Pack or skip
Sunglasses for Busan in September
Verdict
Pack it
Highs around 77°F — plenty of daylight glare.
Why
Busan in September averages highs of 77°F, lows of 66°F, 10 rainy days.
That climate means sunglasses earns its space in the bag. Highs around 77°F — plenty of daylight glare.