Pack or skip
Sunscreen for Cartagena in May
Verdict
Pack it
Sun still finds you at 90°F — UV doesn't care about temperature.
Why
Cartagena in May averages highs of 90°F, lows of 78°F, 7 rainy days.
That climate means sunscreen earns its space in the bag. Sun still finds you at 90°F — UV doesn't care about temperature.