Weather in Houston in August
August in Houston is warm with average temperatures around 29.6°C (85.3°F). Expect significant rainfall with 125mm across approximately 14 days.
Data Note: Temperature values are 2001–2020 satellite/reanalysis grid averages from NASA POWER and may differ from airport station normals by a few degrees.
Temperature
High
35.0°C
95.0°F
Low
24.1°C
75.4°F
Precipitation
125 mm
4.9 inches
~14 rainy days
Conditions
Humidity
72%
Comparison to Adjacent Months
August is 2.8°C warmer than September.