8 inches) | 75% | high |
| June Weather | 17°C (64°F) | 81 mm (3.2 inches) | 79% | very high |
| July Weather | 18°C (64°F) | 86 mm (3.4 inches) | 79% | very high |
| August Weather | 18°C (65°F) | 74 mm (2.9 inches) | 79% | high |
| September Weather | 14°C (57°F) | 58 mm (2.3 inches) | 83% | high |
| October Weather | 10°C (51°F) | 78 mm (3.1 inches) | 87% | moderate |
| November Weather | 5°C (42°F) | 49 mm (1.9 inches) | 90% | low |
| December Weather | 3°C (37°F) | 80 mm (3.1 inches) | 92% | low |