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September weather forecast in Costa Brava

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

	753 mmHg		70%
	3.3 m/s		+24

31 August, Sunday. day, 26°; night, 17°; rain

1 September, mon

	753 mmHg		71%
	3.1 m/s		+24

1 September, Monday. day, 26°; night, 17°; partly cloudy

2 September, tue

	753 mmHg		74%
	3.4 m/s		+24

2 September, Tuesday. day, 26°; night, 18°; overcast

3 September, wed

	753 mmHg		74%
	3.5 m/s		+24

3 September, Wednesday. day, 26°; night, 17°; partly cloudy

4 September, thu

	753 mmHg		74%
	3.3 m/s		+24

4 September, Thursday. day, 26°; night, 17°; rain

5 September, fri

	753 mmHg		72%
	3.3 m/s		+24

5 September, Friday. day, 26°; night, 17°; rain

6 September, sat

	753 mmHg		73%
	3.6 m/s		+24

6 September, Saturday. day, 26°; night, 17°; rain

7 September, sun

	752 mmHg		75%
	3.7 m/s		+24

7 September, Sunday. day, 26°; night, 17°; rain

8 September, mon

	753 mmHg		73%
	3.2 m/s		+24

8 September, Monday. day, 25°; night, 16°; rain

9 September, tue

	753 mmHg		73%
	3.5 m/s		+24

9 September, Tuesday. day, 26°; night, 16°; clear

10 September, wed

	753 mmHg		73%
	3.6 m/s		+24

10 September, Wednesday. day, 25°; night, 16°; clear

11 September, thu

	753 mmHg		73%
	3.5 m/s		+24

11 September, Thursday. day, 26°; night, 16°; clear

12 September, fri

	753 mmHg		75%
	3.4 m/s		+24

12 September, Friday. day, 25°; night, 16°; rain

13 September, sat

	753 mmHg		74%
	3.6 m/s		+24

13 September, Saturday. day, 25°; night, 16°; rain

14 September, sun

	752 mmHg		74%
	3.5 m/s		+24

14 September, Sunday. day, 24°; night, 16°; rain

15 September, mon

	752 mmHg		74%
	3.7 m/s		+23

15 September, Monday. day, 24°; night, 15°; partly cloudy

16 September, tue

	752 mmHg		75%
	3.2 m/s		+23

16 September, Tuesday. day, 25°; night, 15°; clear

17 September, wed

	751 mmHg		74%
	3.5 m/s		+23

17 September, Wednesday. day, 24°; night, 15°; rain

18 September, thu

	752 mmHg		75%
	3.3 m/s		+23

18 September, Thursday. day, 23°; night, 15°; rain

19 September, fri

	752 mmHg		75%
	3.2 m/s		+23

19 September, Friday. day, 24°; night, 15°; rain

20 September, sat

	753 mmHg		75%
	3.1 m/s		+23

20 September, Saturday. day, 23°; night, 14°; partly cloudy

21 September, sun

	753 mmHg		77%
	3.3 m/s		+23

21 September, Sunday. day, 24°; night, 15°; overcast

22 September, mon

	753 mmHg		77%
	3.4 m/s		+23

22 September, Monday. day, 23°; night, 15°; overcast

23 September, tue

	752 mmHg		77%
	3.4 m/s		+23

23 September, Tuesday. day, 23°; night, 15°; rain

24 September, wed

	752 mmHg		76%
	3.3 m/s		+23

24 September, Wednesday. day, 24°; night, 14°; partly cloudy

25 September, thu

	753 mmHg		73%
	3.5 m/s		+22

25 September, Thursday. day, 23°; night, 14°; clear

26 September, fri

	754 mmHg		72%
	3.6 m/s		+22

26 September, Friday. day, 23°; night, 13°; clear

27 September, sat

	754 mmHg		73%
	3.3 m/s		+22

27 September, Saturday. day, 23°; night, 13°; clear

28 September, sun

	754 mmHg		74%
	3.3 m/s		+22

28 September, Sunday. day, 23°; night, 14°; partly cloudy

29 September, mon

	753 mmHg		77%
	3.5 m/s		+22

29 September, Monday. day, 23°; night, 14°; clear

30 September, tue

	753 mmHg		79%
	3.5 m/s		+22

30 September, Tuesday. day, 23°; night, 14°; partly cloudy

1 October, wed

	753 mmHg		77%
	3.4 m/s		+22

1 October, Wednesday. day, 24°; night, 15°; clear

2 October, thu

	753 mmHg		78%
	3.4 m/s		+22

2 October, Thursday. day, 23°; night, 14°; clear

3 October, fri

	753 mmHg		75%
	3.7 m/s		+22

3 October, Friday. day, 23°; night, 14°; clear

4 October, sat

	753 mmHg		76%
	3.5 m/s		+22

4 October, Saturday. day, 22°; night, 13°; clear

Average data for 10 years

Costa Brava September

8

sunny days

12

days with precipitation

5

cloudy days

8 sunny days; 12 days with precipitation; 5 cloudy days;

74

%

air humidity

2

m/s

WindS

88

mm of precipitation

(12% of annual average)

+23

°C

Water temperature

air humidity 74%; 88 millimeters of precipitation (12% of annual average); Wind southerly 2 Meters per second; Water temperature +23°

Weather graphs for September

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

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S

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S

S

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S

S

S

S

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1

Average data for 10 years

2

3

4

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9

10

11

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30

Daytime temperature

Night-time temperature

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

September in Costa Brava is the rainiest and the cloudiest month of the year. In September, the weather in Costa Brava is typically warm. Average daily high temperature in September is about 24 degrees above zero. On average, Costa Brava has 12 rainy, 8 sunny, 7 partly cloudy, and 3 cloudy days in September. The rains are usually heavy. September as well as January, February, March, and April is considered the most uncomfortable time to visit Costa Brava.

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