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September weather forecast in Sarnia

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

	745 mmHg		66%
	4.8 m/s		+21

1 September, Sunday. day, 24°; night, 20°; rain

2 September, mon

	745 mmHg		61%
	5.1 m/s		+22

2 September, Monday. day, 25°; night, 19°; clear

3 September, tue

	744 mmHg		66%
	6.5 m/s		+22

3 September, Tuesday. day, 24°; night, 19°; rain

4 September, wed

	746 mmHg		68%
	5.8 m/s		+21

4 September, Wednesday. day, 22°; night, 18°; partly cloudy

5 September, thu

	746 mmHg		64%
	5.1 m/s		+21

5 September, Thursday. day, 23°; night, 18°; rain

6 September, fri

	745 mmHg		63%
	5.6 m/s		+21

6 September, Friday. day, 23°; night, 18°; rain

7 September, sat

	745 mmHg		68%
	6 m/s		+21

7 September, Saturday. day, 22°; night, 19°; partly cloudy

8 September, sun

	745 mmHg		68%
	5.5 m/s		+20

8 September, Sunday. day, 22°; night, 18°; clear

9 September, mon

	746 mmHg		63%
	5.4 m/s		+21

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

10 September, tue

	746 mmHg		67%
	5.3 m/s		+20

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

11 September, wed

	746 mmHg		62%
	5.5 m/s		+20

11 September, Wednesday. day, 21°; night, 16°; clear

12 September, thu

	745 mmHg		67%
	6 m/s		+20

12 September, Thursday. day, 20°; night, 16°; clear

13 September, fri

	746 mmHg		66%
	4.6 m/s		+20

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

14 September, sat

	747 mmHg		64%
	6.8 m/s		+19

14 September, Saturday. day, 20°; night, 16°; clear

15 September, sun

	749 mmHg		68%
	6 m/s		+19

15 September, Sunday. day, 19°; night, 15°; clear

16 September, mon

	749 mmHg		60%
	5.1 m/s		+19

16 September, Monday. day, 20°; night, 14°; clear

17 September, tue

	747 mmHg		72%
	6.5 m/s		+19

17 September, Tuesday. day, 20°; night, 16°; clear

18 September, wed

	746 mmHg		74%
	6.1 m/s		+19

18 September, Wednesday. day, 19°; night, 16°; rain

19 September, thu

	746 mmHg		66%
	5.1 m/s		+19

19 September, Thursday. day, 21°; night, 15°; rain

20 September, fri

	744 mmHg		68%
	6.5 m/s		+19

20 September, Friday. day, 22°; night, 17°; rain

21 September, sat

	747 mmHg		66%
	5 m/s		+19

21 September, Saturday. day, 20°; night, 16°; clear

22 September, sun

	748 mmHg		68%
	4.6 m/s		+19

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

23 September, mon

	749 mmHg		62%
	5.3 m/s		+19

23 September, Monday. day, 21°; night, 17°; clear

24 September, tue

	749 mmHg		63%
	5.8 m/s		+19

24 September, Tuesday. day, 20°; night, 15°; clear

25 September, wed

	747 mmHg		66%
	5.5 m/s		+19

25 September, Wednesday. day, 21°; night, 16°; partly cloudy

26 September, thu

	745 mmHg		68%
	5.1 m/s		+19

26 September, Thursday. day, 20°; night, 17°; partly cloudy

27 September, fri

	743 mmHg		70%
	6.6 m/s		+18

27 September, Friday. day, 18°; night, 15°; partly cloudy

28 September, sat

	743 mmHg		74%
	6.9 m/s		+18

28 September, Saturday. day, 18°; night, 15°; rain

29 September, sun

	745 mmHg		75%
	7.5 m/s		+17

29 September, Sunday. day, 15°; night, 14°; overcast

30 September, mon

	747 mmHg		73%
	6.3 m/s		+17

30 September, Monday. day, 15°; night, 12°; clear

1 October, tue

	745 mmHg		68%
	7.4 m/s		+17

1 October, Tuesday. day, 16°; night, 12°; rain

2 October, wed

	745 mmHg		72%
	7.5 m/s		+16

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

3 October, thu

	746 mmHg		76%
	5.9 m/s		+16

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

4 October, fri

	747 mmHg		68%
	5.8 m/s		+16

4 October, Friday. day, 17°; night, 13°; rain

5 October, sat

	745 mmHg		73%
	6.5 m/s		+16

5 October, Saturday. day, 17°; night, 14°; partly cloudy

Average data for 10 years

Sarnia September

14

sunny days

9

days with precipitation

7

cloudy days

14 sunny days; 9 days with precipitation; 7 cloudy days;

67

%

air humidity

4.4

m/s

WindNW

64

mm of precipitation

(8% of annual average)

+20

°C

Water temperature

air humidity 67%; 64 millimeters of precipitation (8% of annual average); Wind north-westerly 4.4 Meters per second; Water temperature +20°

Weather graphs for September

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

NW

W

W

NW

S

W

NW

NW

N

SE

NW

W

SW

NW

N

SE

SW

NE

S

S

W

S

N

SE

SE

SE

SW

NW

N

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
Columbus
Pittsburgh
Niagara Falls
Macedonia
Buffalo
Barrie
London

Cities with similar weather in September

Varna
Podgorica
Vancouver
The Golden Sands
Chicago
Genoa
Boston
Seattle
Balkhash

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

In September, the weather in Sarnia is typically warm. Average daily high temperature in September is about 21 degrees above zero. On average, Sarnia has 14 sunny, 9 rainy, 6 partly cloudy, and 1 cloudy day in September. The rains are usually moderate.

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