Koh Samui in july: average Weather, Temperature and Climate, Where to go?
Weather on the island of Koh Samui in july 2025
In this section, you have access to the weather forecast for july for most popular cities in Ko Samui. These forecasts are statistics for july from weather reports for over 10 years. The percentage indicates the probability of having the weather mentioned.
Average weather in july in Chaweng Beach
good weather UV index: 7
Weather at 6am
85°F
Partly Cloudy
36% of time
24%
23%
9%
Weather at 12pm
86°F
Partly Cloudy
41% of time
36%
14%
6%
Weather at 6pm
85°F
Partly Cloudy
37% of time
22%
22%
13%
Weather at 3am
85°F
35%
29%
22%
11%
Where to go on the island of Koh Samui in july?
Where to go on the island of Koh Samui in july: destination map
perfect weather
good
tolerable
bad
very bad
Where should you go on the island of Koh Samui in july when it comes to the weather?
Remember:
The climate on the island of Koh Samui in july is good across the board.
You are lucky: It is not perfect, however, the weather in Ko Samui in july is, on average, good in Bophut, Koh Madsum, Lamai beach, Chaweng Beach, Lipa Noi, Maenam, Koh Taen and Koh Phaluai. I allows to appreciate vacation in these locations. And even why not take a little time to sunbathe!
If you do not go for the sun or the beach, but, for example for hiking, the cities of Bang Kao (Laem Sor beach), Choeng Mon and Nathon have a quite correct weather for that in july.
Climate on the island of Koh Samui in july
Climate in Chaweng Beach in july
In july, maximum temperature is 86°F and minimum temperature is 83°F (for an average temperature of 85°F). The climate is good in this city in july. With 6.4in over 11 days, you will experience some showers during your trip. But this is rather reasonably and it will not be continuous.
With a good climate, the month of july is a recommended month to go there in Ko Samui.
| July | |||
| Average temperature | 85°F | ||
| Highest temperature | 86°F | ||
| Lowest temperature | 83°F | ||
| Sea temperature | 86°F | ||
| Rainfall | 6.4in | ||
| Number of days with rainfall | 11 day(s) (35%) | ||
| Humidity | 78% | ||
| Daily sunshine hours | 11 | ||
| Cloud cover | 42% | ||
| Length of day | 12:37 | ||
| Our opinion at whereandwhen.net | good |
Climate in Bang Kao (Laem Sor beach) in july
In the month of july, maximum temperature is 86°F and minimum temperature is 83°F (for an average temperature of 85°F). The climate is quite enjoyable in this location in this month. With 6.4in over 11 days, you will experience some showers throughout your journey. But this is rather reasonably and you will not be too bothered by it.
With proper weather, the month of july is okay (but not the best time) for traveling in this locality in Ko Samui.
| July | |||
| Average temperature | 85°F | ||
| Highest temperature | 86°F | ||
| Lowest temperature | 83°F | ||
| Sea temperature | 86°F | ||
| Rainfall | 6.4in | ||
| Number of days with rainfall | 11 day(s) (35%) | ||
| Humidity | 78% | ||
| Daily sunshine hours | 11 | ||
| Cloud cover | 42% | ||
| Length of day | 12:38 | ||
| Our opinion at whereandwhen.net | good |
Climate in Bophut in july
In july, the mean temperature in Bophut is 85°F (maximum temperature is 86°F and minimum temperature is 83°F). The climate is nice there in july. With 6.4in over 11 days, rainfall can happen throughout your vacations. But this is rather reasonably and it will not be continuous.
With good weather conditions, the month of july is a good time to go in this city.
| July | |||
| Average temperature | 85°F | ||
| Highest temperature | 86°F | ||
| Lowest temperature | 83°F | ||
| Sea temperature | 86°F | ||
| Rainfall | 6.4in | ||
| Number of days with rainfall | 11 day(s) (35%) | ||
| Humidity | 78% | ||
| Daily sunshine hours | 11 | ||
| Cloud cover | 42% | ||
| Length of day | 12:38 | ||
| Our opinion at whereandwhen.net | good |
Climate in Choeng Mon in july
In the month of july, maximum temperature is 86°F and minimum temperature is 83°F (for an average temperature of 85°F). The climate is enjoyable around this city in this month. With 6.4in over 11 days, you risk getting wet slightly during your holidays. But this is reasonably and you will not be too bothered by it.
With a correct weather, the month of july is okay (but not the best time) for traveling in Choeng Mon.
| July | |||
| Average temperature | 85°F | ||
| Highest temperature | 86°F | ||
| Lowest temperature | 83°F | ||
| Sea temperature | 86°F | ||
| Rainfall | 6.4in | ||
| Number of days with rainfall | 11 day(s) (35%) | ||
| Humidity | 78% | ||
| Daily sunshine hours | 11 | ||
| Cloud cover | 42% | ||
| Length of day | 12:37 | ||
| Our opinion at whereandwhen.net | good |
Climate in Koh Madsum in july
In the month of july, the mean temperature in Koh Madsum is 85°F (maximum temperature is 86°F and minimum temperature is 83°F). The climate is quite pleasant around this city in july. With 6.4in over 11 days, you risk getting wet slightly for your holidays. But this is pretty moderate and you will not be too bothered by it.
With a good weather, the month of july is an advisable month to go in that area.
| July | |||
| Average temperature | 85°F | ||
| Highest temperature | 86°F | ||
| Lowest temperature | 83°F | ||
| Sea temperature | 86°F | ||
| Rainfall | 6.4in | ||
| Number of days with rainfall | 11 day(s) (35%) | ||
| Humidity | 78% | ||
| Daily sunshine hours | 11 | ||
| Cloud cover | 42% | ||
| Length of day | 12:37 | ||
| Our opinion at whereandwhen.net | good |
All cities on the island of Koh Samui in july
| Chaweng Beach in july | good weather |
| Bang Kao (Laem Sor beach) in july | good weather |
| Bophut in july | good weather |
| Choeng Mon in july | good weather |
| Koh Madsum in july | good weather |
| Koh Phaluai in july | tolerable weather |
| Koh Taen in july | good weather |
| Lamai beach in july | good weather |
| Lipa Noi in july | good weather |
| Maenam in july | good weather |
| Nathon in july | good weather |
Weather data for Koh Samui in july:
Weather data for Koh Samui in july 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.