Pack or skip
Sunscreen for Cartagena in January
Verdict
Pack it
Sun still finds you at 86°F — UV doesn't care about temperature.
Why
Cartagena in January averages highs of 86°F, lows of 75°F, 4 rainy days.
That climate means sunscreen earns its space in the bag. Sun still finds you at 86°F — UV doesn't care about temperature.