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September weather forecast in Walnut Creek

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

	764 mmHg		47%
	4.4 m/s		+15

1 September, Sunday. day, 26°; night, 18°; clear

2 September, mon

	764 mmHg		46%
	4.6 m/s		+15

2 September, Monday. day, 26°; night, 17°; clear

3 September, tue

	764 mmHg		54%
	5 m/s		+15

3 September, Tuesday. day, 24°; night, 16°; clear

4 September, wed

	764 mmHg		56%
	5 m/s		+15

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

5 September, thu

	764 mmHg		43%
	4.4 m/s		+15

5 September, Thursday. day, 27°; night, 18°; clear

6 September, fri

	764 mmHg		46%
	4.6 m/s		+15

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

7 September, sat

	764 mmHg		50%
	4.6 m/s		+15

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

8 September, sun

	764 mmHg		55%
	4.3 m/s		+15

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

9 September, mon

	764 mmHg		49%
	4.4 m/s		+15

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

10 September, tue

	764 mmHg		50%
	4.1 m/s		+15

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

11 September, wed

	765 mmHg		62%
	5 m/s		+15

11 September, Wednesday. day, 23°; night, 15°; clear

12 September, thu

	764 mmHg		64%
	4.4 m/s		+15

12 September, Thursday. day, 21°; night, 15°; clear

13 September, fri

	764 mmHg		66%
	4.6 m/s		+15

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

14 September, sat

	766 mmHg		63%
	5.4 m/s		+15

14 September, Saturday. day, 21°; night, 15°; clear

15 September, sun

	766 mmHg		63%
	4.6 m/s		+15

15 September, Sunday. day, 22°; night, 15°; clear

16 September, mon

	765 mmHg		62%
	4.8 m/s		+15

16 September, Monday. day, 23°; night, 16°; clear

17 September, tue

	765 mmHg		56%
	4.5 m/s		+15

17 September, Tuesday. day, 24°; night, 17°; clear

18 September, wed

	765 mmHg		51%
	4.3 m/s		+15

18 September, Wednesday. day, 25°; night, 18°; clear

19 September, thu

	765 mmHg		56%
	4.3 m/s		+15

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

20 September, fri

	764 mmHg		56%
	4.8 m/s		+15

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

21 September, sat

	765 mmHg		56%
	4.5 m/s		+15

21 September, Saturday. day, 23°; night, 16°; clear

22 September, sun

	766 mmHg		49%
	4.1 m/s		+15

22 September, Sunday. day, 25°; night, 18°; clear

23 September, mon

	766 mmHg		46%
	4.5 m/s		+15

23 September, Monday. day, 25°; night, 18°; clear

24 September, tue

	765 mmHg		47%
	3.9 m/s		+15

24 September, Tuesday. day, 26°; night, 19°; clear

25 September, wed

	765 mmHg		40%
	3.9 m/s		+15

25 September, Wednesday. day, 27°; night, 20°; clear

26 September, thu

	764 mmHg		37%
	3.7 m/s		+15

26 September, Thursday. day, 28°; night, 20°; clear

27 September, fri

	764 mmHg		40%
	3.9 m/s		+15

27 September, Friday. day, 27°; night, 18°; clear

28 September, sat

	765 mmHg		54%
	4.8 m/s		+15

28 September, Saturday. day, 21°; night, 15°; clear

29 September, sun

	766 mmHg		62%
	4 m/s		+15

29 September, Sunday. day, 21°; night, 16°; clear

30 September, mon

	766 mmHg		49%
	3.9 m/s		+15

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

1 October, tue

	766 mmHg		40%
	4.8 m/s		+15

1 October, Tuesday. day, 24°; night, 17°; clear

2 October, wed

	764 mmHg		46%
	5.6 m/s		+14

2 October, Wednesday. day, 22°; night, 17°; clear

3 October, thu

	764 mmHg		50%
	4.6 m/s		+14

3 October, Thursday. day, 21°; night, 17°; clear

4 October, fri

	765 mmHg		54%
	4.5 m/s		+14

4 October, Friday. day, 22°; night, 16°; clear

5 October, sat

	767 mmHg		52%
	4 m/s		+14

5 October, Saturday. day, 22°; night, 16°; clear

Average data for 10 years

Walnut Creek September

30

sunny days

0

days with precipitation

0

cloudy days

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

52

%

air humidity

2.9

m/s

WindW

2

mm of precipitation

(1% of annual average)

+15

°C

Water temperature

air humidity 52%; 2 millimeters of precipitation (1% of annual average); Wind westerly 2.9 Meters per second; Water temperature +15°

Weather graphs for September

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

SW

SW

SW

W

W

W

W

W

W

W

W

W

SW

W

SW

SW

SW

SW

W

SW

SW

W

W

W

W

SW

W

W

W

W

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

San Francisco
Sacramento
Oakland
San Jose
Cupertino
Reno
Monterey
South San Francisco
Mountain View

Cities with similar weather in September

Varna
Podgorica
The Golden Sands
Genoa
Marseilles
Seattle
Lima
Brisbane
Albena

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

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

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