The 2026 event has concluded.
Big Island International Marathon
Hilo, HI, USA • March 15, 2026
Race Day Weather
73°
78° high
Light
Light rain likely
Warm and humid, light rain expected
Runners will face temperatures rising from 74°F to 78°F with high humidity at 90%. A light rain is expected throughout, adding to the muggy conditions, while winds from the E are at 8 mph with gusts up to 18 mph. It's advisable to start conservatively and hydrate frequently to manage the heat and moisture.
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Distance: 26.2mi
0:00:00
HH:MM:SS
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
FAQ
When is the 2026 Big Island International Marathon?
The 2026 Big Island International Marathon will be held on Sunday March 15, 2026.
What is the time limit for the Big Island International Marathon?
The time limit for the Big Island International Marathon is 7 hours.
What will the weather be like for the 2026 Big Island International Marathon?
The forecast calls for a high of 78°F and a low of 73°F with a 100% chance of rain. Check our detailed hourly forecast above for the best marathon race plan.
Historical Weather
Based on 8 years of data
Avg Temp
79°F
L:67° H:80°
RunScore
Conditions
Rain Freq
50%
4 of 8 yrs
Wind9mph
Dew65°F
Temperature History
Range of temperatures during race hours for each year.
Detailed History
| Year | Conditions | Low / High | Rain | Dew Point | Score |
|---|---|---|---|---|---|
2025 | | 70°/79° | Light | 69° | |
2024 | | 67°/78° | Light | 65° | |
2023 | | 66°/85° | - | 61° | |
2020 |  | 71°/79° | Light | 67° | |
2019 |  | 60°/78° | - | 56° | |
2018 | | 69°/81° | - | 66° | |
2017 | | 66°/80° | - | 61° | |
2016 | | 67°/78° | Light | 64° |