Pack or skip
Sunscreen for Busan in August
Verdict
Pack it
Sun still finds you at 84°F — UV doesn't care about temperature.
Why
Busan in August averages highs of 84°F, lows of 73°F, 13 rainy days.
That climate means sunscreen earns its space in the bag. Sun still finds you at 84°F — UV doesn't care about temperature.