At this moment warmest sea in Gulf of Thailand was observed in the following locations: Taling Ngam Beach, Phangan, Ko Phangan.
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 |
July 2025 | August 2025 |
|---|---|---|---|
| Taling Ngam Beach | 87.8°F | 85.2°F | 85.5°F |
| Phangan | 87.8°F | 85.2°F | 85.4°F |
| Ko Phangan | 87.6°F | 85.2°F | 85.4°F |
| Samui | 87.4°F | 85.2°F | 85.5°F |
| Mae Nam Beach | 87.4°F | 85.2°F | 85.4°F |
| Bo Phut Beach | 87.4°F | 85.2°F | 85.4°F |
| Choeng Mon Beach | 87.3°F | 85.2°F | 85.4°F |
| Chaweng Beach | 87.3°F | 85.3°F | 85.5°F |
| Cha-am | 87.3°F | 85.5°F | 86.0°F |
| Ko Li Pe | 87.1°F | 86.8°F | 86.7°F |
| Surat Thani | 87.1°F | 84.9°F | 85.3°F |
| Lamai Beach | 87.1°F | 85.3°F | 85.6°F |
| Koh Lanta | 86.9°F | 86.2°F | 86.2°F |
| Tao | 86.9°F | 85.2°F | 85.4°F |
| Hua Hin | 86.7°F | 85.1°F | 85.5°F |
| Bangkok | 86.7°F | 85.1°F | 85.3°F |
| Koh Lan | 86.7°F | 85.3°F | 85.5°F |
| Pattaya | 86.7°F | 85.2°F | 85.4°F |
| Jomtien | 86.7°F | 85.2°F | 85.4°F |
| Pattani | 86.7°F | 86.6°F | 86.2°F |
| Narathiwat | 86.7°F | 86.4°F | 86.3°F |
| Hat Yai | 86.5°F | 86.3°F | 86.6°F |
| Rayong | 86.2°F | 85.2°F | 85.2°F |
| Samet | 86.2°F | 85.0°F | 85.3°F |
| Koh Chang | 86.2°F | 84.7°F | 85.1°F |
| Trat | 86.2°F | 84.5°F | 85.1°F |
| Koh Kong | 86.0°F | 84.2°F | 84.8°F |
| Ko Mak | 85.8°F | 84.6°F | 85.0°F |
| Koh Kood | 85.8°F | 84.5°F | 85.0°F |
| Prachuap Khiri Khan | 85.6°F | 84.2°F | 84.5°F |
| Ko Wai | 85.6°F | 84.6°F | 85.0°F |
| Koh Rong | 85.5°F | 84.3°F | 85.2°F |
| Koh Dek Koule | 85.5°F | 84.3°F | 85.1°F |
| Sihanoukville | 85.5°F | 84.4°F | 85.1°F |
| Chumphon | 85.3°F | 84.4°F | 84.7°F |
| Phu Quoc | 85.3°F | 84.3°F | 85.1°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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