San Sebastián Marathon
Race Day Weather
Cool start, steady rise
Runners will face temperatures rising from 45°F at the start to 52°F by finish. Winds will be light, averaging 9 mph from the W, with high humidity at 80%. Due to the cool conditions, runners can maintain their pace, but should remain aware of the potential for light rain during the event.
Pace Calculator
Enter a finish time to see what race day does to it.
Get forecast alerts for San Sebastián 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 San Sebastián Marathon runs through Donostia's old town and along La Concha Bay in Spain's Basque Country. First held in 1978, it is Spain's second-oldest marathon after Madrid's. The route starts on Calle Hernani near San Sebastián's city hall and finishes on the Boulevard after a flat, urban course through the Antiguo, Amara and Gros neighborhoods. The men's course record is 2:09:34, set by Kenya's Timothy Cherigat in 2002.