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September weather forecast in Yarmouth

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		75%
	6.8 m/s		+14

31 August, Sunday. day, 19°; night, 16°; partly cloudy

1 September, mon

	760 mmHg		79%
	5.8 m/s		+14

1 September, Monday. day, 19°; night, 15°; partly cloudy

2 September, tue

	759 mmHg		81%
	6.1 m/s		+13

2 September, Tuesday. day, 18°; night, 15°; partly cloudy

3 September, wed

	758 mmHg		77%
	6.4 m/s		+13

3 September, Wednesday. day, 18°; night, 16°; partly cloudy

4 September, thu

	761 mmHg		77%
	6.1 m/s		+13

4 September, Thursday. day, 18°; night, 15°; partly cloudy

5 September, fri

	762 mmHg		80%
	7 m/s		+13

5 September, Friday. day, 18°; night, 15°; rain

6 September, sat

	761 mmHg		83%
	6.3 m/s		+13

6 September, Saturday. day, 18°; night, 15°; clear

7 September, sun

	759 mmHg		81%
	5.9 m/s		+13

7 September, Sunday. day, 19°; night, 16°; partly cloudy

8 September, mon

	760 mmHg		76%
	6 m/s		+14

8 September, Monday. day, 18°; night, 15°; rain

9 September, tue

	760 mmHg		81%
	6.5 m/s		+14

9 September, Tuesday. day, 17°; night, 15°; clear

10 September, wed

	760 mmHg		80%
	6.3 m/s		+14

10 September, Wednesday. day, 18°; night, 14°; partly cloudy

11 September, thu

	760 mmHg		79%
	6.8 m/s		+14

11 September, Thursday. day, 17°; night, 15°; clear

12 September, fri

	760 mmHg		81%
	5.5 m/s		+13

12 September, Friday. day, 17°; night, 14°; partly cloudy

13 September, sat

	759 mmHg		83%
	5.8 m/s		+13

13 September, Saturday. day, 17°; night, 15°; clear

14 September, sun

	760 mmHg		81%
	5.9 m/s		+14

14 September, Sunday. day, 17°; night, 15°; partly cloudy

15 September, mon

	761 mmHg		75%
	6.9 m/s		+13

15 September, Monday. day, 16°; night, 14°; clear

16 September, tue

	763 mmHg		75%
	6 m/s		+13

16 September, Tuesday. day, 15°; night, 13°; partly cloudy

17 September, wed

	763 mmHg		75%
	4.9 m/s		+13

17 September, Wednesday. day, 17°; night, 13°; partly cloudy

18 September, thu

	763 mmHg		75%
	6.8 m/s		+13

18 September, Thursday. day, 16°; night, 13°; partly cloudy

19 September, fri

	762 mmHg		77%
	7 m/s		+13

19 September, Friday. day, 17°; night, 14°; rain

20 September, sat

	763 mmHg		75%
	5.9 m/s		+13

20 September, Saturday. day, 18°; night, 14°; clear

21 September, sun

	761 mmHg		83%
	6.6 m/s		+13

21 September, Sunday. day, 17°; night, 14°; overcast

22 September, mon

	763 mmHg		79%
	5.6 m/s		+13

22 September, Monday. day, 17°; night, 15°; clear

23 September, tue

	763 mmHg		77%
	5.9 m/s		+13

23 September, Tuesday. day, 16°; night, 14°; rain

24 September, wed

	762 mmHg		75%
	6 m/s		+13

24 September, Wednesday. day, 15°; night, 13°; partly cloudy

25 September, thu

	764 mmHg		74%
	5.6 m/s		+13

25 September, Thursday. day, 15°; night, 13°; clear

26 September, fri

	764 mmHg		77%
	6.4 m/s		+13

26 September, Friday. day, 17°; night, 13°; clear

27 September, sat

	761 mmHg		82%
	7.5 m/s		+13

27 September, Saturday. day, 17°; night, 14°; rain

28 September, sun

	760 mmHg		81%
	7.3 m/s		+13

28 September, Sunday. day, 16°; night, 14°; clear

29 September, mon

	760 mmHg		81%
	8.3 m/s		+13

29 September, Monday. day, 17°; night, 14°; rain

30 September, tue

	759 mmHg		82%
	6 m/s		+13

30 September, Tuesday. day, 16°; night, 14°; clear

1 October, wed

	760 mmHg		79%
	7 m/s		+13

1 October, Wednesday. day, 15°; night, 13°; partly cloudy

2 October, thu

	762 mmHg		76%
	6.4 m/s		+13

2 October, Thursday. day, 15°; night, 12°; partly cloudy

3 October, fri

	761 mmHg		80%
	6.8 m/s		+13

3 October, Friday. day, 16°; night, 12°; rain

4 October, sat

	760 mmHg		79%
	6.3 m/s		+13

4 October, Saturday. day, 15°; night, 12°; clear

Average data for 10 years

Yarmouth September

11

sunny days

6

days with precipitation

13

cloudy days

11 sunny days; 6 days with precipitation; 13 cloudy days;

79

%

air humidity

4.6

m/s

WindSW

69

mm of precipitation

(6% of annual average)

+13

°C

Water temperature

air humidity 79%; 69 millimeters of precipitation (6% of annual average); Wind south-westerly 4.6 Meters per second; Water temperature +13°

Weather graphs for September

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

W

S

W

SW

SW

SW

W

SW

SW

NW

W

SW

SW

W

W

W

SW

NW

SW

N

SW

W

W

NW

NW

S

S

S

S

SE

1

Average data for 10 years

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

Daytime temperature

Night-time temperature

Cities near you

Saint John
Halifax
Bangor
Liverpool
New Glasgow
Augusta
Bridgewater
Charlottetown
Woodstock

Cities with similar weather in September

Palanga
Copenhagen
Capetown
Gdansk
Looe
Klaipeda
Bruges
Perth
Liverpool

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

September in Yarmouth is the sunniest month of the year. In September, the weather in Yarmouth is typically warm. Average daily high temperature in September is about 17 degrees above zero. On average, Yarmouth has 12 partly cloudy, 11 sunny, 6 rainy, and 1 cloudy day in September. The rains are usually heavy.

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