January Weather in Haan, Germany

Last updated: August 23, 2025

In January, the average temperature in Haan, Germany hovers around 3°C (38°F). Expect chilly conditions with minimums dropping to -8°C (17°F) and highs reaching up to 14°C (57°F). This month also brings significant moisture, with 92 mm (3.6 in) of precipitation spread across approximately 15 days. Keep in mind the high average humidity of 91%, which can make the cold feel even more penetrating.

January Temperature in Haan

In January in Haan, the average temperature is 3°C (38°F). The maximum can reach 14°C (57°F), and the minimum can be as low as -8°C (17°F). Pack warm clothing and be prepared for chilly days, but enjoy the crisp air and winter scenery while traveling!

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

The chart illustrates January temperature patterns in Haan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Haan, January typically has an average temperature of 3°C (38°F), with highs reaching up to 14°C (57°F) and lows dropping to around -8°C (17°F).

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

January Precipitation in Haan

In Haan in January, the precipitation amount is 92 mm (3.6 in) distributed over 15 days.

January Precipitation Trends in Haan

The chart displays monthly precipitation patterns in Haan, 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 Haan, January typically receives around 92 mm (3.6 inches) of precipitation spread over approximately 15 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 Haan

In Haan in January 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.

January Average Humidity in Haan

This chart illustrates the average monthly humidity levels in Haan, 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 Haan 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 Haan

In Haan 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 Haan.

Maximum UV Index Levels in Haan for January

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

Data source: Haan 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 Haan Compares to Other Months

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

This table compares monthly weather conditions in Haan, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	3°C (38°F)	92 mm (3.6 inches)	91%	low
February Weather	4°C (40°F)	96 mm (3.8 inches)	90%	low
March Weather	7°C (44°F)	95 mm (3.8 inches)	87%	moderate
April Weather	10°C (50°F)	44 mm (1.7 inches)	84%	moderate
May Weather	14°C (57°F)	79 mm (3.1 inches)	77%	high
June Weather	19°C (66°F)	75 mm (3.0 inches)	74%	very high
July Weather	19°C (66°F)	110 mm (4.4 inches)	72%	very high
August Weather	19°C (67°F)	84 mm (3.3 inches)	71%	high
September Weather	15°C (59°F)	75 mm (2.9 inches)	81%	moderate
October Weather	12°C (53°F)	115 mm (4.5 inches)	88%	moderate
November Weather	7°C (44°F)	70 mm (2.8 inches)	91%	low
December Weather	5°C (41°F)	131 mm (5.2 inches)	92%	low