At this moment warmest sea in Gulf of Thailand was observed in the following locations: Koh Chang, Ko Wai, Ko Mak.
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 |
November 2025 | December 2025 |
|---|---|---|---|
| Koh Chang | 88.7°F | 84.1°F | 82.4°F |
| Ko Wai | 88.3°F | 84.1°F | 82.3°F |
| Ko Mak | 88.0°F | 84.2°F | 82.6°F |
| Samet | 87.8°F | 83.8°F | 82.0°F |
| Koh Kood | 87.6°F | 84.4°F | 83.1°F |
| Trat | 87.6°F | 84.2°F | 82.2°F |
| Rayong | 87.6°F | 83.8°F | 81.9°F |
| Pattani | 87.4°F | 84.0°F | 82.6°F |
| Bangkok | 87.3°F | 83.1°F | 80.0°F |
| Jomtien | 87.3°F | 83.4°F | 81.1°F |
| Pattaya | 87.3°F | 83.4°F | 81.1°F |
| Koh Lan | 87.3°F | 83.4°F | 81.3°F |
| Sihanoukville | 87.1°F | 84.4°F | 82.9°F |
| Koh Dek Koule | 87.1°F | 84.4°F | 82.9°F |
| Narathiwat | 87.1°F | 83.9°F | 82.7°F |
| Phu Quoc | 86.9°F | 84.4°F | 83.2°F |
| Koh Rong | 86.9°F | 84.4°F | 83.1°F |
| Koh Kong | 86.7°F | 84.2°F | 83.3°F |
| Koh Lanta | 86.7°F | 84.6°F | 83.5°F |
| Hat Yai | 86.5°F | 84.5°F | 83.0°F |
| Cha-am | 86.5°F | 83.1°F | 80.3°F |
| Hua Hin | 86.5°F | 83.2°F | 80.4°F |
| Choeng Mon Beach | 86.4°F | 83.3°F | 81.8°F |
| Chaweng Beach | 86.4°F | 83.3°F | 81.9°F |
| Lamai Beach | 86.4°F | 83.3°F | 81.9°F |
| Ko Phangan | 86.4°F | 83.4°F | 81.4°F |
| Bo Phut Beach | 86.4°F | 83.3°F | 81.8°F |
| Mae Nam Beach | 86.4°F | 83.3°F | 81.8°F |
| Samui | 86.4°F | 83.3°F | 81.9°F |
| Phangan | 86.4°F | 83.4°F | 81.4°F |
| Taling Ngam Beach | 86.4°F | 83.3°F | 81.9°F |
| Tao | 86.4°F | 83.4°F | 81.4°F |
| Ko Li Pe | 86.4°F | 84.1°F | 84.1°F |
| Surat Thani | 86.2°F | 83.3°F | 81.1°F |
| Prachuap Khiri Khan | 85.6°F | 83.2°F | 80.2°F |
| Chumphon | 85.6°F | 83.6°F | 80.9°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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