Chelmsford Marathon
Race Day Weather
Comfortable temps, moderate wind
Mild 54°F temps at gun time mean comfortable early miles without overheating risk. Moderate winds around 13mph may affect pacing on open sections of the course. High humidity (81%) will make it harder to cool down through sweat — increase fluid intake accordingly.
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Race Info
The Chelmsford Marathon is a single-lap road race that starts and finishes in Central Park, Chelmsford, Essex, running through the park's tree-lined avenues and out into the surrounding Essex countryside. A half marathon runs an out-and-back course on the same morning, starting half an hour after the marathon's 9:00 AM gun. The race has run each October since at least 2016 and raises funds for Little Havens Children's Hospice.
