Weather in Barcelona for September 2025
In general, the average temperature in Barcelona at the beginning of September is 26.1 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 24.7 °C by the end of September.
Barcelona sees moderate rainfall in September, averaging 9 rainy days.
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Barcelona in September average weather
| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  27° | 2  26° | 3 26° | 4  26° | 5 25° | 6 26° | 7 27° |
| 8 25° | 9 25° | 10 25° | 11  25° | 12  25° | 13 22° | 14 25° |
| 15  25° | 16 26° | 17 26° | 18 24° | 19 23° | 20 22° | 21 24° |
| 22 24° | 23 23° | 24 24° | 25 24° | 26 26° | 27 26° | 28 23° |
| 29 24° | 30 26° |
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Temperatures trend during September in Barcelona
September weather day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. | Cloudy | 27° /22° | 0.4 mm | 6 | |
| 2 Sept. | Partly cloudy | 26° /22° | 1.5 mm | 7 | |
| 3 Sept. | Partly cloudy | 26° /20° | 13.9 mm | 7 | |
| 4 Sept. | Sunny | 26° /22° | 14.3 mm | 6 | |
| 5 Sept. | Sunny | 25° /21° | 0.2 mm | 6 | |
| 6 Sept. | Sunny | 26° /21° | 1.1 mm | 7 | |
| 7 Sept. | Sunny | 27° /22° | 1.1 mm | 7 | |
| 8 Sept. | Sunny | 25° /22° | 2.8 mm | 7 | |
| 9 Sept. | Sunny | 25° /21° | 0.3 mm | 6 | |
| 10 Sept. | Sunny | 25° /21° | 0.2 mm | 6 | |
| 11 Sept. | Patchy rain possible | 25° /21° | 1.5 mm | 6 | |
| 12 Sept. | Thundery outbreaks possible | 25° /19° | 1.9 mm | 6 | |
| 13 Sept. | Sunny | 22° /19° | 4.7 mm | 6 | |
| 14 Sept. | Sunny | 25° /19° | 0 mm | 6 | |
| 15 Sept. | Moderate or heavy rain shower | 25° /20° | 9 mm | 6 | |
| 16 Sept. | Partly cloudy | 26° /19° | 2 mm | 7 | |
| 17 Sept. | Patchy rain possible | 26° /21° | 0.3 mm | 6 | |
| 18 Sept. | Patchy rain possible | 24° /18° | 5 mm | 6 | |
| 19 Sept. | Patchy rain possible | 23° /20° | 0.7 mm | 5 | |
| 20 Sept. | Patchy rain possible | 22° /19° | 4.3 mm | 5 | |
| 21 Sept. | Sunny | 24° /18° | 0.1 mm | 6 | |
| 22 Sept. | Patchy rain possible | 24° /20° | 3.3 mm | 5 | |
| 23 Sept. | Patchy rain possible | 23° /18° | 3 mm | 5 | |
| 24 Sept. | Cloudy | 24° /19° | 3 mm | 5 | |
| 25 Sept. | Sunny | 24° /19° | 0 mm | 6 | |
| 26 Sept. | Sunny | 26° /20° | 0 mm | 7 | |
| 27 Sept. | Sunny | 26° /20° | 0.1 mm | 7 | |
| 28 Sept. | Sunny | 23° /19° | 1 mm | 6 | |
| 29 Sept. | Sunny | 24° /19° | 0.6 mm | 6 | |
| 30 Sept. | Sunny | 26° /21° | 0 mm | 6 | |
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Guide for Barcelona in September
In September, Barcelona, Spain experiences a transition from the warm summer weather to the pleasant early autumn conditions. At the beginning of the month, the average temperature in Barcelona is around 25°, with plenty of sunshine and minimal rainfall.
The city is still bustling with tourists enjoying the last days of summer, and the beaches and outdoor cafes remain popular.
As the month progresses, the temperature gradually begins to decrease, with average highs of around 23° and cooler evenings. The sea temperature also starts to cool down, making swimming less popular towards the end of the month.
However, the weather remains generally dry and sunny, making it an ideal time to explore the city's attractions and outdoor spaces without the intense heat of summer.
Overall, September in Barcelona offers a delightful blend of warm days and comfortable evenings, perfect for sightseeing, outdoor activities, and al fresco dining.
Visitors can expect pleasant weather for most of the month, although it's always a good idea to pack a light jacket or sweater for the cooler evenings.
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Barcelona in September - FAQ
What to pack to Barcelona in September?
As you prepare for your trip to Barcelona in September, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Barcelona, during September, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Layered Clothing: Light sweaters, long-sleeve shirts, light jackets, and comfortable pants
- Rain Gear: Lightweight, waterproof clothing
- Footwear
- Waterproof Shoes
- Accessories
- Sunglasses: For sun protection
- Sun Hats: Wide-brimmed hats for sun protection in warm weather
- Umbrellas/Raincoats: For rainy days
September rainfall patterns in Barcelona
UV exposure in Barcelona during September
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