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September weather forecast in Sendai

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

	715 mmHg		85%
	3.1 m/s		+24

31 August, Sunday. day, 25°; night, 19°; rain

1 September, mon

	716 mmHg		83%
	3 m/s		+24

1 September, Monday. day, 26°; night, 20°; overcast

2 September, tue

	716 mmHg		83%
	3.4 m/s		+24

2 September, Tuesday. day, 26°; night, 19°; rain

3 September, wed

	716 mmHg		81%
	3.7 m/s		+24

3 September, Wednesday. day, 26°; night, 19°; rain

4 September, thu

	716 mmHg		83%
	3.5 m/s		+24

4 September, Thursday. day, 25°; night, 19°; overcast

5 September, fri

	716 mmHg		82%
	3 m/s		+24

5 September, Friday. day, 25°; night, 19°; rain

6 September, sat

	715 mmHg		84%
	3.5 m/s		+24

6 September, Saturday. day, 25°; night, 19°; rain

7 September, sun

	715 mmHg		84%
	3.4 m/s		+23

7 September, Sunday. day, 25°; night, 19°; rain

8 September, mon

	716 mmHg		84%
	3.4 m/s		+24

8 September, Monday. day, 25°; night, 18°; rain

9 September, tue

	716 mmHg		82%
	3.2 m/s		+24

9 September, Tuesday. day, 25°; night, 19°; clear

10 September, wed

	717 mmHg		83%
	3.2 m/s		+24

10 September, Wednesday. day, 26°; night, 19°; rain

11 September, thu

	717 mmHg		83%
	3.1 m/s		+23

11 September, Thursday. day, 25°; night, 18°; rain

12 September, fri

	717 mmHg		82%
	3.3 m/s		+24

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

13 September, sat

	717 mmHg		82%
	3.5 m/s		+23

13 September, Saturday. day, 24°; night, 18°; rain

14 September, sun

	717 mmHg		83%
	3 m/s		+23

14 September, Sunday. day, 24°; night, 17°; rain

15 September, mon

	717 mmHg		83%
	3.2 m/s		+23

15 September, Monday. day, 23°; night, 17°; rain

16 September, tue

	716 mmHg		83%
	3.6 m/s		+23

16 September, Tuesday. day, 23°; night, 17°; overcast

17 September, wed

	716 mmHg		83%
	3.7 m/s		+23

17 September, Wednesday. day, 24°; night, 17°; rain

18 September, thu

	716 mmHg		82%
	3.7 m/s		+23

18 September, Thursday. day, 24°; night, 17°; rain

19 September, fri

	716 mmHg		79%
	3.2 m/s		+23

19 September, Friday. day, 24°; night, 17°; overcast

20 September, sat

	717 mmHg		80%
	3.2 m/s		+23

20 September, Saturday. day, 23°; night, 15°; partly cloudy

21 September, sun

	717 mmHg		82%
	3.3 m/s		+23

21 September, Sunday. day, 22°; night, 15°; partly cloudy

22 September, mon

	717 mmHg		83%
	3.3 m/s		+22

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

23 September, tue

	718 mmHg		81%
	3.4 m/s		+22

23 September, Tuesday. day, 21°; night, 15°; partly cloudy

24 September, wed

	718 mmHg		81%
	3.7 m/s		+21

24 September, Wednesday. day, 21°; night, 15°; clear

25 September, thu

	718 mmHg		82%
	3.4 m/s		+22

25 September, Thursday. day, 21°; night, 15°; rain

26 September, fri

	719 mmHg		79%
	3.1 m/s		+21

26 September, Friday. day, 21°; night, 14°; overcast

27 September, sat

	718 mmHg		81%
	3.4 m/s		+21

27 September, Saturday. day, 21°; night, 14°; partly cloudy

28 September, sun

	718 mmHg		79%
	3.9 m/s		+21

28 September, Sunday. day, 21°; night, 13°; clear

29 September, mon

	718 mmHg		78%
	3.7 m/s		+21

29 September, Monday. day, 21°; night, 13°; partly cloudy

30 September, tue

	717 mmHg		81%
	4.1 m/s		+21

30 September, Tuesday. day, 21°; night, 14°; partly cloudy

1 October, wed

	716 mmHg		81%
	3.5 m/s		+21

1 October, Wednesday. day, 21°; night, 14°; rain

2 October, thu

	716 mmHg		79%
	4.19 m/s		+21

2 October, Thursday. day, 21°; night, 14°; partly cloudy

3 October, fri

	718 mmHg		78%
	4.19 m/s		+21

3 October, Friday. day, 20°; night, 13°; partly cloudy

4 October, sat

	718 mmHg		79%
	3.7 m/s		+21

4 October, Saturday. day, 20°; night, 13°; overcast

Average data for 10 years

Sendai September

3

sunny days

16

days with precipitation

15

cloudy days

3 sunny days; 16 days with precipitation; 15 cloudy days;

82

%

air humidity

2

m/s

WindS

157

mm of precipitation

(11% of annual average)

+23

°C

Water temperature

air humidity 82%; 157 millimeters of precipitation (11% of annual average); Wind southerly 2 Meters per second; Water temperature +23°

Weather graphs for September

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

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S

S

S

S

S

S

S

S

S

S

S

S

S

S

S

S

SW

SW

S

S

S

S

S

SW

S

S

SW

SW

S

1

Average data for 10 years

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

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20

21

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29

30

Daytime temperature

Night-time temperature

Cities near you

Tokyo
Toyama
Hakone
Aomori
Nagano
Fuji
Akita
Niigata
Kamakura

Cities with similar weather in September

Gagra
Istanbul
Pitsunda
New York
Budva
Rimini
New Athos
Aktau
Split

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

In September, the weather in Sendai is typically warm. Average daily high temperature in September is about 24 degrees above zero. On average, Sendai has 16 rainy, 6 partly cloudy, 5 cloudy, and 3 sunny 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 Sendai.

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