As autumn approaches, Barcelona remains a vibrant and attractive destination with warm weather and plenty of activities and events to enjoy. Barcelona in September is the ideal time to experience the city’s unique culture, festivities, and outdoor adventures.
Here’s a guide to what to expect when visiting Barcelona in September.
Related reading: 10 reasons to visit Barcelona in autumn
Here is an overview:
The best events taking place in September in Barcelona
Add some of these activities and events to your itinerary to ensure a truly memorable experience in Barcelona.
Bank holidays
Barcelona loves to celebrate national holidays, and September is no exception, as there are two public holidays during this month. It is important to know when the national holidays are, as many shops and small cafes tend to close on these days, allowing everyone to take part in the festivities.
The Diada (Catalan National Day)
Every year on September 11, Catalonia celebrates its National Day, La Diada. This holiday commemorates the fall of Barcelona during the War of the Spanish Succession in 1714. The city comes alive with parades, floral offerings and various political events. It is a day full of history and pride, which allows you to get to know Catalan culture and heritage in depth.
La Mercè
At the end of September, Barcelona comes alive with one of its most famous celebrations, La Mercè, in honour of the city’s patron saint.
Among the highlights of the festival is the exciting Correfoc, where Locals dress up as devils and dance amidst fireworks, the imposing Castellers, human towers that display incredible teamwork and strength, and the vibrant parade of Gigantes, with giant figures.
In addition, the BAM Festival (Barcelona Acció Musical) offers free open-air concerts featuring indie rock music.

Book Week
Barcelona Book Week, known as La Setmana Del Llibre, is a joyous occasion for book lovers and takes place at the end of September.
This free event is ideal for families visiting Barcelona, as it offers opportunities to discover a wide variety of Catalan literature through book stalls, readings and workshops. It’s a wonderful way to get a taste of the local literary scene without spending a fortune.

Musical events in Barcelona
September marks the last month for several popular music events in Barcelona: Highlights include Brunch in the Park, La Terrazza and the Mas I Mas Festival.
These events typically run from May to September, making the most of Barcelona’s splendid weather with open-air stages. With a wide range of musical genres, Barcelona ensures there’s something for everyone. Book your tickets in advance to savour the final month of these open-air festivals. Summer music festivals in Barcelona!
If you are in Barcelona in August, check out our article The best musical events in August in Barcelona

Race of the Mercè
The Cursa de la Mercè, which was created in 1979 to promote sporting participation, has become a highlight of the Barcelona calendar. It brings together experienced athletes with novice runners, fostering a sense of community.
As well as being a sporting event, this annual race serves as a meeting point for locals and tourists alike. Whether you participate or support the race from the sidelines, it is an excellent opportunity to immerse yourself in the city’s vibrancy and scenic beauty.

Watersports
September in Barcelona offers ideal weather for water sports enthusiasts, with warm sea temperatures creating perfect conditions for kayaking, paddleboarding and other water activities along the city’s picturesque coastline.
Exploring Barcelona’s beautiful shores from the water offers a unique perspective of the city’s stunning landmarks and vibrant atmosphere. Whether you’re a beginner looking to try a water sport for the first time or simply looking for new challenges, the gentle waves of the Mediterranean Sea cater to all skill levels.
Related reading: Water sports in Barcelona

Poblenou Festival
In mid-September, the vibrant Poblenou neighbourhood comes alive with its vibrant festival, which combines cherished Catalan traditions with contemporary activities such as live music, dance performances and much more.
Stroll through the bustling streets adorned with colourful decorations and soak up the lively atmosphere where locals and visitors mingle. This neighbourhood event not only highlights the cultural richness of Poblenou, but also offers a unique insight into the authentic festive spirit of Barcelona.

Rooftop bars
Don’t forget to take the opportunity to sample Barcelona’s rooftop bars before they close their doors for the season in October. These elevated venues boast stunning views of the Barcelona cityscape and offer an idyllic setting to relax with a refreshing drink in hand.
Whether you want to enjoy cocktails with friends or take in a romantic sunset, rooftop bars offer a memorable experience that captures the essence of Barcelona’s vibrant nightlife.
Related reading: The coolest bars in Barcelona

Indoor Activities
Although September typically has pleasant weather, it’s not uncommon to experience occasional rainy days. Fortunately, Barcelona offers a variety of indoor activities to keep you entertained.
Explore amazing museums like the Museu Picasso, where an extensive collection of Picasso’s masterpieces awaits you, or the Museu Nacional d’Art de Catalunya, which houses stunning Romanesque and Gothic art. For a different experience, visit the CosmoCaixa Science Museum, which offers interactive exhibits suitable for visitors of all ages.
You can also immerse yourself in Barcelona’s rich cultural scene by attending theatre performances or discovering cosy cafés.
Related reading: The most unusual museums in Barcelona

September is packed with exciting events and activities, so be sure to make the most of all it has to offer!