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Barcelona Weather in September

Barcelona in September sees high temperatures, with highs around 25°C (77°F) and overnight lows of 19°C (66°F). Rainfall is fairly high at around 89 mm (3.5 in) on average, so pack waterproofs just in case.

Rainfall in Barcelona in September

Rain is expected on roughly 9 days, totalling around 89 mm (3.5 in) for the month. Rainfall intensity is on the higher side this month. Expect more substantial showers rather than light, passing rain.

Temperature in Barcelona in September

If you're visiting Barcelona in September, expect excellent temperatures with highs of 25°C (77°F) and overnight lows of 19°C (66°F). September marks the summer season. Overall, the month follows a fairly predictable daily temperature pattern. With lows of 19°C (66°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest.

Sunshine in Barcelona in September

The city usually sees around 218 hours of sunlight, indicating many sunny days , a great month for sightseeing.

Wind Speed in Barcelona in September

September sees wind speeds averaging 2 m/s (4 knots). You'll typically experience pleasant light breezes that move leaves slightly and feel refreshing. As an average, expect variation from very calm days to periods with more apparent air movement.

Average water temperature in September

With water at 22°C (72°F), you can expect warm, pleasant conditions for any water activity. There's no adjustment period, it feels comfortable straight away.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. May, June, July, August, September and October typically offer the best weather for Barcelona.

Barcelona Temperature in September

Min Temperature
19°C (66°F)
Max Temperature
25°C (77°F)
Water Temperature
22°C (72°F)
Chance of Rain
29%
Precipitation
89 mm (3.5 in)
Rainy days
9 days
Humidity
74%
Windspeed
2 m/s (4 knots)
Sunshine
218 hours
Percentage Sunshine

Barcelona Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Barcelona - and find the best time to visit.

Daily Historical Temperatures

50-year average (1976-2025)

Based on our historical records, temperatures in Barcelona typically stay consistent throughout September, with daily highs averaging around 25°C (77°F). Nights are pleasant, with lows typically ranging from 15°C (59°F) to 19°C (66°F).

Average temperatures in September

Daily Historical Precipitation

50-year average (1976-2025)

Average daily rainfall for each day of the month based on long-term records.

Average precipitation in September

Historical weather records for Barcelona in September

Browse day-by-day weather records for Barcelona spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.

Barcelona historical weather extremes in September

According to our 28 years of weather records for Barcelona, the following extremes were recorded between 1998 and 2026.

  • The hottest September day on record in Barcelona reached 32°C (90°F) (September 5, 2026).
  • The lowest daytime temperature in September was 18°C (64°F), recorded on September 15, 2009.
  • Nighttime temperatures dropped to 6°C (43°F) on September 26, 2002, marking the coldest September night on record.

Best Places in Spain in September

Find out more about the weather in Spain and which places have the best travel conditions in this month. See all of Spain in September →

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

What to Wear in Barcelona in September

Warm temperatures in September make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Prepare for significant rainfall with proper waterproof clothing and shoes. The water temperature sits at about 22°C (72°F), making it perfect for swimming and water activities. Don't forget to pack your favorite swimwear and perhaps some snorkel gear. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.

What To Do in Barcelona in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

  • Swimming
    9/10
  • Cycling
    7/10
  • Walking
    7/10
  • Camping
    8/10
  • Outdoor sports
    7/10

Barcelona 3-Day Forecast

More climate data for Barcelona

Popular in September

Where to go in September - average daytime high across popular destinations.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.