Kielder Marathon
Race Day Weather
Cool morning, light wind, possible rain
Runners will face temperatures starting at 49°F and rising to 53°F, with a light wind from the SW at 12 mph. Humidity will be high at 82%, prompting a strategy to start conservatively. Light rain is possible, so a throwaway layer may be advisable during the pre-race wait.
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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.
