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September weather forecast in Singapore

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

	755 mmHg		85%
	3.7 m/s		+29

31 August, Sunday. day, 30°; night, 25°; rain

1 September, mon

	755 mmHg		86%
	3.8 m/s		+29

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

2 September, tue

	755 mmHg		85%
	3.7 m/s		+30

2 September, Tuesday. day, 29°; night, 25°; rain

3 September, wed

	755 mmHg		85%
	3.8 m/s		+30

3 September, Wednesday. day, 29°; night, 25°; rain

4 September, thu

	755 mmHg		86%
	3.8 m/s		+29

4 September, Thursday. day, 29°; night, 24°; rain

5 September, fri

	755 mmHg		85%
	3.9 m/s		+30

5 September, Friday. day, 29°; night, 25°; rain

6 September, sat

	755 mmHg		86%
	3.7 m/s		+30

6 September, Saturday. day, 29°; night, 25°; rain

7 September, sun

	755 mmHg		85%
	3.8 m/s		+29

7 September, Sunday. day, 29°; night, 25°; overcast

8 September, mon

	756 mmHg		85%
	3.7 m/s		+29

8 September, Monday. day, 29°; night, 25°; rain

9 September, tue

	755 mmHg		86%
	3.7 m/s		+29

9 September, Tuesday. day, 29°; night, 24°; rain

10 September, wed

	755 mmHg		86%
	3.7 m/s		+29

10 September, Wednesday. day, 29°; night, 25°; rain

11 September, thu

	755 mmHg		85%
	3.8 m/s		+29

11 September, Thursday. day, 30°; night, 25°; partly cloudy

12 September, fri

	755 mmHg		85%
	3.7 m/s		+30

12 September, Friday. day, 30°; night, 25°; rain

13 September, sat

	755 mmHg		85%
	3.9 m/s		+30

13 September, Saturday. day, 30°; night, 25°; rain

14 September, sun

	755 mmHg		86%
	3.7 m/s		+30

14 September, Sunday. day, 29°; night, 25°; rain

15 September, mon

	755 mmHg		85%
	3.8 m/s		+30

15 September, Monday. day, 29°; night, 25°; rain

16 September, tue

	755 mmHg		84%
	3.7 m/s		+30

16 September, Tuesday. day, 30°; night, 25°; rain

17 September, wed

	755 mmHg		85%
	3.8 m/s		+30

17 September, Wednesday. day, 30°; night, 25°; overcast

18 September, thu

	755 mmHg		86%
	3.7 m/s		+30

18 September, Thursday. day, 30°; night, 25°; rain

19 September, fri

	755 mmHg		86%
	3.8 m/s		+30

19 September, Friday. day, 30°; night, 25°; rain

20 September, sat

	755 mmHg		85%
	3.7 m/s		+30

20 September, Saturday. day, 30°; night, 25°; overcast

21 September, sun

	755 mmHg		85%
	3.7 m/s		+30

21 September, Sunday. day, 30°; night, 24°; rain

22 September, mon

	755 mmHg		85%
	3.6 m/s		+30

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

23 September, tue

	755 mmHg		85%
	3.5 m/s		+30

23 September, Tuesday. day, 30°; night, 24°; rain

24 September, wed

	755 mmHg		85%
	3.6 m/s		+30

24 September, Wednesday. day, 30°; night, 25°; rain

25 September, thu

	755 mmHg		86%
	3.4 m/s		+30

25 September, Thursday. day, 29°; night, 25°; rain

26 September, fri

	755 mmHg		86%
	3.6 m/s		+30

26 September, Friday. day, 30°; night, 24°; rain

27 September, sat

	755 mmHg		85%
	3.4 m/s		+30

27 September, Saturday. day, 30°; night, 25°; rain

28 September, sun

	755 mmHg		85%
	3.3 m/s		+30

28 September, Sunday. day, 30°; night, 25°; overcast

29 September, mon

	755 mmHg		85%
	3.3 m/s		+30

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

30 September, tue

	755 mmHg		86%
	3.4 m/s		+30

30 September, Tuesday. day, 29°; night, 24°; rain

1 October, wed

	755 mmHg		86%
	3.4 m/s		+30

1 October, Wednesday. day, 30°; night, 25°; rain

2 October, thu

	755 mmHg		85%
	3.3 m/s		+30

2 October, Thursday. day, 30°; night, 25°; rain

3 October, fri

	755 mmHg		86%
	3.5 m/s		+30

3 October, Friday. day, 30°; night, 25°; rain

4 October, sat

	755 mmHg		85%
	3.5 m/s		+30

4 October, Saturday. day, 30°; night, 24°; rain

Average data for 10 years

Singapore September

0

sunny days

25

days with precipitation

17

cloudy days

0 sunny days; 25 days with precipitation; 17 cloudy days;

85

%

air humidity

2.2

m/s

WindS

188

mm of precipitation

(7% of annual average)

+30

°C

Water temperature

air humidity 85%; 188 millimeters of precipitation (7% of annual average); Wind southerly 2.2 Meters per second; Water temperature +30°

Weather graphs for September

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

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S

S

S

S

S

S

S

S

S

S

S

S

S

S

S

S

S

S

S

S

S

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

Kuala Lumpur
Dumai
Johor Bahru
Kuantan
Tioman
Batam
Shah Alam
Sepang
Pekan Baru

Cities with similar weather in September

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

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

In September, the weather in Singapore is typically hot. Average daily high temperature in September is about 30 degrees above zero. On average, Singapore has 25 rainy, 4 cloudy, and 1 partly cloudy day in September. The rains are usually heavy. September as well as January, February, March, and April is considered the most uncomfortable time to visit Singapore.

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