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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

	762 mmHg		88%
	6.4 m/s		+14

31 August, Sunday. day, 17°; night, 14°; rain

1 September, mon

	762 mmHg		86%
	6.1 m/s		+14

1 September, Monday. day, 17°; night, 14°; clear

2 September, tue

	763 mmHg		86%
	6.3 m/s		+13

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

3 September, wed

	762 mmHg		87%
	6.2 m/s		+13

3 September, Wednesday. day, 16°; night, 14°; clear

4 September, thu

	761 mmHg		88%
	6.6 m/s		+13

4 September, Thursday. day, 16°; night, 14°; clear

5 September, fri

	763 mmHg		86%
	6.3 m/s		+13

5 September, Friday. day, 16°; night, 14°; clear

6 September, sat

	764 mmHg		86%
	6.2 m/s		+13

6 September, Saturday. day, 16°; night, 13°; clear

7 September, sun

	763 mmHg		88%
	6.8 m/s		+13

7 September, Sunday. day, 16°; night, 14°; overcast

8 September, mon

	762 mmHg		89%
	6.2 m/s		+14

8 September, Monday. day, 16°; night, 14°; overcast

9 September, tue

	763 mmHg		89%
	6.2 m/s		+14

9 September, Tuesday. day, 16°; night, 14°; overcast

10 September, wed

	763 mmHg		88%
	6.1 m/s		+14

10 September, Wednesday. day, 16°; night, 14°; rain

11 September, thu

	763 mmHg		86%
	6.6 m/s		+14

11 September, Thursday. day, 16°; night, 13°; overcast

12 September, fri

	763 mmHg		85%
	6.7 m/s		+13

12 September, Friday. day, 16°; night, 13°; clear

13 September, sat

	763 mmHg		87%
	6 m/s		+13

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

14 September, sun

	763 mmHg		89%
	6.3 m/s		+14

14 September, Sunday. day, 16°; night, 13°; partly cloudy

15 September, mon

	763 mmHg		87%
	6.8 m/s		+13

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

16 September, tue

	763 mmHg		86%
	6.7 m/s		+13

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

17 September, wed

	764 mmHg		85%
	6.5 m/s		+13

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

18 September, thu

	763 mmHg		87%
	6.8 m/s		+13

18 September, Thursday. day, 15°; night, 13°; overcast

19 September, fri

	764 mmHg		84%
	6.5 m/s		+13

19 September, Friday. day, 15°; night, 12°; partly cloudy

20 September, sat

	764 mmHg		85%
	6.7 m/s		+13

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

21 September, sun

	764 mmHg		85%
	6.6 m/s		+13

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

22 September, mon

	763 mmHg		86%
	7.1 m/s		+13

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

23 September, tue

	762 mmHg		86%
	7.4 m/s		+13

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

24 September, wed

	763 mmHg		81%
	7 m/s		+13

24 September, Wednesday. day, 14°; night, 12°; clear

25 September, thu

	764 mmHg		82%
	6.7 m/s		+13

25 September, Thursday. day, 14°; night, 12°; partly cloudy

26 September, fri

	764 mmHg		85%
	6.8 m/s		+13

26 September, Friday. day, 15°; night, 12°; overcast

27 September, sat

	763 mmHg		86%
	6.9 m/s		+13

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

28 September, sun

	763 mmHg		87%
	7 m/s		+13

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

29 September, mon

	763 mmHg		85%
	7.9 m/s		+13

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

30 September, tue

	764 mmHg		82%
	7.3 m/s		+13

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

1 October, wed

	763 mmHg		83%
	6.4 m/s		+13

1 October, Wednesday. day, 14°; night, 12°; partly cloudy

2 October, thu

	762 mmHg		84%
	6.9 m/s		+13

2 October, Thursday. day, 14°; night, 12°; partly cloudy

3 October, fri

	764 mmHg		81%
	6.8 m/s		+13

3 October, Friday. day, 14°; night, 12°; clear

4 October, sat

	765 mmHg		82%
	6.5 m/s		+13

4 October, Saturday. day, 14°; night, 11°; clear

Average data for 10 years

Yarmouth September

10

sunny days

9

days with precipitation

9

cloudy days

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

86

%

air humidity

4.8

m/s

WindSW

108

mm of precipitation

(8% of annual average)

+13

°C

Water temperature

air humidity 86%; 108 millimeters of precipitation (8% of annual average); Wind south-westerly 4.8 Meters per second; Water temperature +13°

Weather graphs for September

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

SW

S

SW

SW

SW

SW

S

SW

S

SW

SW

SW

S

S

SW

SW

SW

S

S

S

S

S

SW

SW

S

S

SW

S

SW

S

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
Augusta
Fredericton
Moncton
Bridgewater
Presque Isle
Enfield
Liverpool

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.

In September, the weather in Yarmouth is typically warm. Average daily high temperature in September is about 15 degrees above zero. On average, Yarmouth has 10 sunny, 9 rainy, 6 cloudy, and 5 partly cloudy days in September. The rains are usually heavy.

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