December Weather in Idstein, Germany

Last updated: August 23, 2025

In Idstein, Germany, the average temperature in December hovers around 3°C (38°F). You might experience chilly mornings, with minimum temperatures dipping to -7°C (20°F), while the afternoons can reach a mild 14°C (57°F). Be prepared for some rainy days, as 99 mm (3.9 in) of precipitation is expected over 17 days. With an average humidity of 92%, it’s the perfect time to cozy up with a warm drink!

December Temperature in Idstein

In December in Idstein, the average temperature is 3°C (38°F). The maximum can reach 14°C (57°F), while the minimum can drop as low as -7°C (20°F). Travelers should be prepared for cold weather and dress in layers to stay comfortable during their visit.

December Weather in Idstein: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Idstein, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Idstein, December typically has an average temperature of 3°C (38°F), with highs reaching up to 14°C (57°F) and lows dropping to around -7°C (20°F).
JanFebMarAprMayJunJulAugSepOctNovDec353843495665676759514238
Data source: Temperature data for Idstein generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Idstein

In Idstein in December, the precipitation amount is 99 mm (3.9 in) over a span of 17 days.

December Precipitation Trends in Idstein

The chart displays monthly precipitation patterns in Idstein, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Idstein, December typically receives around 99 mm (3.9 inches) of precipitation spread over approximately 17 days.
JanFebMarAprMayJunJulAugSepOctNovDec645771408188737351585099
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Idstein

In Idstein in December humidity is 92%. With an average temperature of 3°C (38°F), this humidity feels like a wet chill that seeps into your bones, making outdoor activities uncomfortable and travel arrangements challenging.

December Average Humidity in Idstein

This chart illustrates the average monthly humidity levels in Idstein, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Idstein is approximately 92%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec92%90%87%83%76%74%74%75%82%88%91%92%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Idstein

In Idstein 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 Idstein.

Maximum UV Index Levels in Idstein for December

The chart shows the monthly maximum UV Index (UVI) for Idstein in December, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In December, the maximum UV index in Idstein typically reaches 1, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec224578875421
Data source: Idstein December UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How December Weather in Idstein Compares to Other Months

Weather in Idstein varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Idstein, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Idstein, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather2°C (36°F)64 mm (2.5 inches)92%low
February Weather3°C (38°F)57 mm (2.3 inches)90%low
March Weather6°C (43°F)70 mm (2.8 inches)87%moderate
April Weather10°C (49°F)40 mm (1.6 inches)83%moderate
May Weather13°C (56°F)81 mm (3.2 inches)76%high
June Weather18°C (66°F)88 mm (3.5 inches)74%very high
July Weather19°C (67°F)73 mm (2.9 inches)74%very high
August Weather19°C (67°F)73 mm (2.9 inches)75%high
September Weather15°C (59°F)51 mm (2.0 inches)82%moderate
October Weather11°C (51°F)58 mm (2.3 inches)88%moderate
November Weather5°C (42°F)50 mm (2.0 inches)90%low
December Weather3°C (38°F)99 mm (3.9 inches)92%low

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