Barcelona in September is a city alive with rhythm, colour, and tradition. At its heart lies La Mercè Festival, the city’s grand celebration honouring its patron saint, Our Lady of Mercy. What began as a religious feast in the 13th century has transformed into one of Europe’s most spectacular cultural events, seamlessly blending Catalan heritage with modern-day creativity.

The History Behind La Mercè Festival
La Mercè Festival dates back to 1687, when Barcelonians prayed to the Virgin of Grace (Mare de Déu de la Mercè) to end a plague of locusts. Their prayers were answered, and the city declared her its patron saint. Over time, this devotion evolved into a civic celebration, featuring religious processions, public gatherings, and firework displays.
Today, La Mercè has grown far beyond its origins. It has become a week-long showcase of Catalan culture, drawing visitors from across the globe who come to witness its fiery parades, towering human castles, and contemporary performances.

A Sensory Overload: What to See and Do
The magic of La Mercè Festival lies in its diversity. The streets are alive with gegants (giant papier-mâché figures), correfocs (fire runs where devils dance through sparks), and the awe-inspiring castellers who build human towers several storeys high. For music lovers, the BAM (Barcelona Acció Musical) Festival brings indie bands and experimental artists to open-air stages across the city.
Families will find plenty to enjoy too, from puppet shows to circus acts, while night owls can revel in DJ sets, audiovisual installations, and projection mapping on the façades of Barcelona’s most iconic buildings.
La Mercè Festival is a love letter to Catalan identity. It highlights traditions that have been passed down through generations while giving space to contemporary artistic voices. Sustainability has also become a core part of the festivities, with the city making conscious efforts to reduce waste, promote eco-friendly transport, and ensure accessibility for all.

When and Where to Experience It
La Mercè Festival typically takes place from 22 to 25 September each year, though the programme often stretches into an entire week. The events are spread throughout the city, with Plaça de Sant Jaume, Parc de la Ciutadella, and Montjuïc serving as key hubs of activity.
Whether you’re there for the history, the music, or the fire-breathing spectacle, La Mercè offers an unmissable opportunity to experience Barcelona at its most vibrant and creative.
Barcelona, Spain
Dates: 22 – 25 September (annual)
Contact: +34 933 042 000
Website
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