Month-by-month travel weather
Houston September weather
Houston, United States · September
Flexibility can matter more than the forecast
This can be a higher-variability period for heavy rain—keep schedules adaptable.
September averages at a glance
Average low
around 24–26°C
Average high
around 32–34°C
Average precipitation
around 95–180 mm
Rainy days
about 7–12 days
What to wear in September in Houston
Actual feel will change with wind and rain, but use the suggestions below to build a comfortable layered outfit.
- • Breathable clothing
- • Optional rain option
Travel tips for visiting Houston in September
- • Avoid committing every outdoor plan to one fixed time window.
September weather in Houston — FAQ
Q. Is September risky?
A. Outcomes vary year to year, but variability can be higher than winter.
Explore Houston
These pages are connected so you can compare conditions and decide for yourself.