The climate in Houston during August can be summarized as hot, humid and a little damp.
August is in the summer in Houston and is typically the 2nd warmest month of the year. Daytime maximum temperatures average around a muggy 31°C (87°F), whilst at night 17°C (63°F) is normal.
| Daytime temperature | 30.7°C 87.2°F |
|---|---|
| Nightly temperature | 17.4°C 63.2°F |
| Average temperature | 24°C 75.2°F |
| Daily sunshine | 10 hrs |
| Avg rainfall | 91 mm 3.6 ins |
| Rainy days | 8 days |
| Sea temperature | 23.2°C 73.8°F |
| Humidity | 71% |
| Windspeed | 13kph 8 mph |
On average August is the 5th driest month of the year in Houston with around 91mm 3.6 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 8 days, although this may vary considerably.
On the flip side this corresponds to an average of 10 hours of sunshine per day.
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Houston in August 2025.
Best places to visit in August
| Hottest month: | July | 31.2°C 88.2°F |
|---|---|---|
| Driest month: | January | 53mm 2.1ins |
| Sunniest month: | July | 10.9hrs |
| Coldest month: | January | 4.5°C 40.1°F |
| Wettest month: | May | 122mm 4.8ins |