At this moment warmest sea in Gulf of Thailand was observed in the following locations: Rayong, Trat, Samet.
You can find the full list of Gulf of Thailand marine locations in the table below. It shows current sea temperature values and averages for current and upcoming months.
| Place name | Current sea temp |
May 2025 | June 2025 |
|---|---|---|---|
| Rayong | 88.3°F | 87.9°F | 86.1°F |
| Trat | 88.0°F | 87.9°F | 85.6°F |
| Samet | 88.0°F | 88.0°F | 86.0°F |
| Cha-am | 87.8°F | 87.6°F | 86.4°F |
| Hat Yai | 87.8°F | 87.4°F | 86.8°F |
| Bangkok | 87.6°F | 87.3°F | 86.4°F |
| Koh Kong | 87.6°F | 87.5°F | 85.2°F |
| Hua Hin | 87.6°F | 87.7°F | 86.2°F |
| Koh Chang | 87.6°F | 87.7°F | 85.6°F |
| Jomtien | 87.6°F | 87.3°F | 86.1°F |
| Koh Kood | 87.4°F | 87.7°F | 85.6°F |
| Ko Mak | 87.4°F | 87.8°F | 85.6°F |
| Ko Wai | 87.4°F | 87.8°F | 85.7°F |
| Koh Lan | 87.4°F | 87.3°F | 86.2°F |
| Pattaya | 87.4°F | 87.3°F | 86.1°F |
| Pattani | 87.3°F | 87.1°F | 86.4°F |
| Sihanoukville | 87.1°F | 87.8°F | 85.5°F |
| Koh Dek Koule | 87.1°F | 87.8°F | 85.5°F |
| Koh Rong | 87.1°F | 87.9°F | 85.4°F |
| Lamai Beach | 87.1°F | 87.2°F | 86.2°F |
| Chaweng Beach | 87.1°F | 87.1°F | 86.2°F |
| Narathiwat | 87.1°F | 87.0°F | 86.5°F |
| Taling Ngam Beach | 86.9°F | 87.1°F | 86.1°F |
| Samui | 86.9°F | 87.1°F | 86.1°F |
| Choeng Mon Beach | 86.9°F | 87.1°F | 86.1°F |
| Phu Quoc | 86.7°F | 87.9°F | 85.6°F |
| Bo Phut Beach | 86.7°F | 87.1°F | 86.1°F |
| Mae Nam Beach | 86.7°F | 87.1°F | 86.1°F |
| Ko Li Pe | 86.7°F | 86.9°F | 86.3°F |
| Koh Lanta | 86.5°F | 86.6°F | 86.0°F |
| Ko Phangan | 86.4°F | 87.2°F | 86.0°F |
| Surat Thani | 86.4°F | 87.1°F | 85.8°F |
| Phangan | 86.2°F | 87.2°F | 86.0°F |
| Prachuap Khiri Khan | 86.2°F | 86.8°F | 85.3°F |
| Chumphon | 86.2°F | 87.2°F | 85.2°F |
| Tao | 85.5°F | 87.1°F | 85.8°F |
Charts below show average sea water temperature for Gulf of Thailand resorts with the warmest sea.
You can also check other months of the year to see sea temperature of Gulf of Thailand resorts at that time.
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