Honolulu Marathon

The Honolulu Marathon delivers a 26.2 mile tour of the south shore of Oahu with serious island atmosphere. Starting before dawn near Ala Moana Beach Park, runners pass through downtown Honolulu and Waikiki, climb around Diamond Head and head out toward Hawaii Kai before returning to finish in Kapiolani Park. The race draws a huge international field, especially from Japan, and is known for its relaxed but festive vibe. With no cutoff time and a certified course, it works both as a destination marathon and as a Boston qualifier for runners who can manage the heat.

The course starts on Ala Moana Boulevard beside Ala Moana Beach Park, briefly heads toward downtown and Honolulu Harbor, then turns back through Chinatown and past civic landmarks such as Iolani Palace. Runners then move through Waikiki, loop around Kapiolani Park and climb the rolling hills around Diamond Head with sweeping views of the Pacific. From there the route follows Kalanianaole Highway on a long out and back through Hawaii Kai before returning along the same coastal highway to finish on Kalakaua Avenue in Kapiolani Park.

December in Honolulu is warm and humid by marathon standards, with typical race morning temperatures in the mid 60s Fahrenheit and daytime highs near 80. The early 5 a.m. start and trade wind breeze help early in the race, but sun exposure and humidity steadily build over the back half. Hydration, electrolytes, light clothing and conservative early pacing are essential if you want to enjoy the views and still finish feeling strong.