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September weather forecast in Sapporo

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

	753 mmHg		82%
	4.8 m/s		+22

31 August, Sunday. day, 23°; night, 19°; partly cloudy

1 September, mon

	754 mmHg		81%
	4.8 m/s		+22

1 September, Monday. day, 23°; night, 19°; partly cloudy

2 September, tue

	754 mmHg		80%
	5.2 m/s		+22

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

3 September, wed

	755 mmHg		79%
	5.4 m/s		+21

3 September, Wednesday. day, 23°; night, 18°; clear

4 September, thu

	755 mmHg		80%
	5.6 m/s		+22

4 September, Thursday. day, 22°; night, 18°; partly cloudy

5 September, fri

	755 mmHg		79%
	4.9 m/s		+22

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

6 September, sat

	754 mmHg		80%
	5 m/s		+21

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

7 September, sun

	753 mmHg		79%
	5.4 m/s		+21

7 September, Sunday. day, 22°; night, 18°; rain

8 September, mon

	755 mmHg		78%
	5.5 m/s		+21

8 September, Monday. day, 22°; night, 18°; clear

9 September, tue

	755 mmHg		79%
	5 m/s		+21

9 September, Tuesday. day, 22°; night, 18°; partly cloudy

10 September, wed

	755 mmHg		78%
	5.1 m/s		+22

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

11 September, thu

	756 mmHg		79%
	4.69 m/s		+22

11 September, Thursday. day, 22°; night, 17°; rain

12 September, fri

	756 mmHg		78%
	4.9 m/s		+22

12 September, Friday. day, 21°; night, 17°; overcast

13 September, sat

	756 mmHg		75%
	5.4 m/s		+22

13 September, Saturday. day, 21°; night, 17°; overcast

14 September, sun

	756 mmHg		77%
	5 m/s		+21

14 September, Sunday. day, 21°; night, 17°; partly cloudy

15 September, mon

	757 mmHg		77%
	4.4 m/s		+21

15 September, Monday. day, 21°; night, 17°; clear

16 September, tue

	756 mmHg		77%
	5.3 m/s		+21

16 September, Tuesday. day, 21°; night, 17°; overcast

17 September, wed

	755 mmHg		78%
	5.5 m/s		+21

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

18 September, thu

	754 mmHg		78%
	5.5 m/s		+21

18 September, Thursday. day, 20°; night, 16°; rain

19 September, fri

	754 mmHg		74%
	6.3 m/s		+20

19 September, Friday. day, 20°; night, 15°; clear

20 September, sat

	756 mmHg		71%
	5.8 m/s		+20

20 September, Saturday. day, 20°; night, 15°; clear

21 September, sun

	757 mmHg		71%
	5.2 m/s		+20

21 September, Sunday. day, 19°; night, 15°; partly cloudy

22 September, mon

	758 mmHg		73%
	5.5 m/s		+20

22 September, Monday. day, 19°; night, 15°; partly cloudy

23 September, tue

	758 mmHg		75%
	4.9 m/s		+20

23 September, Tuesday. day, 19°; night, 14°; rain

24 September, wed

	758 mmHg		76%
	5.5 m/s		+19

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

25 September, thu

	757 mmHg		75%
	5.7 m/s		+19

25 September, Thursday. day, 19°; night, 14°; rain

26 September, fri

	758 mmHg		74%
	5.3 m/s		+20

26 September, Friday. day, 19°; night, 14°; partly cloudy

27 September, sat

	757 mmHg		77%
	5.7 m/s		+19

27 September, Saturday. day, 19°; night, 14°; rain

28 September, sun

	757 mmHg		76%
	6.2 m/s		+19

28 September, Sunday. day, 18°; night, 14°; rain

29 September, mon

	757 mmHg		76%
	5.5 m/s		+19

29 September, Monday. day, 19°; night, 14°; partly cloudy

30 September, tue

	757 mmHg		77%
	5.7 m/s		+19

30 September, Tuesday. day, 19°; night, 14°; partly cloudy

1 October, wed

	755 mmHg		76%
	5.9 m/s		+19

1 October, Wednesday. day, 19°; night, 14°; rain

2 October, thu

	754 mmHg		76%
	6.6 m/s		+18

2 October, Thursday. day, 18°; night, 14°; rain

3 October, fri

	756 mmHg		74%
	6.8 m/s		+18

3 October, Friday. day, 17°; night, 13°; rain

4 October, sat

	757 mmHg		74%
	6.2 m/s		+18

4 October, Saturday. day, 17°; night, 12°; rain

Average data for 10 years

Sapporo September

5

sunny days

13

days with precipitation

9

cloudy days

5 sunny days; 13 days with precipitation; 9 cloudy days;

77

%

air humidity

3.5

m/s

WindS

135

mm of precipitation

(11% of annual average)

+21

°C

Water temperature

air humidity 77%; 135 millimeters of precipitation (11% of annual average); Wind southerly 3.5 Meters per second; Water temperature +21°

Weather graphs for September

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

SW

S

S

S

S

S

S

SW

S

S

S

SW

SW

SW

S

S

S

SW

SW

SW

SW

S

S

S

SW

SW

SW

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

Korsakov
Aomori
Akita
Hakodate
Shirahama
Wakkanai
Asahikawa
Aniva
Taranay

Cities with similar weather in September

Budapest
Vienna
Kishinev
Beltsi
Sofia
Hévíz
Bratislava
Edinets
Soroki

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

In September, the weather in Sapporo is typically warm. Average daily high temperature in September is about 21 degrees above zero. On average, Sapporo has 13 rainy, 9 partly cloudy, 5 sunny, and 3 cloudy days in September. The rains are usually heavy.

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