Big Island International Marathon
Race Day Weather
Warm start, adjust pace wisely
Runners will face a temperature rising from 74°F at the start to a peak of 83°F. With a light headwind up to 9 mph and humidity averaging 79%, hydration will be crucial. Due to the heat, participants should consider pacing conservatively and remain vigilant for light rain throughout.
Pace Calculator
Get forecast alerts for Big Island International Marathon
We'll text or email you when the forecast shifts — so you can adjust gear, pacing, and strategy. Max one per day.
Race Info
This run goes along the old coast of the Big Island. The marathon is 2 out and backs starting at the Hilo Hawaiian and finishing back at the same hotel. Packet pickup and the Expo are the day before the race at the Hilo Hawaiian Hotel. At the checkout you can purchase Event Insurance for live events Source