Pack or skip
Winter coat for Cartagena in September
Verdict
Skip it
Lows stay near 77°F — a coat is overkill.
Why
Cartagena in September averages highs of 86°F, lows of 77°F, 6 rainy days.
That climate means a winter coat isn't pulling its weight. Lows stay near 77°F — a coat is overkill.