Typical Weather in Houston, TX in September
86° F Avg High
71° F Avg Low
5 Rainy Days
☀️ Temperature Summary
September is a popular time to visit, with an inviting climate featuring warm temperatures. Highs in September are typically around 86°F, which is warmer than usual in Houston. You can expect overnight lows near 71°F most days. Temperatures will usually fall as the month goes on, with daily high temperatures ranging between 90°F and 82°F.
Be ready to seek shade during the day, as mid-day temperatures can be dangerous if you're caught without a way to cool off. If you want to avoid the September heat, you may consider visiting in October instead, when highs are often closer to 79°.
High Temps Throughout the Year
🎒 What to Pack
Pick up a few of these items to keep your trip fun and comfortable.
☔ Rain Summary
In September you can expect close to a 18% chance of rain for any given day. It rains more than usual in September, with total rainfall for the month typically near 4 inches.
Rainfall Throughout the Year
Planning a trip to Houston? Try our free trip weather planner