January Weather in Seguin, United States

Last updated: June 24, 2025

In January, the average temperature in Seguin, United States hovers around 12°C (54°F), with a wide range that can dip to a chilly -7°C (20°F) and soar up to a warm 29°C (85°F). Rain is not uncommon, with an average precipitation of 43 mm (1.7 in) spread over 6 days. Adding to the ambiance, the average humidity sits at a comfortable 79%, creating a lush atmosphere throughout the month.

January Temperature in Seguin

In January in Seguin, the average temperature is 12°C (54°F), with maximums reaching up to 29°C (85°F) and minimums dropping as low as -7°C (20°F). It's essential to pack for a wide range of temperatures when traveling during this month.

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

The chart illustrates January temperature patterns in Seguin, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Seguin, January typically has an average temperature of 12°C (54°F), with highs reaching up to 29°C (85°F) and lows dropping to around -7°C (20°F).

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

January Precipitation in Seguin

In Seguin in January, the precipitation amount is 43 mm (1.7 in) over a period of 6 days.

January Precipitation Trends in Seguin

The chart displays monthly precipitation patterns in Seguin, 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 Seguin, January typically receives around 43 mm (1.7 inches) of precipitation spread over approximately 6 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 Seguin

In Seguin in January, humidity is 79%. With an average temperature of 12°C (54°F), this humidity makes traveling feel quite muggy, leading to a sticky discomfort that can sap your energy and make outdoor activities less enjoyable.

January Average Humidity in Seguin

This chart illustrates the average monthly humidity levels in Seguin, 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 Seguin is approximately 79%, 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 Seguin

In Seguin 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 Seguin.

Maximum UV Index Levels in Seguin for January

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

Data source: Seguin 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 Seguin Compares to Other Months

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

This table compares monthly weather conditions in Seguin, 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)	43 mm (1.7 inches)	79%	moderate
February Weather	13°C (56°F)	51 mm (2.0 inches)	79%	very high
March Weather	19°C (66°F)	53 mm (2.1 inches)	74%	very high
April Weather	21°C (71°F)	84 mm (3.3 inches)	76%	extreme
May Weather	26°C (78°F)	116 mm (4.6 inches)	81%	extreme
June Weather	28°C (83°F)	84 mm (3.3 inches)	76%	extreme
July Weather	30°C (86°F)	70 mm (2.8 inches)	66%	extreme
August Weather	30°C (87°F)	82 mm (3.2 inches)	58%	extreme
September Weather	27°C (81°F)	111 mm (4.4 inches)	65%	extreme
October Weather	22°C (72°F)	78 mm (3.1 inches)	74%	very high
November Weather	17°C (62°F)	51 mm (2.0 inches)	81%	high
December Weather	14°C (57°F)	59 mm (2.3 inches)	86%	moderate