Pack or skip
Sun hat for Busan in January
Verdict
Skip it
Highs around 45°F — too cool for prolonged sun exposure.
Why
Busan in January averages highs of 45°F, lows of 33°F, 6 rainy days.
That climate means a sun hat isn't pulling its weight. Highs around 45°F — too cool for prolonged sun exposure.