Mount Desert Island Marathon
Race Day Weather
Cool temps, strategic wind shifts
Runners will face steady temperatures from 51°F at the start, rising slightly to 53°F by the finish. Winds will be a factor, with steady headwinds from miles 8-11 and 19-20, necessitating pacing adjustments during these segments. With humidity at 74%, maintaining hydration will be crucial, especially on the rolling terrain. The cooler conditions should allow for a strong overall performance if runners manage their efforts wisely.
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Race Info
The Mount Desert Island Marathon, Half & Relay is North America’s premier destination road race. The award-winning course features miles of pristine terrain passing tranquil lakes, soaring mountains, sleepy Maine villages, and stunning seaside vistas —including Somes Sound, the only fjord on the Eastern Seaboard— all set against the awe-inspiring backdrop of Acadia National Park in peak fall foliage season. The Marathon and Team Relay start in the world-famous Bar Harbor, while the Half-Marathon starts in picturesque village of Northeast Harbor. All three races finish on the quietside of MDI in the hardworking lobster fishing community of Southwest Harbor.