What public holidays/events in Barcelona should I be aware of?

La Mercè (September) is Barcelona's largest festival, celebrating the city's patron saint with parades, fireworks, concerts, and cultural events. Expect large crowds and vibrant street celebrations. Sant Jordi’s Day (April 23rd) is a beloved local holiday, often referred to as the Catalan Valentine’s Day. The city fills with book and flower stalls, as couples exchange gifts of roses and books.

Three Kings Day (January 6th) features a grand parade called the Cavalcada de Reis, with floats and festivities marking the end of the Christmas season.Diada Nacional de Catalunya (September 11th) is Catalonia's National Day, with political demonstrations, cultural events, and public gatherings throughout the city.

Christmas and New Year (December) see festive markets, lights, and celebrations. Key dates include Christmas Day (December 25th) and New Year's Eve (December 31st).