Pack or skip
Sunscreen for San Antonio in July
Verdict
Pack it
Sun still finds you at 97°F — UV doesn't care about temperature.
Why
San Antonio in July averages highs of 97°F, lows of 77°F, 6 rainy days.
That climate means sunscreen earns its space in the bag. Sun still finds you at 97°F — UV doesn't care about temperature.