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September weather forecast in Hakodate

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

	723 mmHg		85%
	3.7 m/s		+23

31 August, Sunday. day, 23°; night, 18°; rain

1 September, mon

	724 mmHg		83%
	3.7 m/s		+23

1 September, Monday. day, 24°; night, 18°; overcast

2 September, tue

	724 mmHg		83%
	4.1 m/s		+23

2 September, Tuesday. day, 23°; night, 18°; rain

3 September, wed

	725 mmHg		82%
	4.3 m/s		+23

3 September, Wednesday. day, 23°; night, 17°; partly cloudy

4 September, thu

	725 mmHg		82%
	4 m/s		+23

4 September, Thursday. day, 23°; night, 17°; overcast

5 September, fri

	725 mmHg		82%
	4 m/s		+22

5 September, Friday. day, 22°; night, 18°; rain

6 September, sat

	724 mmHg		84%
	4 m/s		+22

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

7 September, sun

	723 mmHg		83%
	4.4 m/s		+22

7 September, Sunday. day, 23°; night, 17°; partly cloudy

8 September, mon

	725 mmHg		80%
	4.3 m/s		+22

8 September, Monday. day, 23°; night, 17°; clear

9 September, tue

	725 mmHg		82%
	3.5 m/s		+22

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

10 September, wed

	725 mmHg		81%
	3.8 m/s		+22

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

11 September, thu

	726 mmHg		82%
	3.9 m/s		+22

11 September, Thursday. day, 21°; night, 16°; rain

12 September, fri

	726 mmHg		81%
	4 m/s		+22

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

13 September, sat

	726 mmHg		81%
	4.1 m/s		+22

13 September, Saturday. day, 21°; night, 15°; overcast

14 September, sun

	726 mmHg		81%
	3.8 m/s		+22

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

15 September, mon

	726 mmHg		79%
	3.1 m/s		+22

15 September, Monday. day, 21°; night, 15°; clear

16 September, tue

	725 mmHg		80%
	3.8 m/s		+22

16 September, Tuesday. day, 21°; night, 16°; rain

17 September, wed

	725 mmHg		82%
	4.5 m/s		+22

17 September, Wednesday. day, 21°; night, 16°; rain

18 September, thu

	724 mmHg		80%
	4.5 m/s		+22

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

19 September, fri

	724 mmHg		77%
	4.69 m/s		+22

19 September, Friday. day, 20°; night, 14°; rain

20 September, sat

	725 mmHg		75%
	4.1 m/s		+21

20 September, Saturday. day, 20°; night, 13°; clear

21 September, sun

	726 mmHg		75%
	3.9 m/s		+21

21 September, Sunday. day, 19°; night, 13°; partly cloudy

22 September, mon

	727 mmHg		78%
	4.1 m/s		+21

22 September, Monday. day, 19°; night, 13°; partly cloudy

23 September, tue

	727 mmHg		79%
	3.9 m/s		+21

23 September, Tuesday. day, 19°; night, 13°; rain

24 September, wed

	727 mmHg		79%
	4.6 m/s		+21

24 September, Wednesday. day, 19°; night, 14°; partly cloudy

25 September, thu

	726 mmHg		79%
	4.3 m/s		+21

25 September, Thursday. day, 19°; night, 13°; clear

26 September, fri

	727 mmHg		76%
	3.7 m/s		+21

26 September, Friday. day, 19°; night, 13°; partly cloudy

27 September, sat

	726 mmHg		80%
	4.4 m/s		+21

27 September, Saturday. day, 19°; night, 13°; rain

28 September, sun

	726 mmHg		77%
	4.5 m/s		+21

28 September, Sunday. day, 19°; night, 13°; rain

29 September, mon

	727 mmHg		77%
	4.3 m/s		+20

29 September, Monday. day, 19°; night, 13°; partly cloudy

30 September, tue

	726 mmHg		79%
	4.4 m/s		+20

30 September, Tuesday. day, 19°; night, 13°; clear

1 October, wed

	724 mmHg		80%
	4.5 m/s		+20

1 October, Wednesday. day, 19°; night, 13°; rain

2 October, thu

	724 mmHg		79%
	5.2 m/s		+20

2 October, Thursday. day, 18°; night, 13°; rain

3 October, fri

	725 mmHg		77%
	5.3 m/s		+20

3 October, Friday. day, 17°; night, 12°; rain

4 October, sat

	726 mmHg		77%
	4.8 m/s		+19

4 October, Saturday. day, 17°; night, 11°; rain

Average data for 10 years

Hakodate September

5

sunny days

14

days with precipitation

11

cloudy days

5 sunny days; 14 days with precipitation; 11 cloudy days;

80

%

air humidity

2.6

m/s

WindS

163

mm of precipitation

(13% of annual average)

+22

°C

Water temperature

air humidity 80%; 163 millimeters of precipitation (13% of annual average); Wind southerly 2.6 Meters per second; Water temperature +22°

Weather graphs for September

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

S

S

S

S

SE

SE

S

S

S

S

S

S

S

S

S

S

S

S

SW

SW

SW

S

S

S

SW

S

S

SW

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
Shirahama
Wakkanai
Asahikawa
Yamagata
Obihiro

Cities with similar weather in September

Suhum
Burgas
Varna
The Sunny Beach
Podgorica
The Golden Sands
Chicago
Pomorie
Genoa

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

In September, the weather in Hakodate is typically warm. Average daily high temperature in September is about 21 degrees above zero. On average, Hakodate has 14 rainy, 8 partly cloudy, 5 sunny, and 3 cloudy days in September. The rains are usually heavy.

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