Temperature in Koh Samui in May

Daytime highs, nighttime lows and the warmest cities in Koh Samui, Thailand this May.

Koh Samui, Thailand, a region in Thailand, experiences very high average maximum daytime temperatures in May, ranging from 31°C (88°F) in Chaweng Beach to 34°C (93°F) in Suratthani. Nighttime temperatures generally drop to 26°C (79°F) in Suratthani and 28°C (82°F) in Chaweng Beach.

What is the temperature of the different cities in Koh Samui, Thailand in May?

Discover the typical May temperatures for the most popular locations of Koh Samui on the map below. Detailed insights are just a click away.

Select a Month

Check the conditions for any month of the year.

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For a detailed overview over the year and the best time to visit Koh Samui, check out our Koh Samui's climate page.

See also: Koh Samui weather by month.

Best Places to Visit in Koh Samui in May

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

Conditions Temperatures Precipitation
Avg daytime high -5°C (23°F) cold → 32°C (90°F) hot

Marker color shows the average daytime high temperature in May: blue is cold, red is hot.

See all May weather averages, cities and regions in Koh Samui

Koh Samui temperatures in May: frequently asked questions

How hot does it get in Koh Samui, Thailand in May?

Chaweng Beach averages a daytime high of 31°C (88°F) in May, which is very high for Koh Samui, Thailand.

How cold does it get at night in Koh Samui, Thailand in May?

Average overnight lows in Koh Samui, Thailand during May sit near 28°C (82°F) in Chaweng Beach.

What is the warmest city in May in Koh Samui, Thailand?

Data insights from our comprehensive database indicate that Suratthani is the city with the highest warmth. Daytime peaks average near 34°C (93°F), while the nights are characterized by a low temperature close to 26°C (79°F).

What is the coldest city in May in Koh Samui, Thailand?

In our database, Chaweng Beach is the chilliest city in May in Koh Samui, Thailand. Daytime temperatures typically peak at 31°C (88°F), while the nighttime lows hover around 28°C (82°F).

How much sun does Koh Samui, Thailand get in May?

Chaweng Beach enjoys approximately 193 hours of sunshine, offering a mostly sunny climate that adds a pleasant and vibrant feel to the month.

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.

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