Hawaii · Marathon · Half

Kauai Marathon

Kauai Marathon is a marathon and half marathon event held in Koloa, Hawaii. Its next confirmed date is Sunday, September 5, 2027. About 1,000 runners take part across all distances.

Race day
September 5, 2027
Location
Koloa, HI
Field size
~1,000 runners

Race details

Date
Sunday, September 5, 2027
Location
Koloa, Hawaii
Distances
Marathon, Half
Field size
About 1,000 runners
Course
Moderate
Registration
raceentry.com
Official website
thekauaimarathon.com

Registration, course & weather

Registration status
Open
Start time
6:00 AM HST
Course profile — Marathon
Loop course; Road surface; Not a Boston qualifier
Course profile — Half Marathon
Point-to-point course; Road surface
Typical race-day weather
about 75°F at the start, 72% humidity, 6 mph wind (based on the 2025 race day, measured near the city center rather than the exact start line; Open-Meteo, checked October 5, 2026)

About the Kauai Marathon

A scenic but hilly destination race starting in Koloa on Kauai's south shore, with the full and half marathons sharing the first 11 miles before splitting, drawing around 1,000 runners.

Rankings and notes

Rankings and awards
Boston Marathon qualifier; repeatedly cited among the most scenic marathons in the US; 17th edition in 2026
Notes
Island marathon

More marathons in Hawaii

Coming up next, by confirmed date.

More races in Koloa

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Kauai Marathon: common questions

When is the Kauai Marathon?
The next confirmed date is Sunday, September 5, 2027.
Where is the Kauai Marathon held?
In Koloa, Hawaii.
What distances does the Kauai Marathon offer?
Marathon and Half.
How many people run the Kauai Marathon?
About 1,000 runners across all of its distances. That figure is an estimate of the field size, not an entry cap.
How do I register for the Kauai Marathon?
Registration is handled by the organiser at raceentry.com. Entry fees, caps and deadlines are set there.
Is registration open for the Kauai Marathon?
Yes — registration is open. Listed fee for the longest distance, $260 (from thekauaimarathon.com, checked October 5, 2026).
What time does the Kauai Marathon start?
6:00 AM HST.
What is race-day weather usually like at the Kauai Marathon?
about 75°F at the start, 72% humidity, 6 mph wind (based on the 2025 race day, measured near the city center rather than the exact start line; Open-Meteo, checked October 5, 2026).