Pack or skip
Flip-flops for Hilo in October
Verdict
Optional
Warm enough to wear in the evening or on the beach; not on a city walking day.
Why
Hilo in October averages highs of 81°F, lows of 65°F, 18 rainy days.
That climate makes flip-flops a judgment call. Warm enough to wear in the evening or on the beach; not on a city walking day.