At this moment warmest sea in Gulf of Thailand was observed in the following locations: Ko Li Pe, Koh Lanta, Hat Yai.
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 | 87.4°F | 86.7°F | 85.8°F |
| Koh Lanta | 86.9°F | 86.2°F | 84.9°F |
| Hat Yai | 86.9°F | 86.6°F | 86.0°F |
| Narathiwat | 86.5°F | 86.3°F | 85.9°F |
| Pattani | 86.2°F | 86.2°F | 85.5°F |
| Lamai Beach | 85.8°F | 85.6°F | 85.1°F |
| Taling Ngam Beach | 85.6°F | 85.5°F | 85.0°F |
| Chaweng Beach | 85.6°F | 85.5°F | 85.0°F |
| Choeng Mon Beach | 85.5°F | 85.4°F | 84.9°F |
| Bo Phut Beach | 85.5°F | 85.4°F | 84.9°F |
| Samui | 85.5°F | 85.5°F | 84.9°F |
| Mae Nam Beach | 85.5°F | 85.4°F | 84.9°F |
| Bangkok | 85.3°F | 85.3°F | 84.9°F |
| Ko Phangan | 85.1°F | 85.4°F | 84.7°F |
| Hua Hin | 85.1°F | 85.5°F | 85.2°F |
| Phangan | 85.1°F | 85.4°F | 84.7°F |
| Surat Thani | 85.1°F | 85.3°F | 84.6°F |
| Cha-am | 84.9°F | 86.0°F | 85.2°F |
| Koh Lan | 84.9°F | 85.5°F | 84.9°F |
| Pattaya | 84.9°F | 85.4°F | 84.8°F |
| Jomtien | 84.9°F | 85.4°F | 84.7°F |
| Samet | 84.9°F | 85.3°F | 84.3°F |
| Tao | 84.7°F | 85.4°F | 84.6°F |
| Rayong | 84.7°F | 85.2°F | 84.5°F |
| Trat | 84.7°F | 85.1°F | 84.2°F |
| Koh Rong | 84.7°F | 85.2°F | 84.1°F |
| Koh Kong | 84.7°F | 84.8°F | 83.7°F |
| Koh Dek Koule | 84.7°F | 85.1°F | 84.1°F |
| Sihanoukville | 84.7°F | 85.1°F | 84.1°F |
| Koh Chang | 84.6°F | 85.1°F | 84.4°F |
| Ko Wai | 84.6°F | 85.0°F | 84.3°F |
| Koh Kood | 84.6°F | 85.0°F | 84.2°F |
| Phu Quoc | 84.6°F | 85.1°F | 84.0°F |
| Ko Mak | 84.4°F | 85.0°F | 84.3°F |
| Prachuap Khiri Khan | 84.2°F | 84.5°F | 84.1°F |
| Chumphon | 84.0°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.
Popular places:
Name
°F
