Premià de Mar Main Festival Activity · Premià de Mar, Maresme, Barcelona Image of Premià de Mar, not of the place itself. The Festa Major of Premià de Mar is celebrated at the beginning of July (7 to 12 in 2026) in honour of Sant Cristòfol, patron of the town; the municipality also celebrates a smaller festa major around Carnival. Photo: Friviere (CC BY 3.0) What to see and do in Premià de Mar