Pack or skip
Sunscreen for Tucson in March
Verdict
Pack it
Sun still finds you at 73°F — UV doesn't care about temperature.
Why
Tucson in March averages highs of 73°F, lows of 46°F, 5 rainy days.
That climate means sunscreen earns its space in the bag. Sun still finds you at 73°F — UV doesn't care about temperature.