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September weather forecast in Hongseong

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

	750 mmHg		79%
	4.9 m/s		+25

31 August, Sunday. day, 27°; night, 21°; clear

1 September, mon

	751 mmHg		78%
	4.9 m/s		+24

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

2 September, tue

	751 mmHg		79%
	4.5 m/s		+24

2 September, Tuesday. day, 26°; night, 21°; rain

3 September, wed

	751 mmHg		78%
	3.9 m/s		+25

3 September, Wednesday. day, 27°; night, 21°; partly cloudy

4 September, thu

	751 mmHg		77%
	4.19 m/s		+24

4 September, Thursday. day, 27°; night, 21°; overcast

5 September, fri

	751 mmHg		79%
	4.4 m/s		+24

5 September, Friday. day, 26°; night, 20°; rain

6 September, sat

	750 mmHg		79%
	4.8 m/s		+24

6 September, Saturday. day, 25°; night, 20°; rain

7 September, sun

	751 mmHg		77%
	5 m/s		+24

7 September, Sunday. day, 26°; night, 20°; clear

8 September, mon

	752 mmHg		77%
	3.8 m/s		+24

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

9 September, tue

	753 mmHg		79%
	3.8 m/s		+24

9 September, Tuesday. day, 25°; night, 20°; partly cloudy

10 September, wed

	753 mmHg		78%
	4.19 m/s		+24

10 September, Wednesday. day, 26°; night, 20°; overcast

11 September, thu

	753 mmHg		78%
	4 m/s		+23

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

12 September, fri

	753 mmHg		78%
	4.3 m/s		+23

12 September, Friday. day, 25°; night, 20°; overcast

13 September, sat

	754 mmHg		77%
	4.4 m/s		+23

13 September, Saturday. day, 25°; night, 19°; partly cloudy

14 September, sun

	753 mmHg		77%
	4.19 m/s		+23

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

15 September, mon

	753 mmHg		75%
	4.69 m/s		+23

15 September, Monday. day, 26°; night, 19°; clear

16 September, tue

	752 mmHg		75%
	4.9 m/s		+23

16 September, Tuesday. day, 25°; night, 19°; rain

17 September, wed

	752 mmHg		75%
	4.69 m/s		+23

17 September, Wednesday. day, 25°; night, 19°; rain

18 September, thu

	753 mmHg		74%
	4.6 m/s		+23

18 September, Thursday. day, 25°; night, 18°; clear

19 September, fri

	753 mmHg		73%
	4.5 m/s		+23

19 September, Friday. day, 25°; night, 18°; clear

20 September, sat

	753 mmHg		74%
	5 m/s		+22

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

21 September, sun

	754 mmHg		74%
	4.6 m/s		+22

21 September, Sunday. day, 23°; night, 17°; clear

22 September, mon

	755 mmHg		71%
	4.19 m/s		+22

22 September, Monday. day, 24°; night, 17°; clear

23 September, tue

	755 mmHg		73%
	4.1 m/s		+22

23 September, Tuesday. day, 24°; night, 17°; clear

24 September, wed

	755 mmHg		74%
	3.8 m/s		+22

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

25 September, thu

	756 mmHg		73%
	3.7 m/s		+22

25 September, Thursday. day, 24°; night, 17°; partly cloudy

26 September, fri

	756 mmHg		73%
	4 m/s		+22

26 September, Friday. day, 24°; night, 17°; partly cloudy

27 September, sat

	755 mmHg		73%
	4.1 m/s		+22

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

28 September, sun

	755 mmHg		72%
	4.19 m/s		+21

28 September, Sunday. day, 23°; night, 17°; overcast

29 September, mon

	755 mmHg		74%
	4.1 m/s		+21

29 September, Monday. day, 23°; night, 17°; partly cloudy

30 September, tue

	754 mmHg		76%
	4.3 m/s		+21

30 September, Tuesday. day, 23°; night, 16°; clear

1 October, wed

	754 mmHg		75%
	4.69 m/s		+21

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

2 October, thu

	755 mmHg		72%
	5.3 m/s		+21

2 October, Thursday. day, 22°; night, 15°; rain

3 October, fri

	756 mmHg		71%
	4.8 m/s		+21

3 October, Friday. day, 21°; night, 15°; rain

4 October, sat

	757 mmHg		68%
	4.69 m/s		+21

4 October, Saturday. day, 21°; night, 15°; overcast

Average data for 10 years

Hongseong September

9

sunny days

9

days with precipitation

8

cloudy days

9 sunny days; 9 days with precipitation; 8 cloudy days;

76

%

air humidity

2.9

m/s

WindS

140

mm of precipitation

(13% of annual average)

+23

°C

Water temperature

air humidity 76%; 140 millimeters of precipitation (13% of annual average); Wind southerly 2.9 Meters per second; Water temperature +23°

Weather graphs for September

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

S

S

S

S

S

S

S

SW

S

S

S

S

S

S

S

S

S

S

S

S

SE

SE

S

S

S

S

S

S

S

S

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

Seoul
Busan
Pyongyang
Jeju
Incheon
Wonsan
Geoje
Ansan
Ulsan

Cities with similar weather in September

Kemer
Barcelona
Rome
Baku
Batumi
Budva
Heraklion
Venice
Thessaloniki

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

In September, the weather in Hongseong is typically warm. Average daily high temperature in September is about 25 degrees above zero. On average, Hongseong has 9 rainy, 9 sunny, 7 partly cloudy, and 5 cloudy days in September. The rains are usually heavy.

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