Kielder Marathon
Race Day Weather
Cool start, steady conditions
Runners will face a temperature range of 52°F to 55°F with high humidity at 91%. There will be a headwind throughout, peaking at 16 mph, which may affect pacing strategy. Due to the humidity, it's advisable to start conservatively and stay hydrated throughout the race.
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Race Info
The Kielder Marathon runs almost entirely off-road on trails around Kielder Water in Northumberland, England, the largest man-made lake in Northern Europe by capacity. The course follows the Lakeside Way through Kielder Forest, England's largest working forest. The race weekend also includes a half marathon, 10K, gravel duathlon, and junior races around the reservoir.
