Weather in Houston in August 2025
- August is usually the hottest month of the year in Houston;
Average weather
Average temperature in Houston in August
The temperature in August is +39°C on average, with a range between a maximum of +42°C during the day and a minimum of +25°C at night.
The average maximum temperature goes down 18% by the end of the month, compared with the beginning of the month, from +39°C to +36°C.
Is Houston warm or cold in August?
Houston is typically hot in August.
Maximum temperatures go up compared to the previous month from +34°C to +34°C. The minimum temperature also goes up from +24°C to +24°C.
Make sure that you pack your summer linen and swimming costumes; it’s probably going to be hot.
August is the hottest month in Houston, here is the comparison with other months:
Climate in Houston in August
| July | August | September | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +34°C | +34°C | +32°C | ||||
| Min. temperature | ||||||
| +18°C | +16°C | +10°C | ||||
| Max. temperature | ||||||
| +40°C | +42°C | +42°C | ||||
| Rainfall | ||||||
| 109 mm | 102 mm | 116 mm | ||||
| Wind | ||||||
| 2 m/s | 2 m/s | 2 m/s | ||||
| Humidity | ||||||
| 74% | 73% | 73% | ||||
| Air pressure | ||||||
| 1015 HPa | 1014 HPa | 1014 HPa | ||||
| Sunny days | ||||||
| 4 | 4 | 7 | ||||
| Cloudy days | ||||||
| 5 | 5 | 5 | ||||
| Rainy days | ||||||
| 12 | 13 | 12 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
August weather is still as ok as in July. The temperature levels stay the same in the area of +34°C for average maximum temperature during the day. As August arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 109 mm to 102 mm. It feels drier, as humidity decreases from 74% to 73%. The average wind speed doesn’t change much during August, staying around 2 m/s. The amount of sunny days stay about the same, averaging 4 sunny days during the month.
But maybe it is worth considering traveling in September as the weather gets better.
Wind
The average wind speed is 4 m/s getting up to 7 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Houston is gradually increasing during August, going from 3 m/s to 3 m/s over the course of the month.
Rain
How was the weather last August in Houston?
Climate Change over Years
The climate in Houston in August has not changed much over the last 43 years.
The average temperature was the lowest in 1979 (+24°C) and the highest in 2012 (+28°C). The driest year was 2011 with only 709 mm of rainfall, and the wettest year was 2021 with 2058 mm.
FAQ
Is August a good time to visit Houston?
Can you sunbathe in Houston in August?
Is Houston rainy in August?
Is it sunny in Houston in August?
Other cities in USA
Monthly weather in Houston
Source of the data
For this page, we’ve looked at the typical weather in Houston, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.