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September weather forecast in Long 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

	753 mmHg		60%
	3.7 m/s		+22

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

1 September, mon

	753 mmHg		60%
	3.8 m/s		+22

1 September, Monday. day, 31°; night, 19°; clear

2 September, tue

	753 mmHg		61%
	3.8 m/s		+22

2 September, Tuesday. day, 31°; night, 19°; clear

3 September, wed

	753 mmHg		61%
	3.9 m/s		+22

3 September, Wednesday. day, 31°; night, 19°; clear

4 September, thu

	753 mmHg		60%
	3.8 m/s		+22

4 September, Thursday. day, 32°; night, 19°; clear

5 September, fri

	753 mmHg		58%
	3.7 m/s		+22

5 September, Friday. day, 32°; night, 19°; clear

6 September, sat

	753 mmHg		58%
	3.8 m/s		+22

6 September, Saturday. day, 32°; night, 19°; clear

7 September, sun

	753 mmHg		60%
	3.8 m/s		+22

7 September, Sunday. day, 31°; night, 19°; clear

8 September, mon

	753 mmHg		61%
	3.7 m/s		+22

8 September, Monday. day, 30°; night, 18°; clear

9 September, tue

	753 mmHg		61%
	3.8 m/s		+22

9 September, Tuesday. day, 30°; night, 18°; clear

10 September, wed

	753 mmHg		62%
	3.8 m/s		+22

10 September, Wednesday. day, 30°; night, 18°; clear

11 September, thu

	754 mmHg		62%
	3.8 m/s		+22

11 September, Thursday. day, 30°; night, 18°; clear

12 September, fri

	754 mmHg		61%
	3.8 m/s		+22

12 September, Friday. day, 30°; night, 18°; clear

13 September, sat

	753 mmHg		62%
	3.7 m/s		+21

13 September, Saturday. day, 29°; night, 18°; clear

14 September, sun

	753 mmHg		62%
	3.6 m/s		+21

14 September, Sunday. day, 29°; night, 17°; clear

15 September, mon

	754 mmHg		64%
	3.6 m/s		+22

15 September, Monday. day, 29°; night, 18°; rain

16 September, tue

	754 mmHg		63%
	3.5 m/s		+22

16 September, Tuesday. day, 28°; night, 17°; clear

17 September, wed

	754 mmHg		64%
	3.5 m/s		+22

17 September, Wednesday. day, 28°; night, 17°; clear

18 September, thu

	754 mmHg		64%
	3.6 m/s		+22

18 September, Thursday. day, 28°; night, 17°; clear

19 September, fri

	753 mmHg		65%
	3.6 m/s		+22

19 September, Friday. day, 28°; night, 16°; clear

20 September, sat

	753 mmHg		66%
	3.7 m/s		+21

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

21 September, sun

	754 mmHg		66%
	3.8 m/s		+21

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

22 September, mon

	754 mmHg		65%
	3.8 m/s		+22

22 September, Monday. day, 28°; night, 17°; partly cloudy

23 September, tue

	754 mmHg		62%
	3.7 m/s		+22

23 September, Tuesday. day, 29°; night, 16°; clear

24 September, wed

	754 mmHg		60%
	3.7 m/s		+22

24 September, Wednesday. day, 29°; night, 16°; clear

25 September, thu

	754 mmHg		60%
	3.7 m/s		+22

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

26 September, fri

	754 mmHg		62%
	3.6 m/s		+22

26 September, Friday. day, 28°; night, 17°; partly cloudy

27 September, sat

	754 mmHg		63%
	3.5 m/s		+22

27 September, Saturday. day, 28°; night, 17°; clear

28 September, sun

	754 mmHg		64%
	3.5 m/s		+21

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

29 September, mon

	754 mmHg		62%
	3.5 m/s		+22

29 September, Monday. day, 28°; night, 16°; partly cloudy

30 September, tue

	754 mmHg		58%
	3.6 m/s		+22

30 September, Tuesday. day, 29°; night, 16°; clear

1 October, wed

	754 mmHg		58%
	3.6 m/s		+22

1 October, Wednesday. day, 29°; night, 16°; clear

2 October, thu

	754 mmHg		60%
	3.6 m/s		+21

2 October, Thursday. day, 28°; night, 16°; clear

3 October, fri

	754 mmHg		62%
	3.6 m/s		+21

3 October, Friday. day, 27°; night, 16°; clear

4 October, sat

	754 mmHg		63%
	3.6 m/s		+20

4 October, Saturday. day, 27°; night, 15°; partly cloudy

Average data for 10 years

Long Beach September

25

sunny days

1

day with precipitation

4

cloudy days

25 sunny days; 1 day with precipitation; 4 cloudy days;

62

%

air humidity

1.7

m/s

WindS

5

mm of precipitation

(2% of annual average)

+22

°C

Water temperature

air humidity 62%; 5 millimeters of precipitation (2% of annual average); Wind southerly 1.7 Meters per second; Water temperature +22°

Weather graphs for September

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

S

S

S

S

S

S

S

S

S

S

S

S

S

S

S

S

S

S

S

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

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

Barcelona
Rome
Batumi
Heraklion
Nice
Salou
Malaga
Rio de Janeiro
Pisa

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

In September, the weather in Long Beach is typically hot. Average daily high temperature in September is about 29 degrees above zero. On average, Long Beach has 25 sunny, 4 partly cloudy, and 1 rainy day in September. The rains are usually light.

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