Koh Samui

Koh Samui Weather in July

Average temperatures, rainfall, sunshine and the best places to visit in Koh Samui, Thailand in July.

Planning a trip to Koh Samui, Thailand this July? Here's what you need to know about the weather:

What to Expect in Koh Samui in July

Koh Samui, Thailand is a region in Thailand. July in Koh Samui generally has very warm temperatures, with precipitation levels ranging from moderate to high.

Temperatures

The average maximum temperatures are very warm and range from 30°C (86°F) in Chaweng Beach to 33°C (91°F) in Suratthani. Nighttime temperatures generally drop to 25°C (77°F) in Suratthani and 27°C (81°F) in Chaweng Beach. The temperatures mentioned for daytime and nighttime are general averages. However there can be days that surpass these temperatures. So equip yourself with clothing that can handle the potential heat.

For specific regional insights in Koh Samui, Thailand, refer to the map provided below.

Precipitation

In July, precipitation varies across different areas. From moderate rainfall in Laem Set Beach with an average of 88 mm (3.5 in) to high rainfall in Suratthani with 131 mm (5.2 in).

Average sunshine

Sunshine is moderately available across various locations. In Chaweng Beach, you can expect around 156 hours of sunlight in July, which gives a pleasant combination of sun and shade. For those who want maximum sunshine, our weather planner can point you toward the sunniest places on Earth.

Explore Koh Samui by month

Pick a month to see the average temperature, rainfall and sunshine in Koh Samui — and find the best time to visit. (based on Chaweng Beach)

Best Places to Visit in Koh Samui in July

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Koh Samui.

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in Koh Samui

What is the weather like in July for some of the most popular destinations in Koh Samui, Thailand?

Temperature range in Koh Samui (July)

Precipitation variation in Koh Samui (July)

Chaweng Beach

In July Chaweng Beach generally has very high temperatures with maximum daytime temperatures around 30°C (86°F), minimum nighttime temperatures around 27°C (81°F) and moderate monthly rainfall. So on average the conditions are pleasant that month.

June
July
August
Max temperature
31°C (88°F)
30°C (86°F)
30°C (86°F)
Min temperature
27°C (81°F)
27°C (81°F)
27°C (81°F)
Monthly sun hours
151 hours
156 hours
152 hours
Monthly rainfall
106 mm (4.2 in)
98 mm (3.9 in)
107 mm (4.2 in)
Monthly rainy days
16 days
17 days
17 days
Weather conditions

Lamai Beach

In July Lamai Beach generally has very high temperatures with maximum daytime temperatures around 30°C (86°F), minimum nighttime temperatures around 27°C (81°F) and moderate monthly rainfall. So on average the conditions are pleasant that month.

June
July
August
Max temperature
31°C (88°F)
30°C (86°F)
30°C (86°F)
Min temperature
27°C (81°F)
27°C (81°F)
27°C (81°F)
Monthly sun hours
151 hours
156 hours
152 hours
Monthly rainfall
99 mm (3.9 in)
92 mm (3.6 in)
99 mm (3.9 in)
Monthly rainy days
16 days
17 days
17 days
Weather conditions

Bophut

In July Bophut generally has very high temperatures with maximum daytime temperatures around 30°C (86°F), minimum nighttime temperatures around 27°C (81°F) and high monthly rainfall. So on average the conditions are tolerable that month.

June
July
August
Max temperature
31°C (88°F)
30°C (86°F)
30°C (86°F)
Min temperature
27°C (81°F)
27°C (81°F)
27°C (81°F)
Monthly sun hours
151 hours
156 hours
152 hours
Monthly rainfall
110 mm (4.3 in)
102 mm (4 in)
111 mm (4.4 in)
Monthly rainy days
16 days
17 days
17 days
Weather conditions

Choeng Mon Beach

In July Choeng Mon Beach generally has very high temperatures with maximum daytime temperatures around 30°C (86°F), minimum nighttime temperatures around 27°C (81°F) and high monthly rainfall. So on average the conditions are tolerable that month.

June
July
August
Max temperature
31°C (88°F)
30°C (86°F)
30°C (86°F)
Min temperature
27°C (81°F)
27°C (81°F)
27°C (81°F)
Monthly sun hours
151 hours
156 hours
152 hours
Monthly rainfall
113 mm (4.4 in)
105 mm (4.1 in)
113 mm (4.4 in)
Monthly rainy days
16 days
17 days
17 days
Weather conditions

Mae Nam Beach

In July Mae Nam Beach generally has very high temperatures with maximum daytime temperatures around 30°C (86°F), minimum nighttime temperatures around 27°C (81°F) and high monthly rainfall. So on average the conditions are tolerable that month.

June
July
August
Max temperature
31°C (88°F)
30°C (86°F)
30°C (86°F)
Min temperature
27°C (81°F)
27°C (81°F)
27°C (81°F)
Monthly sun hours
151 hours
156 hours
152 hours
Monthly rainfall
110 mm (4.3 in)
102 mm (4 in)
111 mm (4.4 in)
Monthly rainy days
16 days
17 days
17 days
Weather conditions

Is your destination not in the list? Have a look at all destinations in Koh Samui, in Thailand.

Popular cities in July

Day & night temperatures, rainfall and average weather in Koh Samui in July.

City Weather Day temp Night temp Rainfall
Chaweng Beach 30°C (86°F) 27°C (81°F) 98 mm (3.9 in)
Lamai Beach 30°C (86°F) 27°C (81°F) 92 mm (3.6 in)
Bophut 30°C (86°F) 27°C (81°F) 102 mm (4 in)
Choeng Mon Beach 30°C (86°F) 27°C (81°F) 105 mm (4.1 in)
Mae Nam Beach 30°C (86°F) 27°C (81°F) 102 mm (4 in)
Bangrak Beach 30°C (86°F) 27°C (81°F) 102 mm (4 in)

Koh Samui weather in July: frequently asked questions

What is the weather like in Koh Samui, Thailand in July?

Expect tolerable weather across Koh Samui, Thailand in July. The popular destination of Chaweng Beach averages 30°C (86°F) by day and 27°C (81°F) at night during this month.

What is the average temperature in Koh Samui, Thailand in July?

Average temperatures in Koh Samui, Thailand during July range from a nighttime low near 27°C (81°F) to a daytime high around 30°C (86°F) in Chaweng Beach.

Does Koh Samui, Thailand get a lot of rain in July?

Not particularly. Chaweng Beach averages just 98 mm (3.9 in) of rain in July, making it a mostly dry month for Koh Samui, Thailand.

Is July a Good Time to Visit Koh Samui, Thailand?

In our opinion, July is a good time to visit Koh Samui, Thailand with overall pleasant weather in Chaweng Beach.

On average, the best time to visit Koh Samui, Thailand is in January and February with generally perfect weather in Chaweng Beach. On the other hand, the months of October and November tend to have poor weather conditions.

Interested in more climate information?

We have much more information about the climate in Koh Samui.

Weather and climate has detailed information for every country in the world. Are you going to Thailand? Get detailed historical weather averages for many cities in Thailand.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.

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