January Weather in Heiden, Germany

Last updated: August 23, 2025

In January, the average temperature in Heiden, Germany hovers around 4°C (39°F), with minimums dipping to a chilly -8°C (18°F) and maximums peaking at 14°C (58°F). Be prepared for potential rain, as 73 mm (2.9 in) of precipitation may fall over the course of 13 days. With humidity levels averaging 91%, it's a month where cozy layers and an umbrella are essential!

January Temperature in Heiden

In January in Heiden, the average temperature is 4°C (39°F), with maximums reaching 14°C (58°F) and minimums dropping as low as -8°C (18°F). Travelers should be prepared for chilly conditions and pack accordingly.

January Weather in Heiden: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Heiden, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Heiden, January typically has an average temperature of 4°C (39°F), with highs reaching up to 14°C (58°F) and lows dropping to around -8°C (18°F).

Data source: Temperature data for Heiden generated using information from the Copernicus Climate Change Service.

January Precipitation in Heiden

In Heiden in January, the precipitation amount is 73 mm (2.9 in) over the course of 13 days.

January Precipitation Trends in Heiden

The chart displays monthly precipitation patterns in Heiden, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Heiden, January typically receives around 73 mm (2.9 inches) of precipitation spread over approximately 13 days.

Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

January Humidity in Heiden

In Heiden in January, humidity is 91%. With an average temperature of 4°C (39°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities less enjoyable and forcing travelers to bundle up tightly against the cold, sticky air.

January Average Humidity in Heiden

This chart illustrates the average monthly humidity levels in Heiden, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Heiden is approximately 91%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Heiden

In Heiden in January, 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 Heiden.

Maximum UV Index Levels in Heiden for January

The chart shows the monthly maximum UV Index (UVI) for Heiden in January, 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 January, the maximum UV index in Heiden typically reaches 1, which falls under the low exposure category.

Data source: Heiden January 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 January Weather in Heiden Compares to Other Months

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

This table compares monthly weather conditions in Heiden, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	4°C (39°F)	73 mm (2.9 inches)	91%	low
February Weather	5°C (41°F)	81 mm (3.2 inches)	90%	low
March Weather	7°C (45°F)	76 mm (3.0 inches)	87%	moderate
April Weather	10°C (50°F)	35 mm (1.4 inches)	84%	moderate
May Weather	14°C (57°F)	60 mm (2.4 inches)	77%	high
June Weather	19°C (66°F)	59 mm (2.3 inches)	74%	very high
July Weather	19°C (67°F)	83 mm (3.3 inches)	72%	very high
August Weather	19°C (67°F)	71 mm (2.8 inches)	71%	high
September Weather	15°C (60°F)	62 mm (2.4 inches)	81%	moderate
October Weather	12°C (54°F)	92 mm (3.6 inches)	88%	moderate
November Weather	7°C (45°F)	55 mm (2.1 inches)	91%	low
December Weather	5°C (41°F)	99 mm (3.9 inches)	92%	low