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September weather forecast in Westlake

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

	746 mmHg		75%
	5.2 m/s		+23

31 August, Sunday. day, 25°; night, 20°; clear

1 September, mon

	747 mmHg		76%
	4.9 m/s		+23

1 September, Monday. day, 24°; night, 19°; clear

2 September, tue

	746 mmHg		76%
	4.9 m/s		+23

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

3 September, wed

	746 mmHg		75%
	4.8 m/s		+23

3 September, Wednesday. day, 25°; night, 19°; clear

4 September, thu

	746 mmHg		75%
	4.9 m/s		+23

4 September, Thursday. day, 25°; night, 19°; clear

5 September, fri

	747 mmHg		75%
	4.9 m/s		+22

5 September, Friday. day, 24°; night, 19°; clear

6 September, sat

	746 mmHg		74%
	4.9 m/s		+23

6 September, Saturday. day, 25°; night, 19°; clear

7 September, sun

	745 mmHg		77%
	5.7 m/s		+22

7 September, Sunday. day, 24°; night, 19°; rain

8 September, mon

	745 mmHg		79%
	5.9 m/s		+22

8 September, Monday. day, 23°; night, 19°; rain

9 September, tue

	745 mmHg		79%
	5.2 m/s		+22

9 September, Tuesday. day, 23°; night, 18°; overcast

10 September, wed

	747 mmHg		78%
	5.2 m/s		+22

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

11 September, thu

	747 mmHg		76%
	5.2 m/s		+22

11 September, Thursday. day, 23°; night, 17°; clear

12 September, fri

	746 mmHg		77%
	5.5 m/s		+22

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

13 September, sat

	745 mmHg		77%
	5.3 m/s		+21

13 September, Saturday. day, 23°; night, 18°; rain

14 September, sun

	746 mmHg		76%
	5.6 m/s		+21

14 September, Sunday. day, 23°; night, 17°; partly cloudy

15 September, mon

	747 mmHg		76%
	5.5 m/s		+21

15 September, Monday. day, 21°; night, 16°; clear

16 September, tue

	748 mmHg		76%
	4.6 m/s		+20

16 September, Tuesday. day, 22°; night, 16°; clear

17 September, wed

	747 mmHg		76%
	5 m/s		+20

17 September, Wednesday. day, 22°; night, 16°; clear

18 September, thu

	746 mmHg		75%
	5 m/s		+20

18 September, Thursday. day, 22°; night, 16°; clear

19 September, fri

	746 mmHg		76%
	5.4 m/s		+20

19 September, Friday. day, 22°; night, 16°; clear

20 September, sat

	746 mmHg		76%
	5.2 m/s		+20

20 September, Saturday. day, 23°; night, 17°; partly cloudy

21 September, sun

	746 mmHg		76%
	5.4 m/s		+20

21 September, Sunday. day, 23°; night, 17°; rain

22 September, mon

	746 mmHg		77%
	6.1 m/s		+20

22 September, Monday. day, 21°; night, 16°; rain

23 September, tue

	747 mmHg		77%
	5.8 m/s		+20

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

24 September, wed

	747 mmHg		75%
	5.7 m/s		+20

24 September, Wednesday. day, 21°; night, 15°; partly cloudy

25 September, thu

	745 mmHg		76%
	6.1 m/s		+19

25 September, Thursday. day, 20°; night, 15°; overcast

26 September, fri

	745 mmHg		77%
	5.9 m/s		+19

26 September, Friday. day, 20°; night, 15°; overcast

27 September, sat

	744 mmHg		76%
	6.2 m/s		+19

27 September, Saturday. day, 20°; night, 15°; rain

28 September, sun

	744 mmHg		79%
	6 m/s		+19

28 September, Sunday. day, 20°; night, 15°; rain

29 September, mon

	745 mmHg		78%
	6 m/s		+19

29 September, Monday. day, 19°; night, 14°; rain

30 September, tue

	746 mmHg		77%
	6 m/s		+18

30 September, Tuesday. day, 19°; night, 14°; rain

1 October, wed

	746 mmHg		75%
	5.9 m/s		+18

1 October, Wednesday. day, 19°; night, 13°; clear

2 October, thu

	746 mmHg		76%
	6.1 m/s		+17

2 October, Thursday. day, 19°; night, 14°; partly cloudy

3 October, fri

	746 mmHg		76%
	6.3 m/s		+17

3 October, Friday. day, 19°; night, 14°; rain

4 October, sat

	747 mmHg		78%
	6 m/s		+17

4 October, Saturday. day, 19°; night, 14°; rain

Average data for 10 years

Westlake September

13

sunny days

10

days with precipitation

5

cloudy days

13 sunny days; 10 days with precipitation; 5 cloudy days;

76

%

air humidity

3.8

m/s

WindS

85

mm of precipitation

(8% of annual average)

+21

°C

Water temperature

air humidity 76%; 85 millimeters of precipitation (8% of annual average); Wind southerly 3.8 Meters per second; Water temperature +21°

Weather graphs for September

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

SE

SE

S

S

SE

S

S

S

S

S

S

S

SW

S

S

S

SE

S

SE

S

S

S

S

S

S

S

S

S

S

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

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27

28

29

30

Daytime temperature

Night-time temperature

Cities near you

Toronto
Detroit
Milan
Pittsburgh
Sidney
Burlington
Macedonia
Athens
Clarksburg

Cities with similar weather in September

Suhum
Burgas
Varna
Tivat
The Sunny Beach
Podgorica
The Golden Sands
Chicago
Pomorie

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

September in Westlake is the sunniest month of the year. In September, the weather in Westlake is typically warm. Average daily high temperature in September is about 22 degrees above zero. On average, Westlake has 13 sunny, 10 rainy, 4 partly cloudy, and 3 cloudy days in September. The rains are usually heavy.

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