FallOff season ~92°F highs

Things to do in San Antonio in September

September is off season (quieter, and often cheaper) to visit San Antonio, with average highs around 92°F. Crisp air and changing leaves make parks and viewpoints shine.

Plan a September weekend Where else in September

Best picks for September

What's famous here, weighted toward what shines in September.

1Foliage walks

Amistad National Recreation Area

protected area in Val Verde County, Texas

2Foliage walks

Seminole Canyon State Park and Historic Site

state park in Texas, United States

Tower of the Americas

observation tower in San Antonio, Texas, USA

Holidays in September 2027

Labour Day · Mon, Sep 6

Expect busier roads and pricier stays around these dates. See long weekends.

San Antonio in September: quick answers

Is September a good time to visit San Antonio?

September is off season (quieter, and often cheaper) to visit San Antonio, with average highs around 92°F. Crisp air and changing leaves make parks and viewpoints shine.

What is the weather like in San Antonio in September?

Average daytime highs are around 92°F, compared with 97°F in the warmest month. Check the forecast a week out; our planner favors indoor stops on rainy days.

What are the best things to do in San Antonio in September?

Top picks for September: Amistad National Recreation Area, Seminole Canyon State Park and Historic Site, Tower of the Americas, Six Flags Fiesta Texas, Sea Life Aquarium.