Places › Austin, TX › September

Austin in September

A shoulder month — score 63 of 100

Typical September days in Austin reach about 91°F with nights near 70°F.

What to pack for Austin in September

• Layers — afternoons run about 21° warmer than mornings.
• A compact rain layer — about 7 days see rain in a typical September.
• Breathable clothes, a hat, and sunscreen — typical afternoons reach about 91°F.
• Pace the midday hours — about 20 days in a typical September reach 90°F.

Every packing line is triggered by a number on this page — the rules are on How we pick.

September vs. the alternatives

The whole year in Austin

Averages are the 1991–2020 climate normals (NOAA National Centers for Environmental Information) for the station named on each page. Rain days = days with at least 0.01 in of precipitation. Daylight is computed for the middle of the month.