Best time to swim on the island of Koh Samui Sea temperature by month

Do you want to go to the seaside on the island of Koh Samui? But when should you go to be sure to enjoy good sea water temperature and be able to swim for a long time? Now or another month during the year? On this page, find the sea temperature by month on the island of Koh Samui.

Swimming on the island of Koh Samui by month

Discover swimming conditions in detail on the island of Koh Samui by month below. Click on the links for each month to see details about the sea temperature in the cities of: Chaweng Beach, Koh Madsum, Koh Phaluai and Maenam.

Month sea temperature Details
82°F to 83°F Sea temperature
on the island of Koh Samui in january
83°F to 83°F Sea temperature
on the island of Koh Samui in february
84°F to 84°F Sea temperature
on the island of Koh Samui in march
86°F Sea temperature
on the island of Koh Samui in april
86°F to 87°F Sea temperature
on the island of Koh Samui in may
86°F to 86°F Sea temperature
on the island of Koh Samui in june
86°F to 86°F Sea temperature
on the island of Koh Samui in july
85°F to 85°F Sea temperature
on the island of Koh Samui in august
85°F to 85°F Sea temperature
on the island of Koh Samui in september
85°F to 85°F Sea temperature
on the island of Koh Samui in october
85°F to 85°F Sea temperature
on the island of Koh Samui in november
83°F to 83°F Sea temperature
on the island of Koh Samui in december

Where and when should you swim on the island of Koh Samui?

Chaweng Beach

Best time to swim in Chaweng Beach

It is possible to swim all year in Chaweng Beach.

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Koh Madsum

Best time to swim in Koh Madsum

It is possible to swim all year in Koh Madsum.

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Koh Phaluai

Best time to swim in Koh Phaluai

It is possible to swim all year in Koh Phaluai.

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Maenam

Best time to swim in Maenam

It is possible to swim all year in Maenam.

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Water temperatures on the island of Koh Samui over the entire year

On this chart, we show you the variation of the average sea water temperature on the island of Koh Samui for the cities of: Chaweng Beach, Koh Madsum, Koh Phaluai and Maenam.

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