Pack or skip
Sunscreen for Knoxville in July
Verdict
Pack it
Sun still finds you at 89°F — UV doesn't care about temperature.
Why
Knoxville in July averages highs of 89°F, lows of 68°F, 10 rainy days.
That climate means sunscreen earns its space in the bag. Sun still finds you at 89°F — UV doesn't care about temperature.