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September weather forecast in St. John's

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

1 September, sun

	761 mmHg		75%
	6.6 m/s		+29

1 September, Sunday. day, 29°; night, 28°; rain

2 September, mon

	761 mmHg		76%
	6.8 m/s		+29

2 September, Monday. day, 28°; night, 28°; rain

3 September, tue

	761 mmHg		75%
	6.8 m/s		+29

3 September, Tuesday. day, 29°; night, 28°; rain

4 September, wed

	761 mmHg		75%
	7.5 m/s		+29

4 September, Wednesday. day, 29°; night, 28°; rain

5 September, thu

	761 mmHg		75%
	10.1 m/s		+29

5 September, Thursday. day, 29°; night, 28°; partly cloudy

6 September, fri

	762 mmHg		75%
	7.3 m/s		+29

6 September, Friday. day, 29°; night, 28°; rain

7 September, sat

	761 mmHg		74%
	6.6 m/s		+29

7 September, Saturday. day, 28°; night, 28°; rain

8 September, sun

	761 mmHg		74%
	7.1 m/s		+29

8 September, Sunday. day, 29°; night, 28°; rain

9 September, mon

	761 mmHg		75%
	7.5 m/s		+29

9 September, Monday. day, 29°; night, 28°; clear

10 September, tue

	762 mmHg		75%
	7.6 m/s		+29

10 September, Tuesday. day, 29°; night, 28°; clear

11 September, wed

	761 mmHg		75%
	7.5 m/s		+29

11 September, Wednesday. day, 29°; night, 28°; rain

12 September, thu

	761 mmHg		75%
	6.1 m/s		+29

12 September, Thursday. day, 29°; night, 28°; rain

13 September, fri

	761 mmHg		75%
	5.9 m/s		+29

13 September, Friday. day, 29°; night, 28°; clear

14 September, sat

	762 mmHg		75%
	6.9 m/s		+29

14 September, Saturday. day, 29°; night, 28°; rain

15 September, sun

	761 mmHg		75%
	6.6 m/s		+29

15 September, Sunday. day, 29°; night, 28°; clear

16 September, mon

	760 mmHg		75%
	5.8 m/s		+29

16 September, Monday. day, 28°; night, 28°; clear

17 September, tue

	760 mmHg		75%
	6.9 m/s		+29

17 September, Tuesday. day, 28°; night, 28°; rain

18 September, wed

	760 mmHg		75%
	8.3 m/s		+29

18 September, Wednesday. day, 28°; night, 28°; clear

19 September, thu

	761 mmHg		75%
	6.6 m/s		+29

19 September, Thursday. day, 29°; night, 28°; rain

20 September, fri

	761 mmHg		75%
	5.8 m/s		+29

20 September, Friday. day, 28°; night, 28°; clear

21 September, sat

	761 mmHg		75%
	6.5 m/s		+29

21 September, Saturday. day, 29°; night, 28°; clear

22 September, sun

	761 mmHg		74%
	6.5 m/s		+29

22 September, Sunday. day, 29°; night, 28°; rain

23 September, mon

	761 mmHg		75%
	6.8 m/s		+29

23 September, Monday. day, 28°; night, 28°; rain

24 September, tue

	761 mmHg		74%
	5.6 m/s		+29

24 September, Tuesday. day, 29°; night, 28°; clear

25 September, wed

	761 mmHg		75%
	5 m/s		+29

25 September, Wednesday. day, 28°; night, 28°; clear

26 September, thu

	761 mmHg		75%
	6 m/s		+29

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

27 September, fri

	761 mmHg		74%
	6.4 m/s		+29

27 September, Friday. day, 29°; night, 28°; rain

28 September, sat

	761 mmHg		75%
	6.9 m/s		+29

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

29 September, sun

	761 mmHg		74%
	6.5 m/s		+29

29 September, Sunday. day, 29°; night, 28°; partly cloudy

30 September, mon

	761 mmHg		74%
	6.4 m/s		+29

30 September, Monday. day, 29°; night, 28°; rain

1 October, tue

	760 mmHg		74%
	6.9 m/s		+29

1 October, Tuesday. day, 29°; night, 28°; clear

2 October, wed

	761 mmHg		73%
	7.3 m/s		+29

2 October, Wednesday. day, 29°; night, 28°; clear

3 October, thu

	761 mmHg		75%
	7.1 m/s		+29

3 October, Thursday. day, 28°; night, 28°; rain

4 October, fri

	761 mmHg		75%
	6.9 m/s		+29

4 October, Friday. day, 29°; night, 28°; clear

5 October, sat

	761 mmHg		75%
	6.5 m/s		+29

5 October, Saturday. day, 28°; night, 28°; rain

Average data for 10 years

St. John's September

11

sunny days

17

days with precipitation

2

cloudy days

11 sunny days; 17 days with precipitation; 2 cloudy days;

75

%

air humidity

5.5

m/s

WindE

116

mm of precipitation

(14% of annual average)

+29

°C

Water temperature

air humidity 75%; 116 millimeters of precipitation (14% of annual average); Wind easterly 5.5 Meters per second; Water temperature +29°

Weather graphs for September

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

E

E

E

E

SE

E

E

E

E

E

E

E

E

E

E

E

E

E

E

E

E

E

E

E

E

E

E

E

E

E

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

Plymouth
The Valley
Antigua
Basseterre
Christiansted
Cyril E. King Airport
Road Town
Fort-de-France
Charlotte Amalie

Cities with similar weather in September

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

The weather forecast for September 2024 is based on historical data from the past 10 years.

September in St. John's is the hottest month of the year. In September, the weather in St. John's is typically hot. Average daily high temperature in September is about 29 degrees above zero. On average, St. John's has 17 rainy, 11 sunny, and 2 partly cloudy days in September. The rains are usually heavy. September as well as August, October, and November is considered the most uncomfortable time to visit St. John's.

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