Pack or skip
Beanie for Cartagena in December
Verdict
Skip it
Lows near 75°F — no scenario where you'll want one.
Why
Cartagena in December averages highs of 85°F, lows of 75°F, 3 rainy days.
That climate means a beanie isn't pulling its weight. Lows near 75°F — no scenario where you'll want one.