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September weather forecast in Barcelona

30 days Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

30 days Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Sun

Sunday

Mon

Monday

Tue

Tuesday

Wed

Wednesday

Thu

Thursday

Fri

Friday

Sat

Saturday

31 August, sun

	759 mmHg		83%
	5.3 m/s		+29

31 August, Sunday. day, 28°; night, 26°; clear

1 September, mon

	759 mmHg		83%
	5.5 m/s		+29

1 September, Monday. day, 28°; night, 26°; clear

2 September, tue

	759 mmHg		83%
	5.4 m/s		+29

2 September, Tuesday. day, 28°; night, 26°; rain

3 September, wed

	759 mmHg		83%
	5.2 m/s		+29

3 September, Wednesday. day, 28°; night, 26°; overcast

4 September, thu

	759 mmHg		84%
	5.2 m/s		+29

4 September, Thursday. day, 28°; night, 26°; partly cloudy

5 September, fri

	759 mmHg		84%
	5.2 m/s		+29

5 September, Friday. day, 28°; night, 26°; rain

6 September, sat

	759 mmHg		83%
	5.6 m/s		+29

6 September, Saturday. day, 28°; night, 26°; rain

7 September, sun

	759 mmHg		82%
	5.3 m/s		+29

7 September, Sunday. day, 28°; night, 26°; clear

8 September, mon

	758 mmHg		83%
	5.5 m/s		+29

8 September, Monday. day, 28°; night, 26°; partly cloudy

9 September, tue

	759 mmHg		83%
	5.4 m/s		+29

9 September, Tuesday. day, 28°; night, 26°; clear

10 September, wed

	759 mmHg		84%
	5.4 m/s		+29

10 September, Wednesday. day, 28°; night, 26°; clear

11 September, thu

	759 mmHg		83%
	5.3 m/s		+29

11 September, Thursday. day, 28°; night, 26°; rain

12 September, fri

	759 mmHg		83%
	5.8 m/s		+29

12 September, Friday. day, 28°; night, 26°; overcast

13 September, sat

	758 mmHg		82%
	5.6 m/s		+29

13 September, Saturday. day, 28°; night, 26°; partly cloudy

14 September, sun

	759 mmHg		83%
	5.5 m/s		+29

14 September, Sunday. day, 28°; night, 26°; partly cloudy

15 September, mon

	759 mmHg		84%
	5.5 m/s		+29

15 September, Monday. day, 28°; night, 26°; partly cloudy

16 September, tue

	759 mmHg		84%
	5.5 m/s		+29

16 September, Tuesday. day, 28°; night, 26°; partly cloudy

17 September, wed

	759 mmHg		83%
	5.3 m/s		+29

17 September, Wednesday. day, 28°; night, 26°; rain

18 September, thu

	759 mmHg		83%
	5.3 m/s		+29

18 September, Thursday. day, 28°; night, 26°; rain

19 September, fri

	758 mmHg		83%
	5.2 m/s		+29

19 September, Friday. day, 28°; night, 26°; rain

20 September, sat

	758 mmHg		83%
	5.5 m/s		+29

20 September, Saturday. day, 28°; night, 26°; overcast

21 September, sun

	758 mmHg		83%
	5.6 m/s		+29

21 September, Sunday. day, 28°; night, 26°; overcast

22 September, mon

	758 mmHg		83%
	5.5 m/s		+29

22 September, Monday. day, 28°; night, 26°; rain

23 September, tue

	758 mmHg		83%
	5.7 m/s		+29

23 September, Tuesday. day, 28°; night, 27°; partly cloudy

24 September, wed

	758 mmHg		83%
	5.5 m/s		+29

24 September, Wednesday. day, 28°; night, 26°; overcast

25 September, thu

	759 mmHg		83%
	5.6 m/s		+29

25 September, Thursday. day, 28°; night, 26°; rain

26 September, fri

	758 mmHg		83%
	5.7 m/s		+29

26 September, Friday. day, 28°; night, 26°; rain

27 September, sat

	758 mmHg		83%
	5.9 m/s		+29

27 September, Saturday. day, 28°; night, 26°; clear

28 September, sun

	758 mmHg		83%
	5.8 m/s		+29

28 September, Sunday. day, 28°; night, 26°; clear

29 September, mon

	758 mmHg		83%
	5.5 m/s		+29

29 September, Monday. day, 28°; night, 26°; overcast

30 September, tue

	758 mmHg		83%
	5.6 m/s		+29

30 September, Tuesday. day, 28°; night, 27°; overcast

1 October, wed

	758 mmHg		84%
	5.6 m/s		+29

1 October, Wednesday. day, 28°; night, 26°; overcast

2 October, thu

	758 mmHg		83%
	5.5 m/s		+29

2 October, Thursday. day, 28°; night, 27°; overcast

3 October, fri

	758 mmHg		83%
	5.8 m/s		+29

3 October, Friday. day, 28°; night, 26°; partly cloudy

4 October, sat

	758 mmHg		83%
	5.7 m/s		+29

4 October, Saturday. day, 28°; night, 27°; overcast

Average data for 10 years

Barcelona September

6

sunny days

10

days with precipitation

9

cloudy days

6 sunny days; 10 days with precipitation; 9 cloudy days;

83

%

air humidity

3.1

m/s

WindSE

46

mm of precipitation

(12% of annual average)

+29

°C

Water temperature

air humidity 83%; 46 millimeters of precipitation (12% of annual average); Wind south-easterly 3.1 Meters per second; Water temperature +29°

Weather graphs for September

TemperatureWater temperaturePrecipitation chance, %Humidity, %Wind, m/sPressure, mmHg

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Average data for 10 years

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Daytime temperature

Night-time temperature

Cities near you

Caracas
Porlamar
Valle de la Pascua
Saint George's
Port of Spain
La Asunción
Maracay
Puerto Cabello
Valencia

Cities with similar weather in September

Santo Domingo
Varadero
Phan Thiet
Havana
Krabi
Ko Chang
Mumbai
Puerto Plata
Panaji

The weather forecast for September 2025 is based on historical data from the past 10 years.

September in Barcelona is the hottest month of the year. In September, the weather in Barcelona is typically hot. Average daily high temperature in September is about 28 degrees above zero. On average, Barcelona has 10 rainy, 7 cloudy, 7 partly cloudy, and 6 sunny days in September. The rains are usually light.

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