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September weather forecast in Morro Bay

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

	740 mmHg		46%
	3.4 m/s		+20

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

1 September, mon

	741 mmHg		46%
	3.5 m/s		+21

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

2 September, tue

	741 mmHg		46%
	3.9 m/s		+21

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

3 September, wed

	741 mmHg		47%
	3.7 m/s		+20

3 September, Wednesday. day, 24°; night, 18°; clear

4 September, thu

	741 mmHg		47%
	3.9 m/s		+20

4 September, Thursday. day, 24°; night, 19°; clear

5 September, fri

	741 mmHg		43%
	3.5 m/s		+20

5 September, Friday. day, 25°; night, 20°; clear

6 September, sat

	741 mmHg		40%
	3.2 m/s		+20

6 September, Saturday. day, 25°; night, 20°; clear

7 September, sun

	741 mmHg		44%
	3 m/s		+20

7 September, Sunday. day, 24°; night, 18°; clear

8 September, mon

	741 mmHg		50%
	3 m/s		+20

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

9 September, tue

	741 mmHg		52%
	3 m/s		+20

9 September, Tuesday. day, 24°; night, 18°; clear

10 September, wed

	742 mmHg		55%
	3 m/s		+20

10 September, Wednesday. day, 24°; night, 18°; clear

11 September, thu

	742 mmHg		57%
	3.5 m/s		+20

11 September, Thursday. day, 23°; night, 18°; clear

12 September, fri

	741 mmHg		56%
	3 m/s		+19

12 September, Friday. day, 22°; night, 17°; clear

13 September, sat

	741 mmHg		56%
	3.5 m/s		+19

13 September, Saturday. day, 22°; night, 18°; clear

14 September, sun

	742 mmHg		51%
	4.4 m/s		+20

14 September, Sunday. day, 23°; night, 18°; clear

15 September, mon

	742 mmHg		47%
	4.1 m/s		+20

15 September, Monday. day, 24°; night, 18°; clear

16 September, tue

	742 mmHg		50%
	3.7 m/s		+20

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

17 September, wed

	742 mmHg		50%
	3.2 m/s		+20

17 September, Wednesday. day, 24°; night, 19°; clear

18 September, thu

	742 mmHg		44%
	3.2 m/s		+20

18 September, Thursday. day, 24°; night, 20°; clear

19 September, fri

	742 mmHg		50%
	3.5 m/s		+20

19 September, Friday. day, 23°; night, 18°; clear

20 September, sat

	741 mmHg		55%
	4 m/s		+19

20 September, Saturday. day, 23°; night, 17°; clear

21 September, sun

	742 mmHg		54%
	4 m/s		+19

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

22 September, mon

	742 mmHg		44%
	3.9 m/s		+20

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

23 September, tue

	742 mmHg		38%
	3.5 m/s		+21

23 September, Tuesday. day, 25°; night, 20°; clear

24 September, wed

	742 mmHg		40%
	3.9 m/s		+21

24 September, Wednesday. day, 25°; night, 20°; clear

25 September, thu

	741 mmHg		38%
	3.7 m/s		+21

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

26 September, fri

	741 mmHg		37%
	3.4 m/s		+21

26 September, Friday. day, 26°; night, 21°; clear

27 September, sat

	741 mmHg		43%
	3.2 m/s		+21

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

28 September, sun

	742 mmHg		51%
	3.5 m/s		+19

28 September, Sunday. day, 22°; night, 17°; clear

29 September, mon

	742 mmHg		49%
	3.7 m/s		+20

29 September, Monday. day, 23°; night, 18°; clear

30 September, tue

	742 mmHg		46%
	4.1 m/s		+20

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

1 October, wed

	742 mmHg		38%
	4 m/s		+21

1 October, Wednesday. day, 24°; night, 19°; clear

2 October, thu

	741 mmHg		46%
	4.4 m/s		+19

2 October, Thursday. day, 21°; night, 16°; clear

3 October, fri

	741 mmHg		52%
	4 m/s		+18

3 October, Friday. day, 20°; night, 16°; clear

4 October, sat

	742 mmHg		55%
	4.3 m/s		+18

4 October, Saturday. day, 20°; night, 17°; clear

Average data for 10 years

Morro Bay September

30

sunny days

0

days with precipitation

0

cloudy days

30 sunny days; 0 days with precipitation; 0 cloudy days;

56

%

air humidity

3

m/s

WindNW

0.6

mm of precipitation

(1% of annual average)

+20

°C

Water temperature

air humidity 56%; 0.6 millimeters of precipitation (1% of annual average); Wind north-westerly 3 Meters per second; Water temperature +20°

Weather graphs for September

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

W

W

W

NW

W

W

W

W

W

W

W

W

W

W

NW

W

NW

W

W

W

NW

NW

NW

NW

NW

NW

W

NW

NW

NW

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

Los Angeles
San Francisco
Sacramento
Oakland
Santa Monica
Beverly Hills
Monterey
San Jose
Santa Barbara

Cities with similar weather in September

Batumi
Lisbon
Heraklion
Nice
Hersonisos
Kobuleti
Kos
Santa Cruz de Tenerife
Funchal

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

In September, the weather in Morro Bay is typically warm. Average daily high temperature in September is about 24 degrees above zero. On average, Morro Bay has 30 sunny days in September. September as well as June, July, August, and October is considered the most comfortable time to visit Morro Bay.

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