Pack or skip
Sunscreen for Mexico City in July
Verdict
Pack it
Sun still finds you at 74°F — UV doesn't care about temperature.
Why
Mexico City in July averages highs of 74°F, lows of 53°F, 18 rainy days.
That climate means sunscreen earns its space in the bag. Sun still finds you at 74°F — UV doesn't care about temperature.