Nairobi Marathon
Race Day Weather
Comfortable temps, big temp swing
Starting at 64°F, heat will be a factor from the gun — go out conservative and stay on top of hydration. Temps will climb significantly to 79°F by later miles, so expect fading conditions as the race progresses. Light winds shouldn't be a major factor for pacing. Moderate humidity at 70% is worth noting for effort level, especially in later miles.
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Race Info
The Nairobi Marathon is Kenya's only World Athletics Road Race Label marathon and the country's largest annual road race. Runners start near Carnivore Grounds on the Southern Bypass and finish at Uhuru Gardens, passing views of Nairobi National Park along the route. The 2025 edition drew a record 30,602 finishers from 92 nations across the marathon, half marathon, 10K, and 5K events. The race is a Boston Marathon qualifier.
