Nairobi Half 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 80°F by later miles, so expect fading conditions as the race progresses. Light winds shouldn't be a major factor for pacing.
Pace Calculator
Enter a finish time to see what race day does to it.
Get forecast alerts for Nairobi Half Marathon
We'll text or email you when the forecast shifts — so you can adjust gear, pacing, and strategy. Max one per day.
Race Info
The Nairobi Marathon half marathon covers 21.1 kilometers along the Southern Bypass, a wide dual carriageway on the southwestern edge of the city. Runners start outside Carnivore Restaurant and the road runs beside Nairobi National Park, the only national park inside a capital city. The course is largely flat, with turning points on the bypass, and it finishes at Uhuru Gardens.