Pack or skip
Packable down jacket for Porto in January
Verdict
Pack it
Lows around 45°F — the packable puffer covers 90% of layering needs.
Why
Porto in January averages highs of 57°F, lows of 45°F, 13 rainy days.
That climate means a packable down jacket earns its space in the bag. Lows around 45°F — the packable puffer covers 90% of layering needs.