At this moment warmest sea in Gulf of Thailand was observed in the following locations: Ko Li Pe, Narathiwat, Pattani.
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 |
August 2025 | September 2025 |
|---|---|---|---|
| Ko Li Pe | 87.3°F | 86.7°F | 85.8°F |
| Narathiwat | 86.9°F | 86.3°F | 85.9°F |
| Pattani | 86.7°F | 86.2°F | 85.5°F |
| Hat Yai | 86.7°F | 86.6°F | 86.0°F |
| Bangkok | 86.4°F | 85.3°F | 84.9°F |
| Koh Lanta | 86.4°F | 86.2°F | 84.9°F |
| Surat Thani | 86.2°F | 85.3°F | 84.6°F |
| Pattaya | 86.0°F | 85.4°F | 84.8°F |
| Cha-am | 86.0°F | 86.0°F | 85.2°F |
| Lamai Beach | 86.0°F | 85.6°F | 85.1°F |
| Koh Lan | 86.0°F | 85.5°F | 84.9°F |
| Jomtien | 86.0°F | 85.4°F | 84.7°F |
| Taling Ngam Beach | 85.8°F | 85.5°F | 85.0°F |
| Samui | 85.8°F | 85.5°F | 84.9°F |
| Mae Nam Beach | 85.8°F | 85.4°F | 84.9°F |
| Bo Phut Beach | 85.8°F | 85.4°F | 84.9°F |
| Chaweng Beach | 85.8°F | 85.5°F | 85.0°F |
| Choeng Mon Beach | 85.8°F | 85.4°F | 84.9°F |
| Rayong | 85.8°F | 85.2°F | 84.5°F |
| Hua Hin | 85.6°F | 85.5°F | 85.2°F |
| Phangan | 85.6°F | 85.4°F | 84.7°F |
| Ko Phangan | 85.6°F | 85.4°F | 84.7°F |
| Samet | 85.6°F | 85.3°F | 84.3°F |
| Koh Chang | 85.5°F | 85.1°F | 84.4°F |
| Ko Wai | 85.1°F | 85.0°F | 84.3°F |
| Tao | 84.9°F | 85.4°F | 84.6°F |
| Trat | 84.9°F | 85.1°F | 84.2°F |
| Koh Rong | 84.9°F | 85.2°F | 84.1°F |
| Ko Mak | 84.7°F | 85.0°F | 84.3°F |
| Koh Kood | 84.6°F | 85.0°F | 84.2°F |
| Koh Kong | 84.6°F | 84.8°F | 83.7°F |
| Phu Quoc | 84.6°F | 85.1°F | 84.0°F |
| Prachuap Khiri Khan | 84.4°F | 84.5°F | 84.1°F |
| Koh Dek Koule | 84.4°F | 85.1°F | 84.1°F |
| Sihanoukville | 84.4°F | 85.1°F | 84.1°F |
| Chumphon | 84.2°F | 84.7°F | 83.9°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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