Pack or skip
Packable down jacket for Ljubljana in March
Verdict
Pack it
Lows around 36°F — the packable puffer covers 90% of layering needs.
Why
Ljubljana in March averages highs of 52°F, lows of 36°F, 9 rainy days.
That climate means a packable down jacket earns its space in the bag. Lows around 36°F — the packable puffer covers 90% of layering needs.