August Weather in Houston, United States

Last updated: June 24, 2025

In August, the average temperature in Houston, United States is a pleasant 24°C (76°F). Expect a range with minimums dipping to 13°C (56°F) and highs reaching up to 35°C (96°F). During this time, the area receives around 97 mm (3.8 in) of precipitation over 11 days, resulting in an average humidity level of 69%.

August Temperature in Houston

In August in Houston, the average temperature is 24°C (76°F). Maximums can reach 35°C (96°F), and minimums can drop as low as 13°C (56°F). This makes it an ideal time for travelers to enjoy a variety of outdoor activities and pleasant weather in Houston.

August Weather in Houston: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Houston, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Houston, August typically has an average temperature of 24°C (76°F), with highs reaching up to 35°C (96°F) and lows dropping to around 13°C (56°F).

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

August Precipitation in Houston

In Houston in August, the total precipitation amount is 97 mm (3.8 in) over the course of 11 days.

August Precipitation Trends in Houston

The chart displays monthly precipitation patterns in Houston, with values for each month alongside August’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August’s conditions compare to those of other months. In Houston, August typically receives around 97 mm (3.8 inches) of precipitation spread over approximately 11 days.

Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

August Humidity in Houston

In Houston in August humidity is 69%. With an average temperature of 24°C (76°F), this humidity feels like a warm, sticky embrace that can make outdoor activities feel a bit more exhausting, so travelers should stay hydrated and take frequent breaks in the shade.

August Average Humidity in Houston

This chart illustrates the average monthly humidity levels in Houston, with August’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In August, average humidity in Houston is approximately 69%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Houston

In Houston in August, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Houston.

Maximum UV Index Levels in Houston for August

The chart shows the monthly maximum UV Index (UVI) for Houston in August, 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 August, the maximum UV index in Houston typically reaches 10, which falls under the very high exposure category.

Data source: Houston August 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 August Weather in Houston Compares to Other Months

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

This table compares monthly weather conditions in Houston, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	1°C (35°F)	73 mm (2.9 inches)	83%	moderate
February Weather	3°C (38°F)	100 mm (3.9 inches)	81%	high
March Weather	9°C (48°F)	138 mm (5.4 inches)	80%	high
April Weather	13°C (55°F)	170 mm (6.7 inches)	80%	very high
May Weather	18°C (65°F)	188 mm (7.4 inches)	83%	extreme
June Weather	23°C (74°F)	67 mm (2.7 inches)	83%	extreme
July Weather	26°C (78°F)	75 mm (2.9 inches)	76%	extreme
August Weather	24°C (76°F)	97 mm (3.8 inches)	69%	very high
September Weather	22°C (72°F)	42 mm (1.6 inches)	68%	very high
October Weather	15°C (58°F)	117 mm (4.6 inches)	72%	high
November Weather	7°C (45°F)	68 mm (2.7 inches)	83%	moderate
December Weather	5°C (41°F)	63 mm (2.5 inches)	86%	moderate