Catalina Island Marathon
Race Day Weather
Cool conditions, manageable winds
Runners will face consistent temperatures around 55°F throughout the race, with a slight increase to 56°F at mile 22. Wind will be a moderate 12 mph from the WNW, creating a tailwind during key climbing segments. With humidity at 81%, hydration strategies should be prioritized, especially during the climbs from miles 13 to 19 and 22 to 23, while maintaining pace on the descents.
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.
