January Weather in Gronau, Germany

Last updated: August 23, 2025

In January, the average temperature in Gronau, Germany hovers around 4°C (39°F). Expect chilly nights with minimums dropping to -8°C (17°F), while the day can warm up to a pleasant 14°C (58°F). With an average humidity of 88% and 67 mm (2.6 in) of precipitation spread over 13 days, Gronau can be quite damp, so don't forget your umbrella!

January Temperature in Gronau

In January in Gronau, the average temperature is 4°C (39°F), with maximums reaching 14°C (58°F) and minimums dipping as low as -8°C (17°F). Be prepared for chilly conditions if you plan to travel during this time.

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

The chart illustrates January temperature patterns in Gronau, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Gronau, 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 (17°F).

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

January Precipitation in Gronau

In Gronau in January, the precipitation amount is 67 mm (2.6 in) spread over 13 days.

January Precipitation Trends in Gronau

The chart displays monthly precipitation patterns in Gronau, 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 Gronau, January typically receives around 67 mm (2.6 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 Gronau

In Gronau in January, humidity is 88%. With an average temperature of 4°C (39°F), this humidity feels like a damp chill that seeps into your bones, making travel uncomfortable and necessitating extra layers to stay warm.

January Average Humidity in Gronau

This chart illustrates the average monthly humidity levels in Gronau, 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 Gronau is approximately 88%, 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 Gronau

In Gronau 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 Gronau.

Maximum UV Index Levels in Gronau for January

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

Data source: Gronau 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 Gronau Compares to Other Months

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

This table compares monthly weather conditions in Gronau, 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)	67 mm (2.6 inches)	88%	low
February Weather	4°C (40°F)	75 mm (2.9 inches)	88%	low
March Weather	6°C (44°F)	76 mm (3.0 inches)	86%	moderate
April Weather	10°C (50°F)	36 mm (1.4 inches)	84%	moderate
May Weather	14°C (57°F)	65 mm (2.5 inches)	80%	high
June Weather	19°C (66°F)	65 mm (2.6 inches)	75%	very high
July Weather	19°C (66°F)	74 mm (2.9 inches)	75%	very high
August Weather	19°C (66°F)	76 mm (3.0 inches)	75%	high
September Weather	15°C (59°F)	63 mm (2.5 inches)	83%	moderate
October Weather	12°C (54°F)	86 mm (3.4 inches)	86%	moderate
November Weather	7°C (45°F)	54 mm (2.1 inches)	87%	low
December Weather	5°C (41°F)	91 mm (3.6 inches)	86%	low