Ko Samui Weather & When to Go

Ko Samui Weather
Travelers planning a trip to Ko Samui any time soon should be equipped about the weather of Ko Samui to make the best of their vacation. Ko Samui weather is quite different from the neighboring island resort of Phuket. Since Ko Samui is located in the Gulf of Thailand and faces the east, its weather is modulated by the Northeast monsoons.

January - February is the cool season on Samui island, temperatures average a pleasant 79°F / 26°C. This is generally the best time to visit as it is not too hot.

March - May is the hot season, the temperature starts warming up, it has been known to reach 40°C There is generally less rain on Koh Samui during these months.

June - September generally speaking, between these months, most days will be filled with sun, except for the occasional downpour, which usually doesn't last long.

October - December frequent showers (not monsoons) come in October, and last until sometime around mid December, when the Samui weather generally clears up with extended periods of dry and often sunny weather. Water sports enthusiasts should note that the sea can get rough at this time, and visibility can be affected.

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