2026 San Sebastián Marathon

In late November, San Sebastián's mild autumn weather makes the multi-loop course along La Concha bay genuinely pleasant, with the old town's pintxos bars and the Basque cider season offering a warm, flavorful reward after the finish. The route's lap structure lets you soak in the city's landmarks—the Cathedral, the Victoria Eugenia Theatre, and the modern Kursaal—while the quieter, off-peak season means fewer crowds and a more intimate feel to the seaside streets.