SoCal River Marathon
Race Day Weather
Cool morning, warming finish
Runners will face a cool start at 54°F, gradually warming to 62°F at the finish. Wind will be a headwind from the SSW during key segments, notably miles 3-6 and 8-26. With humidity at 58%, competitors should adjust their pace conservatively as temperatures rise and ensure hydration is prioritized throughout the race. A light layer may be useful during pre-race as the feels-like temperature drops 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
