Pack or skip
Rain jacket for San Antonio in May
Verdict
Pack it
Around 9 rainy days — a shell keeps you moving between subway stops.
Why
San Antonio in May averages highs of 87°F, lows of 67°F, 9 rainy days.
That climate means a rain jacket earns its space in the bag. Around 9 rainy days — a shell keeps you moving between subway stops.