Barcelona in September: Weather, Events, Tips, & More
September is one of my favorite months in Barcelona and a great time to visit if you’re hoping for warm weather without the peak summer crowds.
I live in Barcelona and I love that September still feels like summer (especially at the beginning of the month), but things slowly start to cool down as fall gets closer.
In this guide, I’ll cover everything you need to know about visiting Barcelona in September, including what the weather is like, what to pack, the best things to do, upcoming events, and some tips for planning your trip.
Is September a Good Month to Visit Barcelona?
Absolutely! September is honestly one of my favorite months in Barcelona and a really great time to visit.
The weather is still warm and sunny, especially at the beginning of the month, but you usually don’t have the intense heat that you can get in July and August.
It’s still warm enough for beach days while also being much more comfortable for walking around and sightseeing.
The peak summer crowds also start to die down as the month goes on, although Barcelona is definitely still busy in September.
Another reason to visit is the events! September is a big month in Barcelona, with the National Day of Catalonia and La Mercè, one of the city’s biggest festivals of the year.
Weather in Barcelona Spain in September
Here’s an overview of Barcelona weather in September:
Average Temperatures in Barcelona in September
In September, the average high temperature in Barcelona is typically around 79°F (26°C) and the lows are typically around 69°F (20°C).
These temperatures are just right for exploring the city during the day and enjoying slightly cooler evenings.
It’s still warm enough to hit the beach during the day and cool enough to wear a light jacket in the evenings.
Average Rainfall in Barcelona in September
September sees an average rainfall of about 1.8 inches (48 mm), and 13.8 average rainfall days during the month.
Compared to other months of the year, September is the third rainiest month of the year after October and April.
You might encounter a few rainy days, but they’re usually brief and probably won’t ruin your plans.
It’s always a good idea to pack a small travel umbrella or a light rain jacket just in case.
Average Humidity in Barcelona in September
Humidity in Barcelona during September is pretty manageable, averaging around 71%.
Similar to the rainfall months, it’s the third highest month with the most humidity after October and April.
It can feel a bit muggy on some days, but generally, the combination of warm weather and sea breezes still makes it feel pretty comfortable.
Average Sea Temperatures in Barcelona in September
The Mediterranean Sea is still swimmable in September, with average sea temperatures around 75°F (24°C).
It might feel a little cold if you’re someone that prefers warmer waters, but there will still be a lot of people swimming in the sea.
And if it’s too cold for a dip, you can still lay out on the beach or visit one of the beach bars and enjoy a cocktail with ocean views.
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Things to Do in Barcelona in September
Here are some of the best things you can do in Barcelona in September:
- Visit La Sagrada Familia: You really can’t visit Barcelona for the first time without seeing La Sagrada Família, which is Gaudí’s most famous work.
- Explore Park Güell: Park Güell is another Gaudí must-see, with colorful mosaics, some seriously unique architecture, and great views overlooking Barcelona.
- Take a Day Trip to Montserrat: Montserrat is one of my absolute favorite day trips from Barcelona and September is a great time to go. It’s about an hour outside the city and known for its dramatic mountains and historic monastery.
- Take a Day Trip to Costa Brava: If you want even better beaches, head north of Barcelona to the Costa Brava. The coastline is absolutely gorgeous, with clear turquoise water, little coves, and seaside towns like Tossa de Mar.
- Attend an FC Barcelona Soccer Game: September falls right in the middle of football season, so check the FC Barcelona schedule to see if there’s a home game during your trip.
- Take a Cava Day Trip: The nearby Penedès wine region is known for its cava production, and a winery tour is a great way to explore the vineyards, visit underground cellars, and sample local sparkling wines.
- Relax at the Beach: June is a great time to spend an afternoon at Barceloneta or one of the other beaches in Barcelona.
- Go on a Sailing Adventure: The warmer weather is perfect for a sailing tour along Barcelona’s coastline, where you can enjoy views of the city skyline while sipping a glass of cava on the Mediterranean.
Special Events in Barcelona in September
Here are some of the top events happening in Barcelona in September:
- National Day of Catalonia (La Diada): Celebrated on September 11th, this public holiday marks Catalonia’s national day with parades and cultural events. It’s a great opportunity to immerse yourself in Catalan culture and traditions.
- La Mercè Festival: This annual festival happens from September 23-27th and celebrates the patron saint of Barcelona, La Mercè. During this time, there are parades, concerts, street parties, human towers, fireworks, and many cultural events happening all over the city.
- BAM Festival: This music festival takes place during La Mercè Festival and features free outdoor concerts by local and international artists.
- Formula One Spanish Grand Prix: From September 10-12, 2027, the Spanish Grand Prix brings top Formula One drivers and motorsport fans to the Circuit de Barcelona-Catalunya for an exciting weekend of racing.
- Festa Major del Poblenou: This neighborhood festival takes place in the Poblenou area from September 10-20th and is filled with concerts, food, street performances, and many other fun activities.
- Festa Major de Barceloneta: Similar to the Festa Major del Poblenou, the Festa Major de Barceloneta takes places in the Barceloneta neighborhood starting around September 26th.
Clothes to Wear in Barcelona in September
When deciding what to wear in Barcelona in September, I’d recommend packing a mix of summer clothes and a few layers for cooler weather.
Shorts, dresses, skirts, t-shirts, and linen pants are all great options, especially at the beginning of the month when it still feels like summer. I’d also bring jeans or pants and a light sweater or jacket for cooler evenings later in September.
Comfortable sneakers or sandals are essential for exploring the city.
One thing I’ve noticed living in Barcelona is that locals seem to switch to closed-toe shoes as soon as the first cooler days arrive, even if it warms up again!
I’d also recommend packing sunglasses, a hat, and a swimsuit if you’re planning to spend time at the beach.
What To Pack For Barcelona in September
Here’s a list of essentials to add to your Spain packing list for your September trip:
- Sunscreen: The sun can still be pretty strong in September, so make sure to bring along sunscreen to protect your skin. Biodegradable sunscreen is best if you’re planning on swimming in the ocean.
- Umbrella: Although it doesn’t usually rain a ton, September is still one of the rainier months in Barcelona, so it’s a good idea to bring along a compact travel umbrella, just in case.
- Light Jacket or Sweater: While the days are usually warm, evenings can get cooler once the sun goes down. Bring along a light jacket or sweater to stay comfortable.
- Anti-Theft Bag: Unfortunately pickpocketing in Barcelona is pretty common, so definitely bring an anti-theft bag like a belt bag or crossbody purse with secure zippers to keep your belongings safe.
- Phone Leash: In addition to an anti-theft bag, I wouldn’t come to Barcelona without a phone leash to secure your phone. Phones are easily stolen out of your hands or if you leave them on a table or in your pocket.
- Portable Charger: With all the picture-taking and navigation apps you’ll be using, your phone battery may not last all day. Bring along a portable charger to keep your devices charged on-the-go.
- Travel Adapter: In Spain, the power outlets are type F (round two-prong plug), so make sure to pack a travel adapter if you’re coming from the US or a country with different outlets. You’ll also need to make sure your devices are dual voltage to be able to use them in Spain.
Visiting Barcelona in September: FAQs
Here are the answers to some of the most frequently asked questions about visiting Barcelona Spain in September:
Is Barcelona cold in September?
No, Barcelona is generally warm in September with the average temperature around 79°F (26°C). However, evenings can be cooler, it’s a good idea to pack a light jacket.
Will Barcelona be hot in September?
Daytime temperatures in Barcelona in September are pretty warm, averaging around 79°F (26°C). The weather in Barcelona in September is warm but not uncomfortably hot.
Can you swim in Barcelona in September?
Yes, the water temperature in Barcelona in September are still warm enough for swimming. However, if you prefer warmer waters, it might feel a bit cold.
How many days should you spend in Barcelona?
I’d recommend spending at least 3 days in Barcelona to give you enough time to see the major sights, and enjoy some local food and beach time.
When is the best time of year to visit Barcelona?
The best time to visit Barcelona is May, June, and September. These months are a great time to visit because they offer nice weather, fewer crowds, and lower prices compared to the peak summer season.
Final Thoughts: Barcelona in September Guide
September is one of my favorite months in Barcelona, with warm, sunny weather, slightly cooler temperatures, and fun local events like La Mercè.
It’s still a popular time to visit, so I’d recommend booking major attractions like La Sagrada Familia and Park Güell in advance.
I’d also suggest packing mostly summer clothes with a few light layers for cooler evenings, along with comfortable walking shoes and a compact umbrella just in case.
Enjoy your September trip to Barcelona!
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