Pack or skip
Packable down jacket for São Paulo in December
Verdict
Skip it
Lows around 65°F — you'll never reach for it.
Why
São Paulo in December averages highs of 80°F, lows of 65°F, 14 rainy days.
That climate means a packable down jacket isn't pulling its weight. Lows around 65°F — you'll never reach for it.