In October warmest sea in Gulf of Thailand is usually observed in the following locations: Ko Wai, Ko Mak, Koh Chang.
Table below shows the average sea water temperature for marine resorts of Gulf of Thailand in October for the last three years.
| Place name | October 2026 | October 2025 | October 2024 |
|---|---|---|---|
| Ko Wai | 86.5°F | 84.9°F | 86.1°F |
| Ko Mak | 86.4°F | 84.9°F | 85.9°F |
| Koh Chang | 86.4°F | 84.9°F | 86.4°F |
| Hua Hin | 86.4°F | 85.3°F | 86.6°F |
| Samet | 86.4°F | 85.1°F | 86.5°F |
| Koh Kood | 86.4°F | 84.6°F | 85.8°F |
| Cha-am | 86.3°F | 85.5°F | 86.6°F |
| Rayong | 86.3°F | 84.9°F | 86.5°F |
| Koh Lan | 86.0°F | 84.9°F | 86.4°F |
| Pattaya | 85.9°F | 84.7°F | 86.1°F |
| Jomtien | 85.9°F | 84.7°F | 86.1°F |
| Trat | 85.9°F | 84.8°F | 86.1°F |
| Koh Kong | 85.9°F | 84.4°F | 85.4°F |
| Bangkok | 85.9°F | 84.8°F | 86.0°F |
| Koh Rong | 85.8°F | 84.9°F | 85.9°F |
| Prachuap Khiri Khan | 85.6°F | 84.9°F | 86.1°F |
Charts below show average sea water temperature for Gulf of Thailand resorts with the warmest sea in October.
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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