Pack or skip
Flip-flops for San Antonio in September
Verdict
Pack it
Highs around 91°F — perfect flip-flop weather.
Why
San Antonio in September averages highs of 91°F, lows of 70°F, 7 rainy days.
That climate means flip-flops earns its space in the bag. Highs around 91°F — perfect flip-flop weather.