Pack or skip
Packable down jacket for Busan in August
Verdict
Skip it
Lows around 73°F — you'll never reach for it.
Why
Busan in August averages highs of 84°F, lows of 73°F, 13 rainy days.
That climate means a packable down jacket isn't pulling its weight. Lows around 73°F — you'll never reach for it.