Pack or skip
Sunscreen for Tucson in August
Verdict
Pack it
Sun still finds you at 96°F — UV doesn't care about temperature.
Why
Tucson in August averages highs of 96°F, lows of 72°F, 10 rainy days.
That climate means sunscreen earns its space in the bag. Sun still finds you at 96°F — UV doesn't care about temperature.