What to do in Barcelona in September 2025 ?
Agenda of festivals and cultural events in September 2025
In September, Barcelona offers a multitude of activities and events perfect for enjoying the city under the late summer sun: the National Day of Catalonia, La Mercè, and still the nighttime sightseeing tours of Barcelona by bus.
Barcelona Events Calendar September 2025
Extreme Barcelona - September 5 to 7, 2025
Extreme Barcelona is a must-attend festival for extreme sports enthusiasts. Over three days, the city will pulse with daring tricks and spectacular performances in BMX, skateboarding, rollerblading, and motocross. This international festival celebrates not only adrenaline and boldness but also urban lifestyle and innovation. Whether you're a spectator or participant, get ready to be amazed by the energy and talent of the athletes.
La Diada de l'Onze de Setembre - September 11, 2025
Also known as Diada Nacional de Catalunya, it is the National Day of Catalonia. It is celebrated every year on September 11 and commemorates the fall of Barcelona in 1714, during the War of Spanish Succession, against the troops of Philip V of Bourbon. This event marked the end of Catalan institutions and the independence of the territory. What La Diada means today: La Diada has become a symbolic day for expressing Catalan identity and, in recent decades, for demands for autonomy or independence of Catalonia. The day is marked by rallies, political demonstrations, concerts, and other cultural and commemorative events throughout Catalonia. What you can see during La Diada: Demonstrations and parades: The streets of Barcelona, especially those around the city center and Parc de la Ciutadella, fill with pro-independence demonstrations. Floral offerings: Many citizens and political representatives lay flowers at monuments dedicated to the heroes of 1714, such as that of Rafael Casanova in Barcelona. Cultural events: Concerts, street performances, and traditional events take place in various neighborhoods. Good to know for visitors: Closures: Many shops, restaurants, museums, and other institutions may be closed or have reduced hours on this day. Traffic: Expect traffic disruptions, especially in downtown Barcelona due to the gatherings.
>> La Diada de l'Onze de Setembre
La Mercè - September 23 to 28, 2025
La Mercè is the most iconic festival of Barcelona, celebrating the city's patron saint, the Virgin of La Mercè. Expect parades, free concerts, street performances, fireworks, and traditional events such as the "castellers" (human towers) and "correfoc" (fire runs with fireworks). Where? All over the city, but especially in the Gothic Quarter, Plaça de Sant Jaume, and Parc de la Ciutadella.
>> La Mercè
Neighborhood Festes Majors
In September, several neighborhoods in Barcelona celebrate their Festes Majors, popular festivals rooted in local traditions.
- Poblenou: from September 6 to 15, the neighborhood comes alive with concerts, craft markets, and typically Catalan activities.
- Horta: during the same period, from September 6 to 15, the streets of Horta host a varied program of cultural events and festivities for all ages.
- Barceloneta: from September 27 to October 6, this seaside neighborhood celebrates its heritage with evenings of sea shanties (habaneras) and correfoc shows — spectacular parades of fire and music.
Barcelona Gallery Weekend - September 18 to 21, 2025
An annual event dedicated to contemporary art, during which Barcelona’s art galleries open their doors with special exhibitions, guided tours, and artist meet-and-greets. It’s a must-attend for art lovers and professionals.
This year’s participating galleries:
ADN Galeria / Joaquin Díez-Cascón / Manuel Expósito
Chiquita Room / Cristina Arribas
ethall / Caniche Editorial
Fuga / Lluís Bassat
Galería Alegría / Antonio de Barnola
galeria SENDA / Álvaro López de Lamadrid
House of Chappaz / Manuel Lomas, Tales Tommasini
Mayoral / Jorge Vidal
Palmadotze / Josep Anton Uberni y Anna Julià
Pigment Gallery / Carmen i Lluís Bassat, Ferran Josa, Rudi Peters, Miquel Rull
Prats Nogueras Blanchard / Miguel Ángel Sánchez
ProjecteSD / Álvaro López de Lamadrid
RocioSantaCruz / Pilar Cortada and Miquel Molins / Gloria Moure
SELTZ by Ritter Ferrer / Rafael Doctor Roncero
Suburbia Contemporary / Agnes Scheltema
Taché Art Gallery / Julio Vaquero (Fundació Sorigué)
>> https://www.barcelonagalleryweekend.com/
Flamenco Show at Los Tarantos: All July
Los Tarantos, the oldest flamenco tablao in Barcelona, located on Plaça Reial, offers a varied program with daily shows highlighting different facets of flamenco.
Show only or show + tapas options available.
>> Los Tarantos
Barcelona by Night Sightseeing Bus Tour (until September 11, 2025)
Enjoy the last days of the night sightseeing bus tour... A wonderful experience that returns for Christmas and New Year’s...
> 1h 40-minute round trip in an open-top double-decker bus
> Guided night tour of Barcelona
> Free Wi-Fi access
> Departure and return at "Plaça de Catalunya".
>> Your tickets for the night sightseeing bus tour
Madame Butterfly at Palau de la Música Catalana
The opera Madame Butterfly by Giacomo Puccini will be presented at the Palau de la Música Catalana in Barcelona, as part of the NovAria Opera Cycle. Performance dates and times are as follows:
- September 6, 2025, at 7:00 PM (Saturday)
- December 6, 2025, at 6:00 PM (Saturday)
Madame Butterfly is a two-act opera telling the tragic story of Cio-Cio-San, a young geisha, and her relationship with the American naval officer Pinkerton. A great classic to rediscover or experience for the first time.
>> Palau de la Música Catalana
Dinner Under the Stars at Fabra Observatory (until October 5, 2025)
How about combining gastronomy and astronomy for an unforgettable evening? From May to October, the Fabra Observatory invites you to enjoy a refined open-air dinner overlooking Barcelona, followed by a journey into the mysteries of the starry sky through the telescope.
The Magic Fountain of Montjuïc: Spring and Summer
The Magic Fountain of Montjuïc (Font Màgica de Montjuïc) is a spectacular series of fountain displays located between Plaça d’Espanya and the Palau Nacional in Barcelona. Show of sound, light, and water jets: the main fountain features a synchronized show of colorful water jets, lights, and music, attracting thousands of visitors every week. Created for the 1929 International Exposition, it has become one of the city’s most famous nighttime attractions.
Usual Magic Fountain showtimes:
- June to September: Wednesday to Sunday, from 9:30 PM to 10:30 PM
- October: Thursday to Saturday, from 9:00 PM to 10:00 PM
- November to March: Thursday to Saturday, from 8:00 PM to 9:00 PM
Each show lasts about 15 to 20 minutes and starts every 30 minutes. Admission is free and no ticket is required.
>>> For even more ideas on what to do, visit our page Things to do in Barcelona? which summarizes all the must-see attractions in the Catalan capital!
Good to know: The best passes for Barcelona on one page!
Barcelona Weather September
The month of September in Barcelona is generally one of the most pleasant. There are fewer tourists and the weather is glorious. Temperatures are still warm but starting to cool down. Rainfall is low, and the days are sunny. Average temperatures are around 23°C, with minimum temperatures around 18°C.