Pack or skip
Sunscreen for Busan in March
Verdict
Pack it
Sun still finds you at 54°F — UV doesn't care about temperature.
Why
Busan in March averages highs of 54°F, lows of 40°F, 7 rainy days.
That climate means sunscreen earns its space in the bag. Sun still finds you at 54°F — UV doesn't care about temperature.