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September weather forecast in Hachioji

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

	732 mmHg		83%
	3.1 m/s

31 August, Sunday. day, 27°; night, 21°; partly cloudy

1 September, mon

	733 mmHg		82%
	3 m/s

1 September, Monday. day, 27°; night, 21°; rain

2 September, tue

	733 mmHg		81%
	3.2 m/s

2 September, Tuesday. day, 27°; night, 21°; rain

3 September, wed

	734 mmHg		82%
	3 m/s

3 September, Wednesday. day, 26°; night, 21°; rain

4 September, thu

	734 mmHg		84%
	3 m/s

4 September, Thursday. day, 26°; night, 20°; rain

5 September, fri

	733 mmHg		82%
	2.9 m/s

5 September, Friday. day, 26°; night, 21°; rain

6 September, sat

	733 mmHg		84%
	3.3 m/s

6 September, Saturday. day, 26°; night, 20°; rain

7 September, sun

	733 mmHg		83%
	3.4 m/s

7 September, Sunday. day, 26°; night, 21°; rain

8 September, mon

	733 mmHg		83%
	3.3 m/s

8 September, Monday. day, 26°; night, 20°; rain

9 September, tue

	734 mmHg		82%
	3.2 m/s

9 September, Tuesday. day, 26°; night, 20°; clear

10 September, wed

	734 mmHg		81%
	3 m/s

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

11 September, thu

	735 mmHg		82%
	2.8 m/s

11 September, Thursday. day, 26°; night, 20°; rain

12 September, fri

	735 mmHg		81%
	2.5 m/s

12 September, Friday. day, 26°; night, 20°; clear

13 September, sat

	735 mmHg		81%
	2.7 m/s

13 September, Saturday. day, 26°; night, 20°; partly cloudy

14 September, sun

	735 mmHg		82%
	2.8 m/s

14 September, Sunday. day, 25°; night, 20°; rain

15 September, mon

	735 mmHg		82%
	3.5 m/s

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

16 September, tue

	734 mmHg		82%
	3.6 m/s

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

17 September, wed

	734 mmHg		82%
	3.5 m/s

17 September, Wednesday. day, 25°; night, 19°; partly cloudy

18 September, thu

	734 mmHg		81%
	3.1 m/s

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

19 September, fri

	734 mmHg		78%
	3.3 m/s

19 September, Friday. day, 25°; night, 19°; partly cloudy

20 September, sat

	735 mmHg		80%
	3.1 m/s

20 September, Saturday. day, 24°; night, 17°; partly cloudy

21 September, sun

	734 mmHg		82%
	3.6 m/s

21 September, Sunday. day, 23°; night, 18°; overcast

22 September, mon

	735 mmHg		82%
	3.5 m/s

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

23 September, tue

	736 mmHg		81%
	3.1 m/s

23 September, Tuesday. day, 22°; night, 17°; rain

24 September, wed

	736 mmHg		81%
	3.1 m/s

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

25 September, thu

	735 mmHg		80%
	3.2 m/s

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

26 September, fri

	736 mmHg		82%
	2.8 m/s

26 September, Friday. day, 21°; night, 16°; rain

27 September, sat

	736 mmHg		80%
	3 m/s

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

28 September, sun

	736 mmHg		76%
	2.8 m/s

28 September, Sunday. day, 23°; night, 16°; partly cloudy

29 September, mon

	736 mmHg		80%
	2.9 m/s

29 September, Monday. day, 21°; night, 16°; partly cloudy

30 September, tue

	735 mmHg		80%
	3.5 m/s

30 September, Tuesday. day, 22°; night, 16°; rain

1 October, wed

	734 mmHg		81%
	3.2 m/s

1 October, Wednesday. day, 22°; night, 16°; rain

2 October, thu

	734 mmHg		77%
	2.9 m/s

2 October, Thursday. day, 23°; night, 16°; partly cloudy

3 October, fri

	736 mmHg		79%
	3 m/s

3 October, Friday. day, 22°; night, 16°; rain

4 October, sat

	736 mmHg		79%
	2.6 m/s

4 October, Saturday. day, 21°; night, 16°; rain

Average data for 10 years

Hachioji September

3

sunny days

19

days with precipitation

13

cloudy days

3 sunny days; 19 days with precipitation; 13 cloudy days;

81

%

air humidity

1.7

m/s

WindS

247

mm of precipitation

(13% of annual average)

air humidity 81%; 247 millimeters of precipitation (13% of annual average); Wind southerly 1.7 Meters per second

Weather graphs for September

TemperaturePrecipitation chance, %Humidity, %Wind, m/sPressure, mmHg

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S

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SW

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SW

S

S

SW

1

Average data for 10 years

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30

Daytime temperature

Night-time temperature

Cities near you

Tokyo
Osaka
Kyoto
Toyama
Hakone
Sendai
Nagano
Nagoya
Fuji

Cities with similar weather in September

Baku
Madrid
Beijing
Dushanbe
Thessaloniki
Taraz
Gudauta
Bar
Osh

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

In September, the weather in Hachioji is typically warm. Average daily high temperature in September is about 24 degrees above zero. On average, Hachioji has 19 rainy, 7 partly cloudy, 3 sunny, and 1 cloudy day in September. The rains are usually heavy. September as well as January, February, March, and April is considered the most uncomfortable time to visit Hachioji.

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