San Marcos is a town in Northern Peru, capital of San Marcos province in the region of Cajamarca. San Marcos has volleyball facilities located …San Marcos is a town in Northern Peru, capital of San Marcos province in the region of Cajamarca. San Marcos has volleyball facilities located at Doña Fide's. San Marcos has a subtropical highland climate with warm days and cool nights. San Marcos has a dry season from June to August.