Pack or skip
Packable down jacket for Lucerne in December
Verdict
Pack it
Lows around 29°F — the packable puffer covers 90% of layering needs.
Why
Lucerne in December averages highs of 38°F, lows of 29°F, 12 rainy days.
That climate means a packable down jacket earns its space in the bag. Lows around 29°F — the packable puffer covers 90% of layering needs.