TRAFFIC ADVISORY: 2025 Kaua‘i Marathon and Half Marathon

Published on August 27, 2025

KŌLOA – The 2025 Kaua‘i Marathon and Half Marathon will take place on Sunday, August 31, 2025, starting at 6:00 a.m. The racecourse will impact Kōloa, Po‘ipū, Lāwa‘i, and Kalāheo, with a combination of lane closures, full road closures, and partial restrictions between 5:00 a.m. and 2:00 p.m.

To ensure the safety of runners, spectators, and motorists, road closures will be managed throughout the course. Drivers are urged to plan ahead, expect delays, and use extreme caution when traveling in the area.

Road Closures:
• Po‘ipū Road (Closed from the Po‘ipū Roundabout to the Ala Kinoiki from 5:15 a.m. to 6:30 a.m.)
• Ho‘onani Road (Closed from Lāwa‘i Road to Kapili Road from 4:15 a.m. to 1:00 p.m.)
• Kōloa Road (Inbound and outbound lanes from Kaumuali‘i Highway closed from 6:30 a.m. to 12:30 p.m.)
• Lauoho, Waha, and Pu‘u Roads (Closed to thru traffic from 7:00 a.m. to 12:30 p.m.)
• ʻŌma‘o Road (Closed from Kaumuali‘i Highway to Kōloa Road from 6:00 a.m. to 9:30 a.m.)
• Ala Kinoiki (Closed from 5:45 a.m. to 7:45 a.m.)
• Maluhia Road (Closed between the Ala Kinoiki and Kaumuali‘i Highway from 6:00 a.m. to 8:00 a.m.)

Partial Closures:
• Kaumuali‘i Highway from Maluhia to ʻŌma‘o Road (Alternating one-way traffic from 6:00 a.m. to approximately 9:00 a.m.)
• Papalina Road (Alternating one-way traffic from Waha to Pu‘u Road from 7:00 a.m. to 11:30 a.m.)
• Ala Kalanikaumaka (Closed from 6:30 a.m. to 1:00 p.m., open to outbound traffic from Po‘ipū Roundabout to Kōloa Road)

Officers will be posted at key intersections to manage traffic and ensure safety. Motorists should allow extra time to reach their destinations as traffic delays are expected.

For race maps and more details, visit www.thekauaimarathon.com.

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