Last updated: August 23, 2025
In December, the average temperature in Oppenau, Germany hovers around 3°C (38°F). Expect chilly conditions, with minimums dipping to -8°C (18°F) and maximums reaching a mild 13°C (56°F). While you enjoy the crisp air, be prepared for 157 mm (6.2 in) of precipitation over 19 days, resulting in a high average humidity of 91%.
In December in Oppenau, the average temperature is 3°C (38°F), with maximums reaching 13°C (56°F) and minimums dropping as low as -8°C (18°F). It's advisable to pack warm clothing if you're traveling during this time.
In Oppenau in December, the total precipitation amount is 157 mm (6.2 in) over the course of 19 days.
In Oppenau in December humidity is 91%. With an average temperature of 3°C (38°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities uncomfortable and necessitating layered clothing to stay warm and dry during your travels.
In Oppenau 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 Oppenau.
UV Risk Categories
Weather in Oppenau varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Oppenau, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 1°C (34°F) | 124 mm (4.9 inches) | 91% | low |
| February Weather | 3°C (38°F) | 103 mm (4.1 inches) | 89% | moderate |
| March Weather | 6°C (42°F) | 120 mm (4.7 inches) | 87% | moderate |
| April Weather | 10°C (49°F) | 58 mm (2.3 inches) | 83% | high |
| May Weather | 13°C (56°F) | 118 mm (4.6 inches) | 79% | very high |
| June Weather | 18°C (65°F) | 107 mm (4.2 inches) | 82% | very high |
| July Weather | 19°C (67°F) | 94 mm (3.7 inches) | 83% | very high |
| August Weather | 19°C (67°F) | 79 mm (3.1 inches) | 84% | very high |
| September Weather | 15°C (59°F) | 65 mm (2.6 inches) | 85% | high |
| October Weather | 11°C (51°F) | 101 mm (4.0 inches) | 88% | moderate |
| November Weather | 5°C (42°F) | 75 mm (3.0 inches) | 89% | low |
| December Weather | 3°C (38°F) | 157 mm (6.2 inches) | 91% | low |