SoCal River Marathon
Race Day Weather
Cool start, warming finish
Runners will face a cool start at 54°F, gradually warming to 62°F by the finish. With a light headwind in the final miles, pacing adjustments will be crucial, particularly from miles 11 to 26. Humidity is moderate at 58%, so hydration will be essential throughout. A throwaway layer may be beneficial during the pre-race wait as feels-like temperatures drop to 51°F.
The finish is 22 miles from the start, so we look at it at 2 points, not just the start line. In a typical year, at 9:00/mi, you start at 54° and finish around 11:55 AM in 62°.
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Race Info
The SoCal River Marathon starts in Yorba Linda and finishes at Huntington Beach State Park, following the paved Santa Ana River Trail on a net-downhill course that passes near Disneyland and Angel Stadium before reaching the coast. It is a Boston Marathon qualifier and also offers a half marathon, 10K and 5K on the same morning. Source
