Pack or skip
Sunscreen for Las Vegas in September
Verdict
Pack it
Sun still finds you at 95°F — UV doesn't care about temperature.
Why
Las Vegas in September averages highs of 95°F, lows of 71°F, 2 rainy days.
That climate means sunscreen earns its space in the bag. Sun still finds you at 95°F — UV doesn't care about temperature.