Catalina Island Marathon
Race Day Weather
Mild start, steady climb ahead
Runners will face a mild start at 55°F, with temperatures remaining steady at 56°F during the climb to Mile 22. A light tailwind will assist from Miles 1-4 and 11-16, but runners should prepare for crosswinds in exposed stretches throughout the course. With humidity at 81%, maintaining hydration will be crucial, especially during the significant climbs between Miles 13 and 19.
This course climbs 1,526 ft to its high point and back, so we look at it at 2 points, not just the start line. In a typical year, at 9:00/mi, you start at 55° and finish around 10:55 AM in 55°.
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Race Info
The Catalina Island Marathon is a point-to-point trail marathon run each March from Two Harbors to Avalon on Santa Catalina Island, California. It serves as California's State Off-Road Marathon Championship and is billed as the oldest trail marathon in the state, typically selling out; the 2026 race drew more than 1,400 participants across its marathon, 10K and 5K distances. The course climbs and descends on dirt roads and trails through Catalina Island Conservancy land, and race-weekend access depends on the Catalina Express ferry schedule to the island. The 2027 edition, the marathon's 49th running, is scheduled for March 13.
