At this moment warmest sea in Gulf of Thailand was observed in the following locations: Cha-am, Hat Yai, 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 |
June 2025 | July 2025 |
|---|---|---|---|
| Cha-am | 87.4°F | 86.4°F | 85.5°F |
| Hat Yai | 87.4°F | 86.8°F | 86.3°F |
| Samet | 87.3°F | 86.0°F | 85.0°F |
| Bangkok | 87.1°F | 86.4°F | 85.1°F |
| Ko Li Pe | 87.1°F | 86.3°F | 86.8°F |
| Koh Kood | 87.1°F | 85.6°F | 84.5°F |
| Narathiwat | 87.1°F | 86.5°F | 86.4°F |
| Hua Hin | 87.1°F | 86.2°F | 85.1°F |
| Koh Kong | 86.9°F | 85.2°F | 84.2°F |
| Ko Mak | 86.9°F | 85.6°F | 84.6°F |
| Koh Lan | 86.9°F | 86.2°F | 85.3°F |
| Koh Lanta | 86.7°F | 86.0°F | 86.2°F |
| Lamai Beach | 86.7°F | 86.2°F | 85.3°F |
| Pattaya | 86.7°F | 86.1°F | 85.2°F |
| Jomtien | 86.7°F | 86.1°F | 85.2°F |
| Taling Ngam Beach | 86.7°F | 86.1°F | 85.2°F |
| Koh Chang | 86.7°F | 85.6°F | 84.7°F |
| Ko Wai | 86.7°F | 85.7°F | 84.6°F |
| Bo Phut Beach | 86.5°F | 86.1°F | 85.2°F |
| Chaweng Beach | 86.5°F | 86.2°F | 85.3°F |
| Choeng Mon Beach | 86.5°F | 86.1°F | 85.2°F |
| Samui | 86.5°F | 86.1°F | 85.2°F |
| Mae Nam Beach | 86.5°F | 86.1°F | 85.2°F |
| Pattani | 86.5°F | 86.4°F | 86.6°F |
| Rayong | 86.5°F | 86.1°F | 85.2°F |
| Trat | 86.5°F | 85.6°F | 84.5°F |
| Ko Phangan | 86.4°F | 86.0°F | 85.2°F |
| Phangan | 86.4°F | 86.0°F | 85.2°F |
| Surat Thani | 86.4°F | 85.8°F | 84.9°F |
| Koh Dek Koule | 86.4°F | 85.5°F | 84.3°F |
| Sihanoukville | 86.4°F | 85.5°F | 84.4°F |
| Koh Rong | 86.2°F | 85.4°F | 84.3°F |
| Phu Quoc | 86.0°F | 85.6°F | 84.3°F |
| Tao | 85.8°F | 85.8°F | 85.2°F |
| Chumphon | 85.3°F | 85.2°F | 84.4°F |
| Prachuap Khiri Khan | 84.6°F | 85.3°F | 84.2°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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