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September weather forecast in Rach Gia

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

	757 mmHg		84%
	5.2 m/s		+29

31 August, Sunday. day, 30°; night, 26°; rain

1 September, mon

	757 mmHg		85%
	5.1 m/s		+29

1 September, Monday. day, 30°; night, 26°; rain

2 September, tue

	757 mmHg		84%
	5.3 m/s		+29

2 September, Tuesday. day, 30°; night, 26°; overcast

3 September, wed

	757 mmHg		84%
	5.2 m/s		+29

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

4 September, thu

	757 mmHg		85%
	5.3 m/s		+29

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

5 September, fri

	757 mmHg		84%
	5.2 m/s		+29

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

6 September, sat

	757 mmHg		84%
	5.2 m/s		+29

6 September, Saturday. day, 30°; night, 26°; overcast

7 September, sun

	757 mmHg		85%
	5 m/s		+30

7 September, Sunday. day, 30°; night, 26°; rain

8 September, mon

	757 mmHg		85%
	4.9 m/s		+29

8 September, Monday. day, 30°; night, 25°; rain

9 September, tue

	757 mmHg		85%
	5 m/s		+29

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

10 September, wed

	757 mmHg		86%
	5.1 m/s		+29

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

11 September, thu

	757 mmHg		85%
	5.3 m/s		+29

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

12 September, fri

	757 mmHg		85%
	5.1 m/s		+29

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

13 September, sat

	757 mmHg		85%
	5.4 m/s		+29

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

14 September, sun

	756 mmHg		85%
	5.5 m/s		+29

14 September, Sunday. day, 30°; night, 25°; rain

15 September, mon

	756 mmHg		85%
	5.5 m/s		+29

15 September, Monday. day, 30°; night, 25°; rain

16 September, tue

	756 mmHg		86%
	5.4 m/s		+29

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

17 September, wed

	757 mmHg		86%
	5.3 m/s		+29

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

18 September, thu

	757 mmHg		86%
	4.9 m/s		+29

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

19 September, fri

	757 mmHg		86%
	4.9 m/s		+29

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

20 September, sat

	757 mmHg		86%
	4.8 m/s		+29

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

21 September, sun

	757 mmHg		85%
	4.6 m/s		+29

21 September, Sunday. day, 30°; night, 25°; rain

22 September, mon

	757 mmHg		86%
	4.4 m/s		+29

22 September, Monday. day, 30°; night, 25°; rain

23 September, tue

	757 mmHg		84%
	4.6 m/s		+29

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

24 September, wed

	757 mmHg		85%
	4.5 m/s		+29

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

25 September, thu

	757 mmHg		86%
	4.4 m/s		+29

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

26 September, fri

	757 mmHg		85%
	4.4 m/s		+29

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

27 September, sat

	757 mmHg		86%
	4.4 m/s		+29

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

28 September, sun

	757 mmHg		86%
	4.3 m/s		+29

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

29 September, mon

	757 mmHg		85%
	4.19 m/s		+29

29 September, Monday. day, 30°; night, 25°; rain

30 September, tue

	757 mmHg		85%
	4.3 m/s		+29

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

1 October, wed

	757 mmHg		85%
	4.19 m/s		+29

1 October, Wednesday. day, 31°; night, 25°; rain

2 October, thu

	757 mmHg		86%
	4 m/s		+29

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

3 October, fri

	757 mmHg		87%
	4 m/s		+29

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

4 October, sat

	757 mmHg		87%
	3.9 m/s		+29

4 October, Saturday. day, 30°; night, 25°; rain

Average data for 10 years

Rach Gia September

0

sunny days

28

days with precipitation

24

cloudy days

0 sunny days; 28 days with precipitation; 24 cloudy days;

85

%

air humidity

3.3

m/s

WindSW

284

mm of precipitation

(15% of annual average)

+29

°C

Water temperature

air humidity 85%; 284 millimeters of precipitation (15% of annual average); Wind south-westerly 3.3 Meters per second; Water temperature +29°

Weather graphs for September

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

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

W

W

W

SW

SW

SW

SW

SW

SW

SW

SW

SW

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

Phú Quốc
Phan Thiet
Ho Chi Minh
Dalat
Ko Chang
Phnom Penh
Siem Reap
Sihanoukville
Vũng Tàu

Cities with similar weather in September

Phuket
Male
Phan Thiet
Samui
Netanya
Colombo
Krabi
Puerto Plata
Kinshasa

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

In September, the weather in Rach Gia is typically hot. Average daily high temperature in September is about 30 degrees above zero. On average, Rach Gia has 28 rainy and 2 cloudy days in September. The rains are usually heavy. September as well as April, May, June, and July is considered the most uncomfortable time to visit Rach Gia.

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