Pack or skip
Sunscreen for Osaka in July
Verdict
Pack it
Sun still finds you at 87°F — UV doesn't care about temperature.
Why
Osaka in July averages highs of 87°F, lows of 74°F, 12 rainy days.
That climate means sunscreen earns its space in the bag. Sun still finds you at 87°F — UV doesn't care about temperature.