Istanbul 15.5K
Istanbul 15.5K race day weather
Comfortable temps, warming through the race, moderate wind
Mild 57°F temps at gun time mean comfortable early miles without overheating risk. Temperatures rising to 68°F through the course will gradually increase perceived effort in the second half. Moderate winds around 16mph may affect pacing on open sections of the course. High humidity (81%) will make it harder to cool down through sweat — increase fluid intake accordingly.
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Get your personalized Istanbul 15.5K race plan
A mile-by-mile breakdown of where your time goes, weather-adjusted splits, fueling timeline with aid stations, packing checklist, carb tracker, spectator guide, all built around your goal and race-day conditions.
About the Istanbul 15.5K
The 15.5K is a point-to-point run that starts at the Asian-side entrance of the Bosphorus Bridge, officially the 15 July Martyrs Bridge. Runners cross the bridge into Europe and follow the first part of the marathon course down Barbaros Boulevard past Dolmabahce Palace, over the Galata Bridge and along the shore through Sirkeci and Kumkapi. The finish is at Yenikapi on the European side.
