The Thailand resorts with the warmest sea water temperature in January are Similan, Ko Li Pe and Khao Lak.
Below you can see a list of all popular Thailand resorts and information about sea water temperature in January for the last two years.
| Resort Name | January 2026 | January 2025 | January 2024 |
|---|---|---|---|
| Similan | 87.4°F | 87.1°F | 87.9°F |
| Ko Li Pe | 87.4°F | 87.9°F | 87.0°F |
| Khao Lak | 87.3°F | 87.4°F | 87.7°F |
| Nai Yang Beach | 87.2°F | 87.3°F | 87.8°F |
| Mai Khao Beach | 87.2°F | 87.3°F | 87.8°F |
| Surin Beach | 87.2°F | 87.3°F | 87.7°F |
| Kamala Beach | 87.2°F | 87.3°F | 87.7°F |
| Bang Tao Beach | 87.2°F | 87.3°F | 87.7°F |
| Kalim Beach | 87.1°F | 87.4°F | 87.7°F |
| Patong Beach | 87.1°F | 87.4°F | 87.6°F |
| Phuket | 87.1°F | 87.2°F | 87.7°F |
| Kata Beach | 87.0°F | 87.4°F | 87.6°F |
| Karon Beach | 87.0°F | 87.4°F | 87.6°F |
| Nai Harn Beach | 86.9°F | 87.4°F | 87.4°F |
| Rawai Beach | 86.9°F | 87.4°F | 87.4°F |
| Cape Panwa | 86.9°F | 87.3°F | 87.4°F |
| Phi Phi | 86.9°F | 87.3°F | 87.0°F |
| Krabi | 86.8°F | 86.9°F | 86.9°F |
| Koh Lanta | 86.7°F | 86.9°F | 86.9°F |
| Koh Kood | 86.2°F | 85.8°F | 88.2°F |
| Ko Mak | 86.1°F | 85.6°F | 88.2°F |
| Hat Yai | 85.9°F | 86.4°F | 87.0°F |
| Ko Wai | 85.9°F | 85.5°F | 88.1°F |
| Koh Chang | 85.8°F | 85.4°F | 88.0°F |
| Lamai Beach | 85.7°F | 85.2°F | 87.5°F |
| Chaweng Beach | 85.7°F | 85.2°F | 87.6°F |
| Taling Ngam Beach | 85.6°F | 84.9°F | 87.6°F |
| Samui | 85.6°F | 85.1°F | 87.6°F |
| Choeng Mon Beach | 85.6°F | 85.1°F | 87.5°F |
| Bo Phut Beach | 85.6°F | 85.0°F | 87.6°F |
| Mae Nam Beach | 85.6°F | 85.0°F | 87.6°F |
| Pattani | 85.3°F | 86.3°F | 86.6°F |
| Ko Phangan | 85.3°F | 84.9°F | 87.6°F |
| Phangan | 85.3°F | 84.8°F | 87.6°F |
| Narathiwat | 85.3°F | 86.4°F | 86.4°F |
| Surat Thani | 85.3°F | 85.0°F | 86.3°F |
| Trat | 85.1°F | 83.9°F | 87.6°F |
| Tao | 84.9°F | 84.3°F | 87.7°F |
| Chumphon | 84.7°F | 83.6°F | 87.3°F |
| Rayong | 84.7°F | 83.6°F | 87.6°F |
| Samet | 84.6°F | 83.9°F | 87.7°F |
| Koh Lan | 84.4°F | 83.1°F | 87.2°F |
| Jomtien | 84.3°F | 83.0°F | 87.1°F |
| Pattaya | 84.3°F | 83.0°F | 87.0°F |
| Prachuap Khiri Khan | 83.6°F | 81.3°F | 86.0°F |
| Hua Hin | 83.3°F | 81.3°F | 86.1°F |
| Cha-am | 83.2°F | 81.3°F | 86.1°F |
| Bangkok | 82.8°F | 81.5°F | 85.8°F |
Please see following sea water temperature averages charts for the warmest Thailand resorts in January.
You can also get the same information for the every other month of the year when the average sea water temperature is greater then 70°F.
Thailand Resorts:
NAME
F°
| Bang Tao Beach |  |
+80 |
| Bangkok | |
+86 |
| Hua Hin | |
+82 |
| Karon Beach | |
+80 |
| Kata Beach | |
+80 |
| Khao Lak | |
+82 |
| Ko Li Pe | |
+82 |
| Koh Chang |  |
+80 |
| Patong Beach | |
+80 |
| Pattaya | |
+84 |
| Phi Phi | |
+82 |
| Phuket | |
+80 |
| Samet | |
+82 |
| Samui |  |
+82 |
| Similan | |
+82 |
