Pack or skip
Sunscreen for Hilo in January
Verdict
Pack it
Sun still finds you at 79°F — UV doesn't care about temperature.
Why
Hilo in January averages highs of 79°F, lows of 61°F, 20 rainy days.
That climate means sunscreen earns its space in the bag. Sun still finds you at 79°F — UV doesn't care about temperature.