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August weather forecast in Samui

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

27 July, sun

	756 mmHg		80%
	6.8 m/s		+30

27 July, Sunday. day, 28°; night, 27°; rain

28 July, mon

	756 mmHg		80%
	6.9 m/s		+30

28 July, Monday. day, 28°; night, 27°; rain

29 July, tue

	756 mmHg		80%
	7.3 m/s		+30

29 July, Tuesday. day, 28°; night, 27°; rain

30 July, wed

	756 mmHg		80%
	7.3 m/s		+30

30 July, Wednesday. day, 28°; night, 27°; overcast

31 July, thu

	756 mmHg		80%
	7.4 m/s		+30

31 July, Thursday. day, 28°; night, 27°; overcast

1 August, fri

	756 mmHg		80%
	7.4 m/s		+30

1 August, Friday. day, 28°; night, 27°; overcast

2 August, sat

	756 mmHg		80%
	7.5 m/s		+30

2 August, Saturday. day, 28°; night, 27°; rain

3 August, sun

	756 mmHg		80%
	7.7 m/s		+30

3 August, Sunday. day, 28°; night, 27°; rain

4 August, mon

	756 mmHg		80%
	7.6 m/s		+30

4 August, Monday. day, 28°; night, 27°; rain

5 August, tue

	756 mmHg		80%
	7.6 m/s		+29

5 August, Tuesday. day, 28°; night, 27°; overcast

6 August, wed

	756 mmHg		80%
	7.8 m/s		+29

6 August, Wednesday. day, 28°; night, 27°; rain

7 August, thu

	756 mmHg		79%
	7.7 m/s		+29

7 August, Thursday. day, 28°; night, 27°; rain

8 August, fri

	756 mmHg		80%
	7.4 m/s		+29

8 August, Friday. day, 28°; night, 27°; overcast

9 August, sat

	756 mmHg		80%
	7.2 m/s		+29

9 August, Saturday. day, 28°; night, 27°; partly cloudy

10 August, sun

	757 mmHg		80%
	6.9 m/s		+30

10 August, Sunday. day, 28°; night, 27°; clear

11 August, mon

	757 mmHg		80%
	6.9 m/s		+29

11 August, Monday. day, 29°; night, 27°; rain

12 August, tue

	757 mmHg		79%
	6.9 m/s		+30

12 August, Tuesday. day, 28°; night, 27°; overcast

13 August, wed

	757 mmHg		80%
	6.4 m/s		+30

13 August, Wednesday. day, 28°; night, 27°; clear

14 August, thu

	757 mmHg		79%
	6.4 m/s		+30

14 August, Thursday. day, 28°; night, 27°; partly cloudy

15 August, fri

	757 mmHg		79%
	6.2 m/s		+30

15 August, Friday. day, 28°; night, 27°; partly cloudy

16 August, sat

	757 mmHg		80%
	6.4 m/s		+30

16 August, Saturday. day, 28°; night, 27°; rain

17 August, sun

	756 mmHg		79%
	6.5 m/s		+30

17 August, Sunday. day, 28°; night, 27°; rain

18 August, mon

	757 mmHg		80%
	6.5 m/s		+30

18 August, Monday. day, 28°; night, 27°; rain

19 August, tue

	757 mmHg		80%
	6.9 m/s		+30

19 August, Tuesday. day, 28°; night, 26°; rain

20 August, wed

	757 mmHg		80%
	6.9 m/s		+30

20 August, Wednesday. day, 28°; night, 26°; rain

21 August, thu

	756 mmHg		80%
	6.9 m/s		+30

21 August, Thursday. day, 28°; night, 27°; rain

22 August, fri

	757 mmHg		81%
	6.9 m/s		+30

22 August, Friday. day, 28°; night, 26°; rain

23 August, sat

	757 mmHg		81%
	7 m/s		+30

23 August, Saturday. day, 28°; night, 27°; rain

24 August, sun

	757 mmHg		80%
	6.9 m/s		+30

24 August, Sunday. day, 28°; night, 26°; overcast

25 August, mon

	757 mmHg		80%
	7.1 m/s		+30

25 August, Monday. day, 28°; night, 27°; rain

26 August, tue

	757 mmHg		80%
	6.8 m/s		+30

26 August, Tuesday. day, 28°; night, 27°; rain

27 August, wed

	757 mmHg		81%
	6.8 m/s		+30

27 August, Wednesday. day, 28°; night, 26°; rain

28 August, thu

	757 mmHg		81%
	6.9 m/s		+30

28 August, Thursday. day, 28°; night, 26°; rain

29 August, fri

	757 mmHg		81%
	6.7 m/s		+30

29 August, Friday. day, 28°; night, 26°; rain

30 August, sat

	757 mmHg		81%
	6.4 m/s		+30

30 August, Saturday. day, 28°; night, 26°; rain

31 August, sun

	757 mmHg		81%
	6.4 m/s		+30

31 August, Sunday. day, 28°; night, 26°; rain

1 September, mon

	757 mmHg		80%
	6.2 m/s		+30

1 September, Monday. day, 28°; night, 27°; partly cloudy

2 September, tue

	757 mmHg		80%
	6.2 m/s		+30

2 September, Tuesday. day, 28°; night, 27°; overcast

3 September, wed

	757 mmHg		80%
	6.5 m/s		+30

3 September, Wednesday. day, 28°; night, 27°; rain

4 September, thu

	757 mmHg		81%
	6.7 m/s		+30

4 September, Thursday. day, 28°; night, 27°; rain

5 September, fri

	757 mmHg		81%
	6.6 m/s		+30

5 September, Friday. day, 28°; night, 26°; rain

6 September, sat

	757 mmHg		81%
	6.4 m/s		+30

6 September, Saturday. day, 28°; night, 27°; rain

Average data for 10 years

Samui August

2

sunny days

21

days with precipitation

23

cloudy days

2 sunny days; 21 days with precipitation; 23 cloudy days;

80

%

air humidity

5.4

m/s

WindSW

119

mm of precipitation

(7% of annual average)

+30

°C

Water temperature

air humidity 80%; 119 millimeters of precipitation (7% of annual average); Wind south-westerly 5.4 Meters per second; Water temperature +30°

Weather graphs for August

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

SW

SW

W

SW

W

W

W

W

W

SW

SW

SW

SW

SW

SW

W

SW

SW

SW

SW

W

W

W

W

W

W

SW

W

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

31

Daytime temperature

Night-time temperature

Cities near you

Phuket
Pattaya
Langkawi
Khao Lak
Krabi
Ko Chang
Hua Hin
Sihanoukville
Koh Lanta Yai

Cities with similar weather in August

Pattaya
Marmaris
Santo Domingo
Varadero
Punta Cana
Tekirova
Ko Chang
Boca Chica
Manila

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

In August, the weather in Samui is typically hot. Average daily high temperature in August is about 28 degrees above zero. On average, Samui has 21 rainy, 5 cloudy, 3 partly cloudy, and 2 sunny days in August. The rains are usually heavy. August as well as May, June, July, and September is considered the most uncomfortable time to visit Samui.

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