Presidio Half Marathon
Race Day Weather
Comfortable temps, warming through the race, moderate wind
Mild 58°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 14mph may affect pacing on open sections of the course. Moderate humidity at 79% is worth noting for effort level, especially in later miles.
Pace Calculator
Get forecast alerts for Presidio 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 Presidio Half Marathon is an annual road and trail race in San Francisco, California, starting and finishing at Crissy Field. The course runs into the Presidio and crosses the Golden Gate Bridge before returning to the start. The event also includes 10K and 5K distances. It began as the Presidio 10, a 10-mile race held in spring, before being restructured into a half marathon and shifted to a June date starting in 2024.
