January Weather in South Houston, United States

Last updated: June 24, 2025

In South Houston, United States, the average temperature in January hovers around 13°C (55°F). Expect a chill with minimums dipping to -7°C (19°F), while the maximum can climb to a warm 28°C (83°F). Be prepared for some rain, as the area receives an average precipitation of 91 mm (3.6 in) over 9 days, coupled with a humidity level of 78%.

January Temperature in South Houston

In January in South Houston, the average temperature is 13°C (55°F), with maximums reaching 28°C (83°F) and minimums dropping as low as -7°C (19°F). Be prepared for a wide range of temperatures if you're planning to travel during this time.

January Weather in South Houston: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in South Houston, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In South Houston, January typically has an average temperature of 13°C (55°F), with highs reaching up to 28°C (83°F) and lows dropping to around -7°C (19°F).

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

January Precipitation in South Houston

In South Houston in January, the precipitation amount is 91 mm (3.6 in) spread over 9 days.

January Precipitation Trends in South Houston

The chart displays monthly precipitation patterns in South Houston, 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 South Houston, January typically receives around 91 mm (3.6 inches) of precipitation spread over approximately 9 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 South Houston

In South Houston in January, humidity is 78%. With an average temperature of 13°C (55°F), this humidity feels like a damp blanket enveloping you, making outdoor activities feel steamy and your clothes cling uncomfortably, often leaving you longing for a cool breeze or an air-conditioned escape while exploring.

January Average Humidity in South Houston

This chart illustrates the average monthly humidity levels in South Houston, 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 South Houston 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 South Houston

In South Houston 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 South Houston.

Maximum UV Index Levels in South Houston for January

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

Data source: South Houston 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 South Houston Compares to Other Months

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

This table compares monthly weather conditions in South Houston, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	13°C (55°F)	91 mm (3.6 inches)	78%	moderate
February Weather	14°C (58°F)	95 mm (3.8 inches)	81%	very high
March Weather	19°C (66°F)	86 mm (3.4 inches)	76%	very high
April Weather	21°C (70°F)	94 mm (3.7 inches)	79%	extreme
May Weather	25°C (77°F)	176 mm (6.9 inches)	79%	extreme
June Weather	28°C (82°F)	171 mm (6.7 inches)	74%	extreme
July Weather	28°C (83°F)	146 mm (5.8 inches)	71%	extreme
August Weather	29°C (84°F)	201 mm (7.9 inches)	68%	extreme
September Weather	27°C (80°F)	202 mm (8.0 inches)	73%	very high
October Weather	22°C (73°F)	104 mm (4.1 inches)	75%	very high
November Weather	17°C (63°F)	82 mm (3.2 inches)	78%	high
December Weather	14°C (58°F)	111 mm (4.4 inches)	84%	moderate