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September weather forecast in Iwaki

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

30 August, sun

	740 mmHg		85%
	6.5 m/s		+25

30 August, Sunday. day, 24°; night, 22°; rain

31 August, mon

	742 mmHg		81%
	5.1 m/s		+25

31 August, Monday. day, 24°; night, 22°; rain

1 September, tue

	743 mmHg		82%
	6 m/s		+25

1 September, Tuesday. day, 24°; night, 22°; rain

2 September, wed

	744 mmHg		81%
	5 m/s		+25

2 September, Wednesday. day, 25°; night, 22°; partly cloudy

3 September, thu

	743 mmHg		81%
	4.8 m/s		+25

3 September, Thursday. day, 25°; night, 22°; rain

4 September, fri

	743 mmHg		83%
	4 m/s		+25

4 September, Friday. day, 24°; night, 22°; partly cloudy

5 September, sat

	743 mmHg		81%
	5 m/s		+25

5 September, Saturday. day, 24°; night, 22°; clear

6 September, sun

	742 mmHg		81%
	4.3 m/s		+25

6 September, Sunday. day, 24°; night, 21°; rain

7 September, mon

	742 mmHg		85%
	4.9 m/s		+24

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

8 September, tue

	743 mmHg		77%
	6 m/s		+24

8 September, Tuesday. day, 24°; night, 21°; clear

9 September, wed

	743 mmHg		75%
	4.8 m/s		+24

9 September, Wednesday. day, 24°; night, 21°; rain

10 September, thu

	744 mmHg		76%
	4 m/s		+24

10 September, Thursday. day, 24°; night, 21°; clear

11 September, fri

	743 mmHg		80%
	5.1 m/s		+24

11 September, Friday. day, 23°; night, 21°; rain

12 September, sat

	742 mmHg		79%
	5 m/s		+25

12 September, Saturday. day, 25°; night, 21°; rain

13 September, sun

	745 mmHg		79%
	4.6 m/s		+24

13 September, Sunday. day, 23°; night, 20°; clear

14 September, mon

	745 mmHg		79%
	4.5 m/s		+24

14 September, Monday. day, 23°; night, 21°; partly cloudy

15 September, tue

	744 mmHg		80%
	5.3 m/s		+24

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

16 September, wed

	745 mmHg		76%
	5.6 m/s		+24

16 September, Wednesday. day, 22°; night, 20°; rain

17 September, thu

	743 mmHg		77%
	4.9 m/s		+24

17 September, Thursday. day, 23°; night, 20°; rain

18 September, fri

	743 mmHg		77%
	4.8 m/s		+23

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

19 September, sat

	742 mmHg		76%
	5.6 m/s		+23

19 September, Saturday. day, 22°; night, 19°; clear

20 September, sun

	743 mmHg		77%
	6.5 m/s		+23

20 September, Sunday. day, 22°; night, 20°; partly cloudy

21 September, mon

	744 mmHg		76%
	5.3 m/s		+23

21 September, Monday. day, 22°; night, 19°; rain

22 September, tue

	746 mmHg		79%
	4.9 m/s		+23

22 September, Tuesday. day, 19°; night, 18°; clear

23 September, wed

	745 mmHg		76%
	4.8 m/s		+23

23 September, Wednesday. day, 20°; night, 19°; partly cloudy

24 September, thu

	743 mmHg		81%
	6.3 m/s		+22

24 September, Thursday. day, 20°; night, 18°; rain

25 September, fri

	745 mmHg		80%
	4.9 m/s		+22

25 September, Friday. day, 20°; night, 18°; rain

26 September, sat

	746 mmHg		79%
	5 m/s		+22

26 September, Saturday. day, 19°; night, 18°; clear

27 September, sun

	746 mmHg		75%
	5.9 m/s		+22

27 September, Sunday. day, 20°; night, 17°; partly cloudy

28 September, mon

	745 mmHg		75%
	5.8 m/s		+22

28 September, Monday. day, 20°; night, 18°; partly cloudy

29 September, tue

	746 mmHg		77%
	4.3 m/s		+21

29 September, Tuesday. day, 20°; night, 17°; clear

30 September, wed

	746 mmHg		76%
	5.8 m/s		+21

30 September, Wednesday. day, 19°; night, 17°; rain

1 October, thu

	743 mmHg		81%
	7 m/s		+22

1 October, Thursday. day, 20°; night, 18°; rain

2 October, fri

	743 mmHg		77%
	5.5 m/s		+21

2 October, Friday. day, 21°; night, 17°; rain

3 October, sat

	746 mmHg		75%
	5.5 m/s		+21

3 October, Saturday. day, 18°; night, 16°; rain

Average data for 10 years

Iwaki September

8

sunny days

15

days with precipitation

7

cloudy days

8 sunny days; 15 days with precipitation; 7 cloudy days;

79

%

air humidity

3.5

m/s

WindNE

158

mm of precipitation

(13% of annual average)

+24

°C

Water temperature

air humidity 79%; 158 millimeters of precipitation (13% of annual average); Wind north-easterly 3.5 Meters per second; Water temperature +24°

Weather graphs for September

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

NE

SE

S

SE

N

N

NE

NE

S

S

NW

W

NE

SE

SE

SE

SW

S

N

NE

NE

NE

NE

N

N

NE

N

N

NW

NE

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

Tokyo
Aomori
Fuji
Nagano
Sendai
Hakone
Niigata
Toyama
Yokohama

Cities with similar weather in September

Gagra
Istanbul
Baku
Pitsunda
Budva
Rimini
Venice
New Athos
Aktau

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

In September, the weather in Iwaki is typically warm. Average daily high temperature in September is about 22 degrees above zero. On average, Iwaki has 15 rainy, 8 sunny, and 7 partly cloudy days in September. The rains are usually heavy.

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