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September weather forecast in Hermosa Beach

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

	749 mmHg		65%
	4.1 m/s		+22

31 August, Sunday. day, 27°; night, 19°; clear

1 September, mon

	749 mmHg		65%
	4.19 m/s		+22

1 September, Monday. day, 27°; night, 19°; clear

2 September, tue

	750 mmHg		66%
	4.19 m/s		+22

2 September, Tuesday. day, 27°; night, 19°; rain

3 September, wed

	750 mmHg		66%
	4.4 m/s		+22

3 September, Wednesday. day, 28°; night, 19°; clear

4 September, thu

	750 mmHg		65%
	4.4 m/s		+22

4 September, Thursday. day, 28°; night, 19°; clear

5 September, fri

	750 mmHg		63%
	4.19 m/s		+22

5 September, Friday. day, 28°; night, 19°; clear

6 September, sat

	750 mmHg		63%
	4.19 m/s		+22

6 September, Saturday. day, 28°; night, 19°; clear

7 September, sun

	750 mmHg		65%
	4.19 m/s		+22

7 September, Sunday. day, 27°; night, 19°; clear

8 September, mon

	750 mmHg		66%
	4.19 m/s		+22

8 September, Monday. day, 27°; night, 18°; clear

9 September, tue

	749 mmHg		66%
	4.3 m/s		+22

9 September, Tuesday. day, 27°; night, 18°; clear

10 September, wed

	750 mmHg		67%
	4.19 m/s		+22

10 September, Wednesday. day, 26°; night, 18°; clear

11 September, thu

	751 mmHg		67%
	4.3 m/s		+22

11 September, Thursday. day, 26°; night, 18°; clear

12 September, fri

	751 mmHg		66%
	4.3 m/s		+22

12 September, Friday. day, 26°; night, 18°; clear

13 September, sat

	750 mmHg		66%
	4.19 m/s		+21

13 September, Saturday. day, 26°; night, 18°; clear

14 September, sun

	750 mmHg		67%
	4.1 m/s		+21

14 September, Sunday. day, 26°; night, 17°; clear

15 September, mon

	750 mmHg		68%
	4.1 m/s		+22

15 September, Monday. day, 26°; night, 18°; clear

16 September, tue

	750 mmHg		67%
	4 m/s		+22

16 September, Tuesday. day, 25°; night, 17°; clear

17 September, wed

	750 mmHg		67%
	3.9 m/s		+22

17 September, Wednesday. day, 25°; night, 17°; clear

18 September, thu

	750 mmHg		68%
	4 m/s		+22

18 September, Thursday. day, 25°; night, 17°; clear

19 September, fri

	750 mmHg		68%
	4.1 m/s		+22

19 September, Friday. day, 25°; night, 17°; clear

20 September, sat

	750 mmHg		70%
	4.1 m/s		+21

20 September, Saturday. day, 24°; night, 17°; clear

21 September, sun

	750 mmHg		69%
	4.3 m/s		+21

21 September, Sunday. day, 25°; night, 17°; clear

22 September, mon

	750 mmHg		68%
	4.3 m/s		+22

22 September, Monday. day, 25°; night, 17°; partly cloudy

23 September, tue

	751 mmHg		65%
	4.1 m/s		+22

23 September, Tuesday. day, 26°; night, 17°; clear

24 September, wed

	751 mmHg		64%
	4.19 m/s		+22

24 September, Wednesday. day, 26°; night, 17°; clear

25 September, thu

	751 mmHg		64%
	4.3 m/s		+22

25 September, Thursday. day, 26°; night, 17°; clear

26 September, fri

	750 mmHg		66%
	4.19 m/s		+22

26 September, Friday. day, 25°; night, 17°; partly cloudy

27 September, sat

	750 mmHg		67%
	4 m/s		+22

27 September, Saturday. day, 25°; night, 17°; clear

28 September, sun

	750 mmHg		67%
	3.9 m/s		+21

28 September, Sunday. day, 25°; night, 17°; partly cloudy

29 September, mon

	751 mmHg		65%
	3.9 m/s		+22

29 September, Monday. day, 25°; night, 17°; clear

30 September, tue

	750 mmHg		62%
	4 m/s		+22

30 September, Tuesday. day, 26°; night, 17°; clear

1 October, wed

	750 mmHg		63%
	4.1 m/s		+22

1 October, Wednesday. day, 25°; night, 17°; clear

2 October, thu

	751 mmHg		64%
	4 m/s		+21

2 October, Thursday. day, 25°; night, 17°; clear

3 October, fri

	751 mmHg		66%
	4 m/s		+21

3 October, Friday. day, 24°; night, 16°; clear

4 October, sat

	751 mmHg		66%
	4.1 m/s		+20

4 October, Saturday. day, 24°; night, 16°; clear

Average data for 10 years

Hermosa Beach September

26

sunny days

1

day with precipitation

3

cloudy days

26 sunny days; 1 day with precipitation; 3 cloudy days;

66

%

air humidity

2

m/s

WindSW

4

mm of precipitation

(2% of annual average)

+22

°C

Water temperature

air humidity 66%; 4 millimeters of precipitation (2% of annual average); Wind south-westerly 2 Meters per second; Water temperature +22°

Weather graphs for September

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

S

S

SW

SW

S

S

SW

SW

SW

SW

SW

SW

SW

S

SW

S

S

S

SW

S

SW

SW

S

S

SW

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

26

27

28

29

30

Daytime temperature

Night-time temperature

Cities near you

Los Angeles
Las Vegas
San Diego
Yuma
Santa Monica
Beverly Hills
Mexicali
Santa Barbara
Glendale

Cities with similar weather in September

Lisbon
Porto
Santa Cruz de Tenerife
Marseilles
Marbella
Cannes
Pula
Port Louis
Poreč

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

In September, the weather in Hermosa Beach is typically warm. Average daily high temperature in September is about 26 degrees above zero. On average, Hermosa Beach has 26 sunny, 3 partly cloudy, and 1 rainy day in September. The rains are usually light. September as well as May, June, July, and October is considered the most comfortable time to visit Hermosa Beach.

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