Pack or skip
Packable down jacket for Long Beach in September
Verdict
Skip it
Lows around 66°F — you'll never reach for it.
Why
Long Beach in September averages highs of 81°F, lows of 66°F, 1 rainy days.
That climate means a packable down jacket isn't pulling its weight. Lows around 66°F — you'll never reach for it.