Koh Samui in august: average Weather, Temperature and Climate, Where to go?
Weather on the island of Koh Samui in august 2025
Here, you have access to the weather forecast for the month of august for most popular cities in Ko Samui. These datas are probabilities for august from weather reports for over 10 years. The percentage indicates the probability of having the weather indicated.
Average weather in august in Chaweng Beach
good weather UV index: 7
Weather at 6am
83°F
Partly Cloudy
40% of time
27%
21%
8%
Weather at 12pm
85°F
Clear/Sunny
41% of time
37%
11%
7%
Weather at 6pm
86°F
Partly Cloudy
44% of time
21%
17%
11%
Weather at 3am
85°F
34%
28%
25%
9%
More information about the weather in Chaweng Beach in august
Where to go on the island of Koh Samui in august?
Where to go on the island of Koh Samui in august: destination map
perfect weather
good
tolerable
bad
very bad
Where should you go on the island of Koh Samui in august when it comes to the weather?
Remember:
The climate on the island of Koh Samui in august is good across the board.
Good news: It is not perfect, however, the weather in Ko Samui that month is good in Bophut, Koh Madsum, Lamai beach, Chaweng Beach, Lipa Noi, Maenam, Koh Taen and Koh Phaluai. I allows to savor tours in these cities. And even why not take a little time to enjoy the hotel pool!
If you do not go to spend your time in a lounger by the pool, but, for example for hiking, the cities of Bang Kao (Laem Sor beach), Choeng Mon and Nathon have a decent enough weather for this kind of activity in august.
Climate on the island of Koh Samui in august
Climate in Chaweng Beach in august
In august, the mean temperature in Chaweng Beach is 85°F (maximum temperature is 86°F and minimum temperature is 83°F). The climate is quite comfortable in that locality in this month. With 5.9in over 9 days, you will experience some showers during your stay. But this is pretty reasonably and you will not be too bothered by it.
With a good climate, the month of august is a good month to go in this locality.
| August | |||
| Average temperature | 85°F | ||
| Highest temperature | 86°F | ||
| Lowest temperature | 83°F | ||
| Sea temperature | 85°F | ||
| Rainfall | 5.9in | ||
| Number of days with rainfall | 9 day(s) (30%) | ||
| Humidity | 78% | ||
| Daily sunshine hours | 11 | ||
| Cloud cover | 39% | ||
| Length of day | 12:26 | ||
| Our opinion at whereandwhen.net | good |
Climate in Bang Kao (Laem Sor beach) in august
In august, maximum temperature is 86°F and minimum temperature is 83°F (for an average temperature of 85°F). The climate is quite good in that area in august. With 5.9in over 9 days, you will experience some showers during your holidays. But this is rather moderate and it is only of temporary showers.
With a correct climate, the month of august is okay (but not the best time) for traveling there.
| August | |||
| Average temperature | 85°F | ||
| Highest temperature | 86°F | ||
| Lowest temperature | 83°F | ||
| Sea temperature | 85°F | ||
| Rainfall | 5.9in | ||
| Number of days with rainfall | 9 day(s) (30%) | ||
| Humidity | 78% | ||
| Daily sunshine hours | 11 | ||
| Cloud cover | 39% | ||
| Length of day | 12:26 | ||
| Our opinion at whereandwhen.net | good |
Climate in Bophut in august
In the month of august, maximum temperature is 86°F and minimum temperature is 83°F (for an average temperature of 85°F). The climate is enjoyable in that locality in this month. With 5.9in over 9 days, rain may occur throughout your journey. But this is moderate and you will not be too bothered by it.
With a good weather, the month of august is a good month to go in Bophut in Ko Samui.
| August | |||
| Average temperature | 85°F | ||
| Highest temperature | 86°F | ||
| Lowest temperature | 83°F | ||
| Sea temperature | 85°F | ||
| Rainfall | 5.9in | ||
| Number of days with rainfall | 9 day(s) (30%) | ||
| Humidity | 78% | ||
| Daily sunshine hours | 11 | ||
| Cloud cover | 39% | ||
| Length of day | 12:26 | ||
| Our opinion at whereandwhen.net | good |
Climate in Choeng Mon in august
In the month of august, maximum temperature is 86°F and minimum temperature is 83°F (for an average temperature of 85°F). The climate is quite nice around this city in this month. With 5.9in over 9 days, rain may occur throughout your stay. But this is reasonably and you will not be too bothered by it.
With a correct climate, august is okay (but not good time) for traveling in Choeng Mon.
| August | |||
| Average temperature | 85°F | ||
| Highest temperature | 86°F | ||
| Lowest temperature | 83°F | ||
| Sea temperature | 85°F | ||
| Rainfall | 5.9in | ||
| Number of days with rainfall | 9 day(s) (30%) | ||
| Humidity | 78% | ||
| Daily sunshine hours | 11 | ||
| Cloud cover | 39% | ||
| Length of day | 12:26 | ||
| Our opinion at whereandwhen.net | good |
Climate in Koh Madsum in august
In the month of august, the mean temperature in Koh Madsum is 85°F (maximum temperature is 86°F and minimum temperature is 83°F). The climate is pleasant in that area in this month. With 5.9in over 9 days, you risk getting wet slightly throughout your stay. But this is rather moderate and you will not be too bothered by it.
With a good climate, august is a good month to go in Koh Madsum.
| August | |||
| Average temperature | 85°F | ||
| Highest temperature | 86°F | ||
| Lowest temperature | 83°F | ||
| Sea temperature | 85°F | ||
| Rainfall | 5.9in | ||
| Number of days with rainfall | 9 day(s) (30%) | ||
| Humidity | 78% | ||
| Daily sunshine hours | 11 | ||
| Cloud cover | 39% | ||
| Length of day | 12:25 | ||
| Our opinion at whereandwhen.net | good |
All cities on the island of Koh Samui in august
| Chaweng Beach in august | good weather |
| Bang Kao (Laem Sor beach) in august | good weather |
| Bophut in august | good weather |
| Choeng Mon in august | good weather |
| Koh Madsum in august | good weather |
| Koh Phaluai in august | tolerable weather |
| Koh Taen in august | good weather |
| Lamai beach in august | good weather |
| Lipa Noi in august | good weather |
| Maenam in august | good weather |
| Nathon in august | good weather |
Weather data for Koh Samui in august:
Weather data for Koh Samui in august is derived from an average of the weather forecast since 2009 on the island of Koh Samui. There is a margin of error and these forecasts are to be considered as general information only. The weather on the island of Koh Samui can vary slightly from year to year, but these predictions should limit surprises. So you can pack your bags and check when is the best time to go to Koh Samui.