Pack or skip
Beanie for Bali in September
Verdict
Skip it
Lows near 75°F — no scenario where you'll want one.
Why
Bali in September averages highs of 87°F, lows of 75°F, 9 rainy days.
That climate means a beanie isn't pulling its weight. Lows near 75°F — no scenario where you'll want one.