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September weather forecast in Shirahama

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

	718 mmHg		86%
	4.5 m/s		+23

31 August, Sunday. day, 23°; night, 19°; rain

1 September, mon

	719 mmHg		85%
	3.9 m/s		+23

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

2 September, tue

	719 mmHg		85%
	4.3 m/s		+23

2 September, Tuesday. day, 24°; night, 19°; partly cloudy

3 September, wed

	720 mmHg		83%
	4.1 m/s		+23

3 September, Wednesday. day, 24°; night, 19°; overcast

4 September, thu

	720 mmHg		85%
	4.1 m/s		+23

4 September, Thursday. day, 23°; night, 19°; rain

5 September, fri

	720 mmHg		84%
	3.9 m/s		+23

5 September, Friday. day, 23°; night, 19°; rain

6 September, sat

	719 mmHg		85%
	4.3 m/s		+22

6 September, Saturday. day, 23°; night, 19°; rain

7 September, sun

	719 mmHg		85%
	4.69 m/s		+22

7 September, Sunday. day, 23°; night, 19°; rain

8 September, mon

	720 mmHg		84%
	4.3 m/s		+22

8 September, Monday. day, 23°; night, 18°; rain

9 September, tue

	720 mmHg		83%
	3.9 m/s		+22

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

10 September, wed

	720 mmHg		84%
	3.8 m/s		+22

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

11 September, thu

	721 mmHg		84%
	4.1 m/s		+23

11 September, Thursday. day, 22°; night, 18°; rain

12 September, fri

	721 mmHg		82%
	4 m/s		+23

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

13 September, sat

	721 mmHg		82%
	4.19 m/s		+22

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

14 September, sun

	721 mmHg		83%
	4 m/s		+22

14 September, Sunday. day, 22°; night, 17°; rain

15 September, mon

	721 mmHg		84%
	4 m/s		+22

15 September, Monday. day, 21°; night, 17°; overcast

16 September, tue

	720 mmHg		83%
	4.6 m/s		+22

16 September, Tuesday. day, 21°; night, 17°; overcast

17 September, wed

	720 mmHg		83%
	4.9 m/s		+22

17 September, Wednesday. day, 22°; night, 17°; rain

18 September, thu

	720 mmHg		82%
	4.5 m/s		+22

18 September, Thursday. day, 22°; night, 17°; rain

19 September, fri

	719 mmHg		79%
	4.3 m/s		+21

19 September, Friday. day, 22°; night, 17°; partly cloudy

20 September, sat

	720 mmHg		79%
	4.19 m/s		+21

20 September, Saturday. day, 21°; night, 15°; partly cloudy

21 September, sun

	721 mmHg		80%
	4.6 m/s		+21

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

22 September, mon

	721 mmHg		81%
	4.8 m/s		+21

22 September, Monday. day, 20°; night, 15°; rain

23 September, tue

	722 mmHg		80%
	4.5 m/s		+21

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

24 September, wed

	722 mmHg		79%
	4.9 m/s		+20

24 September, Wednesday. day, 20°; night, 15°; partly cloudy

25 September, thu

	721 mmHg		80%
	4.69 m/s		+20

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

26 September, fri

	722 mmHg		77%
	4.3 m/s		+20

26 September, Friday. day, 19°; night, 14°; partly cloudy

27 September, sat

	721 mmHg		79%
	4.6 m/s		+20

27 September, Saturday. day, 19°; night, 14°; clear

28 September, sun

	721 mmHg		76%
	4.4 m/s		+20

28 September, Sunday. day, 20°; night, 14°; clear

29 September, mon

	722 mmHg		76%
	4.19 m/s		+20

29 September, Monday. day, 20°; night, 13°; clear

30 September, tue

	721 mmHg		79%
	4.8 m/s		+20

30 September, Tuesday. day, 20°; night, 14°; partly cloudy

1 October, wed

	720 mmHg		79%
	5 m/s		+19

1 October, Wednesday. day, 20°; night, 15°; rain

2 October, thu

	720 mmHg		78%
	5.1 m/s		+19

2 October, Thursday. day, 20°; night, 14°; rain

3 October, fri

	721 mmHg		75%
	5.1 m/s		+19

3 October, Friday. day, 19°; night, 14°; partly cloudy

4 October, sat

	721 mmHg		76%
	4.69 m/s		+19

4 October, Saturday. day, 19°; night, 13°; rain

Average data for 10 years

Shirahama September

5

sunny days

16

days with precipitation

14

cloudy days

5 sunny days; 16 days with precipitation; 14 cloudy days;

82

%

air humidity

2.8

m/s

WindS

193

mm of precipitation

(13% of annual average)

+22

°C

Water temperature

air humidity 82%; 193 millimeters of precipitation (13% of annual average); Wind southerly 2.8 Meters per second; Water temperature +22°

Weather graphs for September

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

S

S

S

SE

SE

S

S

S

S

S

S

S

S

S

SE

S

S

SW

S

S

S

SE

SE

S

S

S

S

S

SW

SW

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

Sapporo
Sendai
Aomori
Akita
Niigata
Fukushima
Hakodate
Yamagata
Nikko

Cities with similar weather in September

Gagra
Suhum
Pitsunda
New York
Burgas
Varna
Tivat
The Sunny Beach
The Golden Sands

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

In September, the weather in Shirahama is typically warm. Average daily high temperature in September is about 22 degrees above zero. On average, Shirahama has 16 rainy, 6 partly cloudy, 5 sunny, and 3 cloudy days in September. The rains are usually heavy. September as well as January, February, March, and April is considered the most uncomfortable time to visit Shirahama.

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