Last updated: August 23, 2025
In December, the average temperature in Rettenberg, Germany hovers around -2°C (29°F), though it can drop to a frigid -16°C (3°F) at its coldest and occasionally rise to a maximum of 10°C (51°F). Expect significant precipitation, averaging 165 mm (6.5 in) spread over 19 days, and feel the chill with an average humidity of 90%. Be prepared for a wintery environment!
In December in Rettenberg, the average temperature is -2°C (29°F), with maximums reaching 10°C (51°F) and minimums dropping as low as -16°C (3°F). Travelers should be prepared for cold weather conditions and consider warm clothing when visiting during this time.
In Rettenberg in December, the precipitation amount is 165 mm (6.5 in) over the course of 19 days.
In Rettenberg in December, humidity is 90%. With an average temperature of -2°C (29°F), this humidity feels like an icy breath enveloping you, making every step outdoors feel even colder and more biting, while also creating a heavy, wet atmosphere that can dampen your spirits for traveling.
In Rettenberg 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 Rettenberg, you can visit Hourly UV Index in Rettenberg.
UV Risk Categories
Weather in Rettenberg varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Rettenberg, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -3°C (27°F) | 142 mm (5.6 inches) | 93% | low |
| February Weather | 0°C (31°F) | 110 mm (4.3 inches) | 89% | moderate |
| March Weather | 2°C (36°F) | 130 mm (5.1 inches) | 86% | moderate |
| April Weather | 6°C (42°F) | 98 mm (3.9 inches) | 83% | high |
| May Weather | 9°C (49°F) | 199 mm (7.9 inches) | 78% | very high |
| June Weather | 14°C (58°F) | 185 mm (7.3 inches) | 79% | very high |
| July Weather | 15°C (60°F) | 211 mm (8.3 inches) | 82% | very high |
| August Weather | 15°C (60°F) | 211 mm (8.3 inches) | 80% | very high |
| September Weather | 11°C (52°F) | 150 mm (5.9 inches) | 83% | high |
| October Weather | 7°C (45°F) | 133 mm (5.2 inches) | 90% | moderate |
| November Weather | 2°C (36°F) | 86 mm (3.4 inches) | 89% | moderate |
| December Weather | -2°C (29°F) | 165 mm (6.5 inches) | 90% | low |