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September weather forecast in Sanya

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

	718 mmHg		86%
	2.8 m/s		+31

31 August, Sunday. day, 30°; night, 23°; rain

1 September, mon

	718 mmHg		86%
	2.7 m/s		+30

1 September, Monday. day, 30°; night, 24°; rain

2 September, tue

	718 mmHg		87%
	2.8 m/s		+31

2 September, Tuesday. day, 30°; night, 23°; rain

3 September, wed

	718 mmHg		87%
	2.7 m/s		+30

3 September, Wednesday. day, 29°; night, 23°; rain

4 September, thu

	718 mmHg		87%
	2.7 m/s		+31

4 September, Thursday. day, 30°; night, 23°; rain

5 September, fri

	718 mmHg		86%
	2.9 m/s		+31

5 September, Friday. day, 30°; night, 23°; rain

6 September, sat

	718 mmHg		87%
	3 m/s		+31

6 September, Saturday. day, 29°; night, 23°; rain

7 September, sun

	719 mmHg		88%
	2.9 m/s		+31

7 September, Sunday. day, 29°; night, 23°; rain

8 September, mon

	719 mmHg		88%
	2.9 m/s		+31

8 September, Monday. day, 29°; night, 23°; rain

9 September, tue

	719 mmHg		88%
	3.1 m/s		+30

9 September, Tuesday. day, 29°; night, 23°; rain

10 September, wed

	719 mmHg		87%
	2.9 m/s		+31

10 September, Wednesday. day, 29°; night, 23°; rain

11 September, thu

	719 mmHg		87%
	2.8 m/s		+31

11 September, Thursday. day, 29°; night, 23°; rain

12 September, fri

	719 mmHg		86%
	2.5 m/s		+31

12 September, Friday. day, 29°; night, 23°; rain

13 September, sat

	719 mmHg		87%
	2.7 m/s		+29

13 September, Saturday. day, 29°; night, 23°; rain

14 September, sun

	718 mmHg		86%
	2.9 m/s		+30

14 September, Sunday. day, 29°; night, 23°; rain

15 September, mon

	718 mmHg		86%
	2.7 m/s		+30

15 September, Monday. day, 29°; night, 23°; rain

16 September, tue

	718 mmHg		86%
	2.6 m/s		+30

16 September, Tuesday. day, 29°; night, 23°; rain

17 September, wed

	719 mmHg		86%
	2.8 m/s		+31

17 September, Wednesday. day, 29°; night, 23°; rain

18 September, thu

	719 mmHg		86%
	3.2 m/s		+31

18 September, Thursday. day, 29°; night, 23°; rain

19 September, fri

	719 mmHg		86%
	3 m/s		+31

19 September, Friday. day, 29°; night, 23°; partly cloudy

20 September, sat

	720 mmHg		85%
	2.9 m/s		+31

20 September, Saturday. day, 29°; night, 23°; rain

21 September, sun

	720 mmHg		85%
	2.6 m/s		+31

21 September, Sunday. day, 29°; night, 23°; clear

22 September, mon

	720 mmHg		85%
	2.7 m/s		+30

22 September, Monday. day, 29°; night, 23°; rain

23 September, tue

	720 mmHg		85%
	3 m/s		+31

23 September, Tuesday. day, 29°; night, 23°; rain

24 September, wed

	719 mmHg		86%
	3.3 m/s		+30

24 September, Wednesday. day, 28°; night, 23°; rain

25 September, thu

	719 mmHg		87%
	3.7 m/s		+30

25 September, Thursday. day, 28°; night, 23°; rain

26 September, fri

	720 mmHg		86%
	3.6 m/s		+31

26 September, Friday. day, 29°; night, 22°; clear

27 September, sat

	720 mmHg		85%
	2.9 m/s		+31

27 September, Saturday. day, 29°; night, 23°; clear

28 September, sun

	720 mmHg		85%
	3.1 m/s		+30

28 September, Sunday. day, 29°; night, 23°; rain

29 September, mon

	719 mmHg		85%
	3.2 m/s		+30

29 September, Monday. day, 29°; night, 23°; rain

30 September, tue

	720 mmHg		85%
	3.1 m/s		+30

30 September, Tuesday. day, 29°; night, 23°; rain

1 October, wed

	721 mmHg		85%
	2.9 m/s		+30

1 October, Wednesday. day, 29°; night, 23°; rain

2 October, thu

	720 mmHg		84%
	3.2 m/s		+29

2 October, Thursday. day, 29°; night, 22°; rain

3 October, fri

	720 mmHg		84%
	3.3 m/s		+29

3 October, Friday. day, 28°; night, 22°; rain

4 October, sat

	721 mmHg		85%
	3.2 m/s		+29

4 October, Saturday. day, 28°; night, 22°; rain

Average data for 10 years

Sanya September

3

sunny days

26

days with precipitation

16

cloudy days

3 sunny days; 26 days with precipitation; 16 cloudy days;

86

%

air humidity

1.7

m/s

WindSE

264

mm of precipitation

(17% of annual average)

+31

°C

Water temperature

air humidity 86%; 264 millimeters of precipitation (17% of annual average); Wind south-easterly 1.7 Meters per second; Water temperature +31°

Weather graphs for September

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

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S

S

S

S

S

S

S

SE

SE

SE

S

S

S

S

SE

SE

SE

SE

SE

SE

SE

SE

SE

SE

E

SE

SE

SE

SE

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

Da Nang
Dadonghai
Yalong Bay
Haikou
Ha Long
Hội An
Boao
Haiphong
Huế

Cities with similar weather in September

Pattaya
Nha Trang
Hurgada
Bangkok
Varadero
Havana
Cancun
Hong Kong
Boca Chica

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

In September, the weather in Sanya is typically hot. Average daily high temperature in September is about 29 degrees above zero. On average, Sanya has 26 rainy, 3 sunny, and 1 partly cloudy day in September. The rains are usually heavy. September as well as May, June, July, and August is considered the most uncomfortable time to visit Sanya.

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