Pack or skip
Packable down jacket for Seoul in April
Verdict
Pack it
Lows around 46°F — the packable puffer covers 90% of layering needs.
Why
Seoul in April averages highs of 64°F, lows of 46°F, 8 rainy days.
That climate means a packable down jacket earns its space in the bag. Lows around 46°F — the packable puffer covers 90% of layering needs.