Typical May highs at Lamai Beach reach about 89°F, with reliable beach weather most of the year. Lamai Beach is located in Ko Samui, Thailand.
Ko Samui, Thailand · live parking & conditions · updated June 19, 2026
In a typical year May is the warmest month here, with highs near 89°F, and it's reliably beach weather most of the year. Tap Lamai Beach on the map for live surf, wind, water temperature, UV and tide times.
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