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September weather forecast in Tainan

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

30 August, sun

	756 mmHg		74%
	4.8 m/s		+31

30 August, Sunday. day, 29°; night, 27°; clear

31 August, mon

	758 mmHg		67%
	5 m/s		+31

31 August, Monday. day, 31°; night, 27°; clear

1 September, tue

	758 mmHg		66%
	4.5 m/s		+31

1 September, Tuesday. day, 31°; night, 27°; rain

2 September, wed

	758 mmHg		63%
	4 m/s		+31

2 September, Wednesday. day, 31°; night, 28°; rain

3 September, thu

	758 mmHg		62%
	3.5 m/s		+32

3 September, Thursday. day, 31°; night, 28°; rain

4 September, fri

	758 mmHg		63%
	3.5 m/s		+32

4 September, Friday. day, 32°; night, 28°; rain

5 September, sat

	759 mmHg		67%
	4 m/s		+32

5 September, Saturday. day, 31°; night, 28°; rain

6 September, sun

	759 mmHg		68%
	5.5 m/s		+31

6 September, Sunday. day, 31°; night, 28°; rain

7 September, mon

	759 mmHg		66%
	4.5 m/s		+32

7 September, Monday. day, 31°; night, 28°; partly cloudy

8 September, tue

	759 mmHg		64%
	5.6 m/s		+32

8 September, Tuesday. day, 32°; night, 28°; clear

9 September, wed

	760 mmHg		62%
	4.5 m/s		+32

9 September, Wednesday. day, 32°; night, 28°; partly cloudy

10 September, thu

	759 mmHg		61%
	4.5 m/s		+32

10 September, Thursday. day, 32°; night, 28°; rain

11 September, fri

	759 mmHg		60%
	4.4 m/s		+32

11 September, Friday. day, 32°; night, 29°; rain

12 September, sat

	758 mmHg		61%
	5 m/s		+32

12 September, Saturday. day, 32°; night, 28°; partly cloudy

13 September, sun

	757 mmHg		62%
	6 m/s		+32

13 September, Sunday. day, 32°; night, 28°; rain

14 September, mon

	756 mmHg		64%
	6.5 m/s		+31

14 September, Monday. day, 31°; night, 28°; rain

15 September, tue

	758 mmHg		64%
	6.1 m/s		+32

15 September, Tuesday. day, 32°; night, 28°; partly cloudy

16 September, wed

	759 mmHg		60%
	5 m/s		+32

16 September, Wednesday. day, 32°; night, 28°; partly cloudy

17 September, thu

	759 mmHg		57%
	4.8 m/s		+32

17 September, Thursday. day, 32°; night, 28°; rain

18 September, fri

	757 mmHg		57%
	6 m/s		+31

18 September, Friday. day, 32°; night, 28°; clear

19 September, sat

	758 mmHg		61%
	6.8 m/s		+31

19 September, Saturday. day, 31°; night, 28°; clear

20 September, sun

	757 mmHg		62%
	6.6 m/s		+31

20 September, Sunday. day, 32°; night, 28°; rain

21 September, mon

	759 mmHg		62%
	5.9 m/s		+32

21 September, Monday. day, 32°; night, 28°; partly cloudy

22 September, tue

	759 mmHg		61%
	4.4 m/s		+31

22 September, Tuesday. day, 32°; night, 28°; clear

23 September, wed

	759 mmHg		63%
	4.9 m/s		+31

23 September, Wednesday. day, 31°; night, 28°; overcast

24 September, thu

	759 mmHg		62%
	4 m/s		+32

24 September, Thursday. day, 32°; night, 28°; clear

25 September, fri

	759 mmHg		62%
	4.6 m/s		+32

25 September, Friday. day, 32°; night, 28°; partly cloudy

26 September, sat

	758 mmHg		61%
	5.1 m/s		+32

26 September, Saturday. day, 32°; night, 28°; partly cloudy

27 September, sun

	756 mmHg		62%
	8 m/s		+32

27 September, Sunday. day, 32°; night, 28°; clear

28 September, mon

	757 mmHg		68%
	8.6 m/s		+30

28 September, Monday. day, 30°; night, 28°; rain

29 September, tue

	760 mmHg		67%
	5.5 m/s		+31

29 September, Tuesday. day, 31°; night, 28°; clear

30 September, wed

	760 mmHg		62%
	3.7 m/s		+31

30 September, Wednesday. day, 32°; night, 28°; clear

1 October, thu

	760 mmHg		62%
	3.5 m/s		+31

1 October, Thursday. day, 31°; night, 28°; clear

2 October, fri

	760 mmHg		60%
	4.6 m/s		+31

2 October, Friday. day, 31°; night, 27°; clear

3 October, sat

	760 mmHg		60%
	3.7 m/s		+31

3 October, Saturday. day, 31°; night, 27°; partly cloudy

Average data for 10 years

Tainan September

8

sunny days

13

days with precipitation

9

cloudy days

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

62

%

air humidity

3.2

m/s

WindNW

185

mm of precipitation

(18% of annual average)

+32

°C

Water temperature

air humidity 62%; 185 millimeters of precipitation (18% of annual average); Wind north-westerly 3.2 Meters per second; Water temperature +32°

Weather graphs for September

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

S

S

SW

W

SW

S

S

SE

S

SW

W

N

N

NE

S

NW

NW

N

E

N

E

SE

E

NW

N

N

NW

W

W

NE

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

Taipei
Xiamen
Fuzhou
Kaohsiung
Zhangzhou
Quanzhou
Anbu
Taichung
Shantou

Cities with similar weather in September

Pattaya
Nha Trang
Sharm-El-Sheikh
Bangkok
Miami
Punta Cana
Singapore
Cancun
Hong Kong

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

In September, the weather in Tainan is typically hot. Average daily high temperature in September is about 32 degrees above zero. On average, Tainan has 13 rainy, 8 sunny, 8 partly cloudy, and 1 cloudy day in September. The rains are usually heavy. September as well as June, July, and August is considered the most uncomfortable time to visit Tainan.

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