Kielder Half Marathon

Kielder, United Kingdom 5 Oct, 2025

The Kielder Half Marathon takes place in Kielder Water and Forest Park, located in the Northumberland National Park in northern England. Known for its remote and tranquil setting, the course takes runners through dense woodlands, along the shore of Kielder Water, and over rolling hills. The route offers spectacular views of the Kielder Reservoir and the surrounding mountains, providing a truly scenic and peaceful environment for runners. The course is challenging, with a series of inclines and technical sections, but it rewards participants with stunning natural landscapes.

After the race, participants can explore the Kielder Forest, enjoy a boat ride on the reservoir, or visit the Kielder Observatory for stargazing. The area is also known for outdoor activities like hiking, mountain biking, and fishing, making it a perfect destination for nature lovers.

Generic Half Marathon Time This represents the time you would expect to run a "generic" half marathon in. This is a half marathon with around 100 m (300 ft) of elevation gain and a temperature around 10°C (50°F). For best results, use our Race Predictor.

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Kielder Half Marathon Time


Statistics

Elevation
Elevation Gain 252 m 827 ft
Elevation Low 192 m 630 ft
Elevation High 250 m 820 ft
Weather
Expected Temperature (Low) 8°C 47°F
Expected Temperature (High) 12°C 54°F
Chance of Rain 55%

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The Kielder Half Marathon takes place in Kielder Water and Forest Park, located in the Northumberland National Park in northern England. Known for its remote and tranquil setting, the course takes runners through dense woodlands, along the shore of Kielder Water, and over rolling hills. The route offers spectacular views of the Kielder Reservoir and the surrounding mountains, providing a truly scenic and peaceful environment for runners. The course is challenging, with a series of inclines and technical sections, but it rewards participants with stunning natural landscapes.

After the race, participants can explore the Kielder Forest, enjoy a boat ride on the reservoir, or visit the Kielder Observatory for stargazing. The area is also known for outdoor activities like hiking, mountain biking, and fishing, making it a perfect destination for nature lovers.

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