January Weather in Weimar, United States

Last updated: June 24, 2025

In Weimar, United States during the month of January, the average temperature hovers around 12°C (54°F). You may experience a wide range of temperatures, with a minimum of -8°C (18°F) and a maximum of 29°C (84°F). Don't forget your umbrella, as the region sees approximately 66 mm (2.6 in) of precipitation over 8 days. With an average humidity level of 78%, be prepared for a damp and chilly atmosphere!

January Temperature in Weimar

In January in Weimar, the average temperature is 12°C (54°F). The maximum can reach 29°C (84°F), and the minimum can be as low as -8°C (18°F). This varied climate makes Weimar an exciting destination for travelers seeking both warmth and the thrill of chilly adventures.

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

The chart illustrates January temperature patterns in Weimar, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Weimar, January typically has an average temperature of 12°C (54°F), with highs reaching up to 29°C (84°F) and lows dropping to around -8°C (18°F).

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

January Precipitation in Weimar

In Weimar in January, the total precipitation amount is 66 mm (2.6 in) over the course of 8 days.

January Precipitation Trends in Weimar

The chart displays monthly precipitation patterns in Weimar, 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 Weimar, January typically receives around 66 mm (2.6 inches) of precipitation spread over approximately 8 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 Weimar

In Weimar in January humidity is 78%. With an average temperature of 12°C (54°F), this humidity feels like a damp chill settling in, making travel a bit uncomfortable as the air clings to your skin, leaving you feeling cooler than the thermometer suggests.

January Average Humidity in Weimar

This chart illustrates the average monthly humidity levels in Weimar, 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 Weimar is approximately 78%, 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 Weimar

In Weimar in January, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Weimar.

Maximum UV Index Levels in Weimar for January

The chart shows the monthly maximum UV Index (UVI) for Weimar 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 Weimar typically reaches 5, which falls under the moderate exposure category.

Data source: Weimar 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 Weimar Compares to Other Months

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

This table compares monthly weather conditions in Weimar, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	12°C (54°F)	66 mm (2.6 inches)	78%	moderate
February Weather	13°C (56°F)	78 mm (3.1 inches)	81%	very high
March Weather	19°C (66°F)	71 mm (2.8 inches)	76%	very high
April Weather	21°C (70°F)	98 mm (3.9 inches)	79%	extreme
May Weather	25°C (78°F)	139 mm (5.5 inches)	79%	extreme
June Weather	28°C (83°F)	120 mm (4.7 inches)	74%	extreme
July Weather	29°C (85°F)	100 mm (3.9 inches)	71%	extreme
August Weather	30°C (86°F)	147 mm (5.8 inches)	68%	extreme
September Weather	27°C (81°F)	121 mm (4.8 inches)	73%	extreme
October Weather	22°C (72°F)	85 mm (3.4 inches)	75%	very high
November Weather	17°C (62°F)	66 mm (2.6 inches)	78%	high
December Weather	14°C (57°F)	84 mm (3.3 inches)	84%	moderate