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Sea temperature in Thailand in May
30°Ctropical · monthly average
The sea around Thailand averages 30°C in May. Warm enough for relaxed swimming with no wetsuit needed.
Monthly sea temperatures across the year
Best swim months
Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec
Warmest month
April (30°C)
Coolest month
January (27°C)
Best beaches in Thailand
Phuket
Patong Beach
Popular beach in Patong, Thailand.
Phuket
Kata Beach
Popular beach in Kata, Thailand.
Phuket
Karon Beach
Popular beach in Karon, Thailand.
Phuket
Surin Beach
Popular beach in Choeng Thale, Thailand.
Phuket
Kamala Beach
Popular beach in Kamala, Thailand.
Phuket
Nai Harn Beach
Popular beach in Rawai, Thailand.
Phuket
Freedom Beach
Popular beach in Patong, Thailand.
Krabi
Railay Beach
Popular beach in Krabi, Thailand.
Krabi
Ao Nang Beach
Popular beach in Krabi, Thailand.