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September weather forecast in St Catharines

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		64%
	5.4 m/s		+22

31 August, Sunday. day, 25°; night, 21°; clear

1 September, mon

	752 mmHg		64%
	5.3 m/s		+22

1 September, Monday. day, 24°; night, 21°; rain

2 September, tue

	751 mmHg		62%
	4.9 m/s		+22

2 September, Tuesday. day, 24°; night, 20°; clear

3 September, wed

	751 mmHg		62%
	7 m/s		+22

3 September, Wednesday. day, 24°; night, 21°; clear

4 September, thu

	753 mmHg		66%
	5.9 m/s		+22

4 September, Thursday. day, 22°; night, 19°; partly cloudy

5 September, fri

	754 mmHg		63%
	5.3 m/s		+21

5 September, Friday. day, 23°; night, 19°; partly cloudy

6 September, sat

	752 mmHg		68%
	6.9 m/s		+21

6 September, Saturday. day, 23°; night, 19°; clear

7 September, sun

	753 mmHg		69%
	5.6 m/s		+20

7 September, Sunday. day, 22°; night, 19°; rain

8 September, mon

	752 mmHg		68%
	6 m/s		+21

8 September, Monday. day, 21°; night, 19°; clear

9 September, tue

	753 mmHg		62%
	6.5 m/s		+20

9 September, Tuesday. day, 22°; night, 19°; partly cloudy

10 September, wed

	753 mmHg		62%
	6.5 m/s		+20

10 September, Wednesday. day, 21°; night, 19°; clear

11 September, thu

	753 mmHg		64%
	6.4 m/s		+20

11 September, Thursday. day, 20°; night, 17°; clear

12 September, fri

	752 mmHg		66%
	6 m/s		+20

12 September, Friday. day, 20°; night, 17°; partly cloudy

13 September, sat

	753 mmHg		63%
	6 m/s		+20

13 September, Saturday. day, 21°; night, 16°; rain

14 September, sun

	754 mmHg		63%
	6.3 m/s		+20

14 September, Sunday. day, 20°; night, 18°; partly cloudy

15 September, mon

	756 mmHg		67%
	6 m/s		+19

15 September, Monday. day, 18°; night, 16°; rain

16 September, tue

	756 mmHg		61%
	5 m/s		+19

16 September, Tuesday. day, 19°; night, 15°; clear

17 September, wed

	754 mmHg		62%
	6.1 m/s		+19

17 September, Wednesday. day, 21°; night, 17°; partly cloudy

18 September, thu

	754 mmHg		68%
	6.4 m/s		+19

18 September, Thursday. day, 20°; night, 17°; rain

19 September, fri

	755 mmHg		62%
	5.8 m/s		+19

19 September, Friday. day, 20°; night, 16°; clear

20 September, sat

	752 mmHg		67%
	6.3 m/s		+19

20 September, Saturday. day, 22°; night, 18°; rain

21 September, sun

	755 mmHg		68%
	5.5 m/s		+19

21 September, Sunday. day, 20°; night, 18°; clear

22 September, mon

	755 mmHg		66%
	5.5 m/s		+19

22 September, Monday. day, 21°; night, 16°; partly cloudy

23 September, tue

	756 mmHg		63%
	6 m/s		+19

23 September, Tuesday. day, 21°; night, 18°; clear

24 September, wed

	757 mmHg		61%
	6 m/s		+18

24 September, Wednesday. day, 20°; night, 17°; partly cloudy

25 September, thu

	755 mmHg		62%
	5.1 m/s		+19

25 September, Thursday. day, 21°; night, 16°; clear

26 September, fri

	753 mmHg		72%
	5.8 m/s		+18

26 September, Friday. day, 20°; night, 17°; rain

27 September, sat

	750 mmHg		70%
	6.6 m/s		+18

27 September, Saturday. day, 19°; night, 17°; partly cloudy

28 September, sun

	750 mmHg		72%
	7.6 m/s		+18

28 September, Sunday. day, 19°; night, 17°; clear

29 September, mon

	752 mmHg		74%
	6.5 m/s		+17

29 September, Monday. day, 16°; night, 15°; overcast

30 September, tue

	754 mmHg		69%
	7.1 m/s		+17

30 September, Tuesday. day, 16°; night, 14°; partly cloudy

1 October, wed

	753 mmHg		70%
	7.1 m/s		+17

1 October, Wednesday. day, 16°; night, 13°; rain

2 October, thu

	753 mmHg		72%
	6.5 m/s		+16

2 October, Thursday. day, 17°; night, 14°; rain

3 October, fri

	753 mmHg		79%
	6.8 m/s		+16

3 October, Friday. day, 16°; night, 14°; rain

4 October, sat

	755 mmHg		73%
	6.3 m/s		+16

4 October, Saturday. day, 16°; night, 13°; rain

Average data for 10 years

St Catharines September

12

sunny days

7

days with precipitation

11

cloudy days

12 sunny days; 7 days with precipitation; 11 cloudy days;

66

%

air humidity

4.3

m/s

WindW

65

mm of precipitation

(8% of annual average)

+20

°C

Water temperature

air humidity 66%; 65 millimeters of precipitation (8% of annual average); Wind westerly 4.3 Meters per second; Water temperature +20°

Weather graphs for September

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

SW

W

SW

NW

SW

SW

NW

W

NE

W

NW

W

W

W

N

E

SW

S

S

S

W

SW

NW

NE

SE

SE

W

W

NE

NE

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

Toronto
Detroit
Buffalo
Macedonia
Pittsburgh
Cleveland
London
Altoona
Scranton

Cities with similar weather in September

Burgas
Varna
Podgorica
The Golden Sands
Chicago
Genoa
Boston
Seattle
Dubrovnik

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

In September, the weather in St Catharines is typically warm. Average daily high temperature in September is about 21 degrees above zero. On average, St Catharines has 12 sunny, 10 partly cloudy, 7 rainy, and 1 cloudy day in September. The rains are usually moderate. September as well as {{month_nom: February}}, and {{month_nom: February}} is considered the most comfortable time to visit St Catharines.

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