Pack or skip
Sun hat for Hilo in May
Verdict
Pack it
Midday temps around 81°F — a brim beats reapplying sunscreen every hour.
Why
Hilo in May averages highs of 81°F, lows of 64°F, 14 rainy days.
That climate means a sun hat earns its space in the bag. Midday temps around 81°F — a brim beats reapplying sunscreen every hour.