Pack or skip
Packable down jacket for Lisbon in September
Verdict
Optional
Handy for evening chills; skip if you're tight on space.
Why
Lisbon in September averages highs of 79°F, lows of 63°F, 4 rainy days.
That climate makes a packable down jacket a judgment call. Handy for evening chills; skip if you're tight on space.