Barcelona Weather September Averages, Spain

    Barcelona Weather for September 2023

    What's the weather like in Barcelona in September

    After August the weather cools down considerably and some of the best Barcelona weather conditions can be experienced in the months of September, October and November

    Is September a good time to visit Barcelona?

    If the sweltering and humid conditions of August are too much for you, a visit in September could be more suitable. It is a lost more pleasant to walk around and enjoy what the city has to offer, such as the Sagrada Familia and Las Ramblas. 

    Average Daytime Temperature

    The average daytime temperatures in the month of September are around 26°C (78°F), while average minimum temperatures drop down to 17°C (62°F.) The summer season in Barcelona generally lasts from June 22 until September 19. So even during September you are still guaranteed warm sunshine on most days of the week.

    Sunshine Hours

    There is an average of nine hours of sunshine per day during September in Barcelona that's two hours less in comparison to August.

    Daytime Hours

    During September, day lengths are decreasing. From the start to the end of the month, the length of day decreases by a total of 1:19 hours.

    On average, the shortest day of the month is September 30 with 11:47 hours of daylight, while the longest day is September 1, with 13:06 hours of daylight.


    Precipitation is also generally low at this time of year, as it is for most of the year.

    The average amount of precipitation is about 40mm, spread across a total of nine days.

    Precipitation is most likely around September 20, at 35%, while precipitation is least likely around September 1, at 31%.

    Throughout this month, the most common forms of precipitation are thunderstorms and moderate rain.

    Cloud Coverage

    Throughout September in Barcelona the median cloud over usually stays around a partly cloudy 41% and doesn't vary substantially over the course of the month.


    Relative humidity fluctuates between a mildly humid 57% and a very humid 91%. It rarely drops below a comfortable 40% or reaches as high as 100%!

    On average, the air is driest on September 28, when the relative humidity can fall below 66% three days out of four. But the air is likely to be most humid around September 23, where relative humidity levels can rise above a very humid 87% three days out of four.


    Wind speeds throughout September can pick up from 0mph to 14mph, rarely exceeding 19mph.

    The highest average wind speed of 7mph is likely to occur around September 30, at which time the average daily maximum speed is a moderate breeze of 14mph.

    At this time of year, the wind is most likely to come from the north, followed closely by the southwest.

    Can you swim in Barcelona in September?

    If you want to take a dip in September, the average temperature of the sea is 24°C, which is still warm enough to enjoy your watersports.

    However, the sea temperature is usually warmest in August, where it can top 26°C! 

    Cooler Temperatures

    Cooler temperatures mean that exploring Barcelona, and the outdoor activities the city has to offer, are more enjoyable than in the hotter months.

    You can also fill your evenings with the wonderful nightlife that Barcelona is famous for.

    If you do venture out, take full advantage of a wide range of restaurants, bars and clubs. There is plenty for you to see and do in the evening, as well as in the day.

    There are also a number of festivals and festivities that can be enjoyed in September in Barcelona.

    Barcelona Hotels in September

    H10 Catalunya Plaza Hotel

    H10 Catalunya Plaza is located in the very heart of Barcelona and provides guests with everything needed for a comfortable stay, as well as complimentary wine and chocolates upon arrival. The 19th century building still retains many of its original features such as tiles and ornately carved wooden doors, combined with modern touches. The hotel also provides a restaurant, terrace and free wifi throughout.

    Catalonia Catedral Hotel

    Catalonia Catedral is a wonderful four-star hotel situated in the Ciutat Vella district of Barcelona. This place is set in a Modernist building, located just 100m from Barcelona Cathedral and even offers its own rooftop swimming pool and a Japanese-style terrace and garden.

    Royal Passeig de Gracia 

    Royal Passeig de Gracia is another four-star hotel worth considering. Located in the heart of L'Eixample, this modern and comfortable hotel features a seasonal rooftop sky lounge offering breathtaking panoramic views out onto the rest of Barcelona. All of the rooms also come with air-conditioning, a flat-screen TV, free Wi-Fi and ensuite bathroom with a rain-effect shower!

    Grupotel Gravina

    However, if you are looking for somewhere a bit cheaper you may want to stay at the three-star Grupotel Gravina, also in Ciutat Vella. This hotel is housed in an attractive 19th-century building and is situated close to Plaza Catalunya and Las Ramblas. The hotel offers air-conditioned rooms which feature modern furniture and parquet floors.

    Hotel Vueling Bcn by HC 

    Last but not least, Hotel Vueling Bcn by HC is a fantastic four-star hotel situated in L'Exiample. The hotel is within 5 minutes' walk to the Universitat Metro Stations and even offers a small outdoor swimming pool, gym and free Wi-Fi to guests.

    Barcelona Beaches in September

    Barceloneta Beach 

    Without a doubt Barceloneta is the most popular beach in the whole of Barcelona. This golden sand beach is located in the traditional fishing district of the city and is one of Barcelona's best-loved beaches by both locals and tourists. It can get very busy here on a hot, sunny day, however, if you don't mind the crowds this beach offers a number of facilities such as beach tennis, volleyball, restaurants, ice cream kiosks and more.

    Mar Bella and Nova Mar Bella Beaches

    Mar Bella and Nova Mar Bella are both very popular with young people. This beach has an area for naturists and is notorious for attracting a cosmopolitan crowd. There are a number of amenities here such as adapted showers, public toilets, restaurants, sun loungers and beach umbrellas.

    Llevant Beach

    Llevant is slightly quieter than the other beaches in Barcelona. This is the city's newest beach, which opened back in 2006. It features a number of facilities including showers, toilets, beach umbrellas, sun loungers, kiosks and bicycle parking areas.

    Sitges Beach

    On the other hand, Sitges Beach is located just outside of Barcelona. You will need to catch a train from Sants Station to get to this beach; however, it is definitely worth it on a sunny day if you want to escape the crowds.

    Bars and Restaurants in Barcelona in September

    La Bodegueta Provenca (The Little Wine Cellar) 

    La Bodegueta Provenca (The Little Wine Cellar) serves traditional tapas from classic, lightly battered calamari to dried veal meat. If you want an authentic Spanish experience, this is the place to go to. It is also highly recommended to wash it all down with a refreshing Ribera del Duero or glass of beer.

    La Pubilla del Taulat

    Tucked away in the backstreets of Barcelona you will find the delightful La Pubilla del Taulat. This 19th century building offers traditional tapas, but make sure to arrive here before 10pm as it can get extremely popular here during the height of the tourist season. They serve all the delicious Spanish classics at this place including patatas bravas (irresistible spicy potatoes) and chocos (fried cuttlefish).


    Elegant and sophisticated, Marmalade offers an impressive range of cocktails, including some updated classics. With copper walls, luxurious drapes and chic, leather furniture, this 1950s style bar cannot be missed. Mocktails, and cocktails with a chocolatey twist, this place caters for all.

    Magic Club

    For a lively atmosphere you may want to try the Magic Club, located at Passeig de Picasso. This lounge bar is often packed with regulars at the weekend, who enjoy taking to the dance floor once the evening kicks in. This is a great place to experience a fun and lively Spanish party atmosphere.

    Things to do in Barcelona in September

    IMAX cinema

    If it's too hot or maybe even raining you may want to visit the IMAX cinema, situated in the Port Vell. This movie theatre was the first IMAX Integral movie theatre in the world, where films are shown on giant screens allowing you to experience a totally immersive atmosphere. There are a whole host of movies shown here in English, Spanish and Catalan.

    Poble Espanyol de Montjuic

    Another place worth visiting is Poble Espanyol de Montjuic, also known as the Spanish Village. This stunning village is made up of different quarters that replicate the style of houses and interesting architecture found in different parts of Spain. The area is also home to a whole host of craft shops and workshops where you can find handmade Spanish goods to take back home as souvenirs.

     Palau de la Musica Catalana

    To escape the September rain and enjoy an unforgettable music concert at Palau de la Musica Catalana. This jewel box like concert hall opened in 1908 and features Catalan modernism with curved elements and dynamic shapes. Rich and opulent decor, and an intricate stained-glass skylight, this venue is seen as one of the most beautiful in the world. This is a well visited tourist attraction, by aid of guided tours, just as much as it is a fully functioning music venue.

    Casa Mila 

    Antoni Gaudi's famous Catalan works can be found all over the city, but one of the most highly recommended is the Casa Mila also known as "la Pedrera." This building was constructed between 1906 and 1912 and can be found in the Eixample district of the city. This distinctive building is made up of wavy brick work and colourful tiles.

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