Thumb Coast Half Marathon
Thumb Coast Half Marathon race day weather
Cool start — fast day potential, warming through the race, moderate wind
A cool 41°F at the start line is ideal for fast times — expect to warm up quickly once you're moving. Temperatures rising to 52°F through the course will gradually increase perceived effort in the second half. Moderate winds around 19mph may affect pacing on open sections of the course. High humidity (82%) will make it harder to cool down through sweat — increase fluid intake accordingly.
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About the Thumb Coast Half Marathon
The half marathon is a point-to-point course that starts at Sleeper State Park off M-25 and runs east along the Saginaw Bay shoreline of Lake Huron to Port Austin. The course is fully paved and USATF-certified. It finishes in downtown Port Austin on the Lake Huron Circle Tour, between State and Railroad streets, at the same finish as the marathon and 5K.