Pack or skip
Rain jacket for San Antonio in September
Verdict
Pack it
Around 7 rainy days — a shell keeps you moving between subway stops.
Why
San Antonio in September averages highs of 91°F, lows of 70°F, 7 rainy days.
That climate means a rain jacket earns its space in the bag. Around 7 rainy days — a shell keeps you moving between subway stops.