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.

There are also some really fun events happening throughout the month, including La Mercè, one of Barcelona’s biggest festivals of the year.

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.

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.

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.

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 in Barcelona in September, 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.

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.

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.

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. It’s Gaudí’s most famous work and definitely one of the most impressive churches in Barcelona. The interior is especially incredible when the sunlight comes through the colorful stained glass windows. Make sure to book your tickets on the official Sagrada Família website at least a couple of weeks in advance.

September is a month full of exciting events in Barcelona. Here are some highlights:

• 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.

September weather in Barcelona can change quite a bit throughout the month, so I’d pack a mix of summer and fall clothes.

For women, think light dresses, skirts, tank tops, short-sleeved shirts, linen pants, and comfortable sneakers or sandals for walking around the city. I’d also bring a light sweater or jacket for cooler evenings.

For men, shorts and t-shirts are fine during the warmer days, along with comfortable walking shoes. A lightweight jacket or long-sleeved shirt is also good to have for the evenings.

The beginning of September still feels very much like summer, but temperatures usually start cooling down later in the month. I’d definitely bring at least one pair of jeans or pants so you have options.

One funny thing I’ve noticed living in Barcelona is that there seems to be an unwritten rule among locals: as soon as we get that first cooler day around the middle of September, the open-toed shoes disappear!

Even if it warms up again afterward, you’ll suddenly see everyone switching to sneakers and other closed-toe shoes.

Also, don’t forget a swimsuit if you’re planning to spend time at the beach, plus sunglasses and a hat for those sunny days.

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.

Here are the answers to some of the most frequently asked questions about visiting Barcelona Spain in September:

September is honestly one of my favorite times of year in Barcelona, and I think it’s a great month to plan your trip.

You still get plenty of warm, sunny weather, but without quite as much of the intense summer heat. Plus, with events like La Mercè happening, it’s a really fun time to experience the city.

Just remember that Barcelona can still be pretty busy in September, especially around the major festivals, so I’d still recommend booking popular attractions in advance.

Hopefully this guide helps you know exactly what to expect and makes planning your September trip to Barcelona a little easier!

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