Pack or skip
Sun hat for Hilo in September
Verdict
Pack it
Midday temps around 82°F — a brim beats reapplying sunscreen every hour.
Why
Hilo in September averages highs of 82°F, lows of 65°F, 15 rainy days.
That climate means a sun hat earns its space in the bag. Midday temps around 82°F — a brim beats reapplying sunscreen every hour.