Month guide · Barcelona · Spain
Barcelona in September
What September is really like in Barcelona: weather, crowds, prices, events and what to pack.
Updated By the AMZBooking editorial team
Photo: Canaan, CC BY-SA 4.0
Quick answer
September is one of the best months to visit Barcelona. Expect average highs of 26°C (79°F), lows of 20°C (68°F), about 6 rainy days and roughly 12.4 hours of daylight. Still warm with a warm sea and fewer crowds after the first week; the city's biggest festival comes late in the month.
Key facts
- Average high / low
- 26°C (79°F) / 20°C (68°F)
- Rainy days
- About 6
- Daylight
- About 12.4 hours
- Sea temperature
- 23°C (73°F)
- Crowds
- Busy
- Hotel prices
- High
Weather in September
September is the 4th-warmest month in Barcelona: days average 26°C (79°F) against a yearly average high of 21°C (70°F), and nights fall to about 20°C (68°F). Rain falls on roughly 6 of its 30 days. Compared with August (29°C (84°F)), September is cooler; by October highs drop to around 22°C (72°F).
- Sunrise (15 September)
- About 07:31
- Sunset (15 September)
- About 20:01
- Daylight
- About 12.4 hours
- Sea
- 23°C (73°F)
Autumn (September–November). Warm September seas, La Mercè festival and mild October days, with heavier rain showers and quieter streets by November.
Crowds and prices
On a 1–5 scale, September rates 4 for crowds (the peak is June at 5) and 4 for hotel prices (highest in June). Book accommodation early: September is one of the pricier months.
Events in September
- La Diada, Catalonia's national day (11 September)
- La Mercè — castells, correfocs and concerts (around 24 September)
Dates move from year to year. Check the organiser’s site before booking travel around an event.
What to do in September
Mild, settled days suit walking, viewpoints and time outdoors.
Park · Gràcia
Park Güell
Take bus 24 towards the upper entrances to avoid the steep climb from Lesseps or Vallcarca Metro, and book the first or last slot of the day.
- Time needed
- 1.5–2 hours
- Cost
- Low cost
- Iconic
- Architecture
- Views
- Outdoors
- Kids
Architecture · Eixample
Casa Milà (La Pedrera)
Nicknamed La Pedrera, 'the stone quarry', Gaudí's last private building has an undulating stone façade without straight lines and wrought-iron balconies like tangles of seaweed.
- Time needed
- 1–1.5 hours
- Cost
- Mid-priced
- Architecture
- Iconic
- Views
- Art
Viewpoint · Montjuïc
Montjuïc
Ride the funicular from Paral·lel Metro, take the cable car up to the castle, then walk down through the gardens.
- Time needed
- Half a day
- Cost
- Free
- Views
- Outdoors
- Free
- Kids
- History
Museum · Montjuïc
Museu Nacional d'Art de Catalunya (MNAC)
The domed Palau Nacional, built for the 1929 International Exposition, holds Romanesque murals rescued from Pyrenean churches and reinstalled in apse-shaped rooms, alongside Gothic altarpieces and Catalan Modernista art.
- Time needed
- 2 hours
- Cost
- Low cost
- Art
- History
- Views
- Rainy day
The sea averages 23°C (73°F) — warm enough to swim. Best beaches near Barcelona.
What to pack
For highs near 26°C, lows near 20°C and 6 wet days: light layers for the day and a light jacket for the evening; comfortable walking shoes.
Is September a good time to visit Barcelona?
One of the best months to visit Barcelona, with 2 notable events on the calendar. The other best months are May–June and October. Compare every month.
Barcelona in other months
Questions travellers ask
+Is September a good time to visit Barcelona?
It is one of the best months to visit Barcelona. Still warm with a warm sea and fewer crowds after the first week; the city's biggest festival comes late in the month.
+How warm is Barcelona in September?
Average highs are around 26°C (79°F) and lows around 20°C (68°F).
+Does it rain a lot in Barcelona in September?
Expect rain on about 6 days of the month.