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September weather forecast in Clifden

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

	763 mmHg		80%
	8.3 m/s		+16

31 August, Sunday. day, 15°; night, 13°; overcast

1 September, mon

	763 mmHg		83%
	8.39 m/s		+15

1 September, Monday. day, 15°; night, 13°; rain

2 September, tue

	762 mmHg		83%
	8.39 m/s		+15

2 September, Tuesday. day, 15°; night, 13°; overcast

3 September, wed

	762 mmHg		83%
	8.5 m/s		+15

3 September, Wednesday. day, 15°; night, 13°; rain

4 September, thu

	762 mmHg		84%
	8.6 m/s		+15

4 September, Thursday. day, 15°; night, 13°; rain

5 September, fri

	762 mmHg		84%
	9 m/s		+15

5 September, Friday. day, 15°; night, 13°; rain

6 September, sat

	761 mmHg		83%
	9 m/s		+15

6 September, Saturday. day, 15°; night, 13°; overcast

7 September, sun

	761 mmHg		83%
	8.89 m/s		+15

7 September, Sunday. day, 15°; night, 13°; partly cloudy

8 September, mon

	760 mmHg		83%
	8.89 m/s		+15

8 September, Monday. day, 15°; night, 13°; partly cloudy

9 September, tue

	761 mmHg		82%
	9.2 m/s		+15

9 September, Tuesday. day, 15°; night, 13°; rain

10 September, wed

	760 mmHg		84%
	9.6 m/s		+15

10 September, Wednesday. day, 15°; night, 13°; rain

11 September, thu

	760 mmHg		82%
	9.89 m/s		+15

11 September, Thursday. day, 15°; night, 13°; rain

12 September, fri

	761 mmHg		78%
	10 m/s		+15

12 September, Friday. day, 14°; night, 12°; partly cloudy

13 September, sat

	761 mmHg		81%
	10.1 m/s		+15

13 September, Saturday. day, 15°; night, 13°; rain

14 September, sun

	762 mmHg		81%
	9.1 m/s		+15

14 September, Sunday. day, 15°; night, 13°; rain

15 September, mon

	762 mmHg		82%
	9 m/s		+15

15 September, Monday. day, 15°; night, 13°; overcast

16 September, tue

	762 mmHg		80%
	9 m/s		+15

16 September, Tuesday. day, 15°; night, 12°; partly cloudy

17 September, wed

	761 mmHg		80%
	8.5 m/s		+15

17 September, Wednesday. day, 15°; night, 12°; clear

18 September, thu

	761 mmHg		79%
	9 m/s		+15

18 September, Thursday. day, 14°; night, 12°; clear

19 September, fri

	761 mmHg		82%
	9.6 m/s		+15

19 September, Friday. day, 15°; night, 13°; clear

20 September, sat

	761 mmHg		81%
	9 m/s		+15

20 September, Saturday. day, 15°; night, 12°; partly cloudy

21 September, sun

	760 mmHg		82%
	9.5 m/s		+15

21 September, Sunday. day, 15°; night, 13°; rain

22 September, mon

	761 mmHg		81%
	8.89 m/s		+15

22 September, Monday. day, 15°; night, 12°; rain

23 September, tue

	760 mmHg		80%
	10 m/s		+15

23 September, Tuesday. day, 14°; night, 12°; rain

24 September, wed

	759 mmHg		79%
	9.3 m/s		+15

24 September, Wednesday. day, 14°; night, 12°; partly cloudy

25 September, thu

	760 mmHg		82%
	9.39 m/s		+15

25 September, Thursday. day, 14°; night, 12°; rain

26 September, fri

	760 mmHg		81%
	9.7 m/s		+14

26 September, Friday. day, 14°; night, 12°; rain

27 September, sat

	760 mmHg		81%
	9.8 m/s		+14

27 September, Saturday. day, 14°; night, 12°; rain

28 September, sun

	759 mmHg		80%
	10.3 m/s		+14

28 September, Sunday. day, 14°; night, 12°; rain

29 September, mon

	758 mmHg		81%
	10.1 m/s		+15

29 September, Monday. day, 14°; night, 12°; rain

30 September, tue

	756 mmHg		84%
	10.3 m/s		+14

30 September, Tuesday. day, 14°; night, 12°; rain

1 October, wed

	757 mmHg		81%
	10.8 m/s		+14

1 October, Wednesday. day, 13°; night, 11°; rain

2 October, thu

	758 mmHg		81%
	10.4 m/s		+14

2 October, Thursday. day, 13°; night, 11°; rain

3 October, fri

	758 mmHg		80%
	10.9 m/s		+14

3 October, Friday. day, 13°; night, 11°; rain

4 October, sat

	758 mmHg		80%
	11.5 m/s		+14

4 October, Saturday. day, 13°; night, 11°; rain

Average data for 10 years

Clifden September

3

sunny days

18

days with precipitation

13

cloudy days

3 sunny days; 18 days with precipitation; 13 cloudy days;

82

%

air humidity

7

m/s

WindSW

126

mm of precipitation

(9% of annual average)

+15

°C

Water temperature

air humidity 82%; 126 millimeters of precipitation (9% of annual average); Wind south-westerly 7 Meters per second; Water temperature +15°

Weather graphs for September

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

SW

SW

SW

SW

S

S

S

S

SW

SW

SW

SW

SW

SW

SW

S

S

S

S

S

S

S

S

S

S

S

SW

SW

SW

SW

1

Average data for 10 years

2

3

4

5

6

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9

10

11

12

13

14

15

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18

19

20

21

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29

30

Daytime temperature

Night-time temperature

Cities near you

Dublin
Carrickfinn
Cork
Galway
Ballyvaughan
Cavan
Tralee
Portlaoise
Ennis

Cities with similar weather in September

Helsinki
Riga
Tallinn
Stockholm
Oslo
Yurmala
Palanga
Buenos Aires
Copenhagen

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

In September, the weather in Clifden is typically warm. Average daily high temperature in September is about 15 degrees above zero. On average, Clifden has 18 rainy, 6 partly cloudy, 3 sunny, 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 Clifden.

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