Last updated: August 23, 2025
In Sankt Johann, Germany, the average temperature in December hovers around 3°C (39°F), with lows dipping to a chilly -5°C (22°F) and highs reaching a mild 14°C (57°F). Expect 89 mm (3.5 in) of precipitation over approximately 16 days, contributing to an average humidity of 92%. Prepare for a damp and crisp month ahead!
In December in Sankt Johann, the average temperature is 3°C (39°F), with maximums reaching up to 14°C (57°F) and minimums dropping as low as -5°C (22°F). Be sure to pack warm clothing and prepare for chilly conditions if you're planning to visit during this time.
In Sankt Johann in December, the precipitation amount is 89 mm (3.5 in) over the course of 16 days.
In Sankt Johann in December, humidity is 92%. With an average temperature of 3°C (39°F), this humidity feels like a cold, damp blanket enveloping you, making travel uncomfortable as the chill seeps into your bones and the moisture in the air clings to your skin.
In Sankt Johann 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 Sankt Johann.
UV Risk Categories
Weather in Sankt Johann varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Sankt Johann, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 2°C (36°F) | 60 mm (2.3 inches) | 91% | low |
| February Weather | 3°C (38°F) | 56 mm (2.2 inches) | 90% | moderate |
| March Weather | 6°C (42°F) | 67 mm (2.7 inches) | 87% | moderate |
| April Weather | 9°C (48°F) | 38 mm (1.5 inches) | 84% | moderate |
| May Weather | 13°C (55°F) | 71 mm (2.8 inches) | 77% | very high |
| June Weather | 18°C (64°F) | 77 mm (3.0 inches) | 74% | very high |
| July Weather | 18°C (65°F) | 71 mm (2.8 inches) | 72% | very high |
| August Weather | 18°C (65°F) | 67 mm (2.6 inches) | 71% | high |
| September Weather | 14°C (58°F) | 49 mm (1.9 inches) | 81% | moderate |
| October Weather | 11°C (51°F) | 56 mm (2.2 inches) | 88% | moderate |
| November Weather | 5°C (42°F) | 48 mm (1.9 inches) | 91% | low |
| December Weather | 3°C (39°F) | 89 mm (3.5 inches) | 92% | low |