Pack or skip
Beanie for Cartagena in September
Verdict
Skip it
Lows near 77°F — no scenario where you'll want one.
Why
Cartagena in September averages highs of 86°F, lows of 77°F, 6 rainy days.
That climate means a beanie isn't pulling its weight. Lows near 77°F — no scenario where you'll want one.