Typical Weather in Austin, TX in September
91° F Avg High
66° F Avg Low
5 Rainy Days
☀️ Temperature Summary
September is a popular time of year to visit, with an inviting climate characterized by warm temperatures. September is one of the warmer months of the year for Austin, with highs averaging around 91°F. You can expect overnight lows near 66°F most days. Temperatures will usually fall as the month goes on, with daily high temperatures ranging between 95°F and 86°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 81°.
High Temps Throughout the Year
☔ Rain Summary
In September you can expect close to a 16% chance of rain for any given day. It rains more than usual in September, with total rainfall for the month typically near 3 inches.
Rainfall Throughout the Year
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