10 day forecast Monthly forecast Weather map

City or area

Go to comparison

September weather forecast in Iwakuni

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

	730 mmHg		79%
	3.8 m/s		+27

31 August, Sunday. day, 28°; night, 22°; rain

1 September, mon

	731 mmHg		79%
	3.1 m/s		+27

1 September, Monday. day, 28°; night, 22°; overcast

2 September, tue

	731 mmHg		78%
	3.3 m/s		+26

2 September, Tuesday. day, 28°; night, 22°; rain

3 September, wed

	731 mmHg		79%
	3 m/s		+26

3 September, Wednesday. day, 28°; night, 22°; rain

4 September, thu

	731 mmHg		77%
	2.9 m/s		+27

4 September, Thursday. day, 28°; night, 21°; partly cloudy

5 September, fri

	730 mmHg		79%
	3.4 m/s		+26

5 September, Friday. day, 28°; night, 22°; rain

6 September, sat

	729 mmHg		81%
	4 m/s		+26

6 September, Saturday. day, 27°; night, 22°; rain

7 September, sun

	730 mmHg		79%
	4.3 m/s		+27

7 September, Sunday. day, 28°; night, 21°; rain

8 September, mon

	731 mmHg		77%
	3.1 m/s		+26

8 September, Monday. day, 28°; night, 21°; clear

9 September, tue

	732 mmHg		77%
	2.8 m/s		+27

9 September, Tuesday. day, 28°; night, 21°; clear

10 September, wed

	732 mmHg		77%
	2.9 m/s		+27

10 September, Wednesday. day, 27°; night, 21°; partly cloudy

11 September, thu

	732 mmHg		77%
	2.9 m/s		+26

11 September, Thursday. day, 28°; night, 21°; rain

12 September, fri

	732 mmHg		79%
	3.1 m/s		+26

12 September, Friday. day, 27°; night, 21°; rain

13 September, sat

	733 mmHg		78%
	3 m/s		+26

13 September, Saturday. day, 27°; night, 21°; rain

14 September, sun

	732 mmHg		78%
	3.3 m/s		+26

14 September, Sunday. day, 27°; night, 21°; rain

15 September, mon

	731 mmHg		78%
	3.6 m/s		+26

15 September, Monday. day, 26°; night, 21°; rain

16 September, tue

	731 mmHg		79%
	4.4 m/s		+26

16 September, Tuesday. day, 26°; night, 20°; rain

17 September, wed

	731 mmHg		78%
	4.3 m/s		+26

17 September, Wednesday. day, 26°; night, 20°; rain

18 September, thu

	732 mmHg		75%
	3.5 m/s		+26

18 September, Thursday. day, 27°; night, 20°; clear

19 September, fri

	732 mmHg		75%
	3.6 m/s		+25

19 September, Friday. day, 26°; night, 19°; clear

20 September, sat

	732 mmHg		76%
	3.6 m/s		+25

20 September, Saturday. day, 25°; night, 19°; partly cloudy

21 September, sun

	732 mmHg		75%
	3.6 m/s		+25

21 September, Sunday. day, 25°; night, 19°; overcast

22 September, mon

	732 mmHg		77%
	3.6 m/s		+25

22 September, Monday. day, 25°; night, 18°; partly cloudy

23 September, tue

	733 mmHg		75%
	3.7 m/s		+25

23 September, Tuesday. day, 25°; night, 18°; partly cloudy

24 September, wed

	733 mmHg		76%
	3.4 m/s		+25

24 September, Wednesday. day, 25°; night, 18°; partly cloudy

25 September, thu

	733 mmHg		76%
	3 m/s		+25

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

26 September, fri

	734 mmHg		74%
	3 m/s		+25

26 September, Friday. day, 25°; night, 18°; clear

27 September, sat

	734 mmHg		76%
	3.1 m/s		+25

27 September, Saturday. day, 25°; night, 18°; clear

28 September, sun

	734 mmHg		75%
	3.2 m/s		+24

28 September, Sunday. day, 25°; night, 18°; partly cloudy

29 September, mon

	733 mmHg		77%
	3 m/s		+24

29 September, Monday. day, 24°; night, 18°; rain

30 September, tue

	733 mmHg		80%
	3.2 m/s		+24

30 September, Tuesday. day, 24°; night, 18°; rain

1 October, wed

	733 mmHg		76%
	3.5 m/s		+24

1 October, Wednesday. day, 25°; night, 18°; rain

2 October, thu

	733 mmHg		77%
	3.6 m/s		+24

2 October, Thursday. day, 24°; night, 17°; rain

3 October, fri

	734 mmHg		74%
	3.3 m/s		+24

3 October, Friday. day, 24°; night, 17°; partly cloudy

4 October, sat

	734 mmHg		73%
	3.4 m/s		+23

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

Average data for 10 years

Iwakuni September

7

sunny days

14

days with precipitation

10

cloudy days

7 sunny days; 14 days with precipitation; 10 cloudy days;

77

%

air humidity

2.2

m/s

WindSE

213

mm of precipitation

(12% of annual average)

+26

°C

Water temperature

air humidity 77%; 213 millimeters of precipitation (12% of annual average); Wind south-easterly 2.2 Meters per second; Water temperature +26°

Weather graphs for September

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

SE

SE

SE

SE

SE

S

S

SE

S

SE

SE

SE

SE

SE

SE

SE

SE

SE

SE

SE

SE

SE

SE

SE

SE

SE

SE

SE

SE

SE

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

Osaka
Busan
Kyoto
Fukuoka
Hiroshima
Kumamoto
Okayama
Changwon
Geoje

Cities with similar weather in September

Kemer
Athens
Tokyo
Thessaloniki
Salou
Bodrum
Malaga
Alicante
Naples

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

In September, the weather in Iwakuni is typically warm. Average daily high temperature in September is about 26 degrees above zero. On average, Iwakuni has 14 rainy, 7 sunny, 7 partly cloudy, and 2 cloudy days in September. The rains are usually heavy.

Links

Help Terms of use Contact us

For partners

Advertisement Yandex.Weather API

Weather forecasts

Hourly forecast Detailed 10 day forecast Monthly forecast Weather map Magnetic storms

Download app

English

English
Русский

Source data: Yandex.Traffic, Roshydromet FSBI "CAO", NOAA, © OpenStreetMap

© 2017–2025 YANDEX LLC