The Thailand resorts with the warmest sea water temperature in January are Ko Wai, Koh Chang and Ko Mak.
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 2020 | January 2019 | January 2018 |
|---|---|---|---|
| Ko Wai | 88.4°F | 87.3°F | 86.0°F |
| Koh Chang | 88.4°F | 87.1°F | 86.0°F |
| Ko Mak | 88.4°F | 87.3°F | 86.0°F |
| Koh Kood | 88.3°F | 87.4°F | 86.0°F |
| Trat | 87.9°F | 87.1°F | 85.9°F |
| Rayong | 87.8°F | 87.0°F | 85.0°F |
| Samet | 87.6°F | 87.0°F | 85.1°F |
| Similan | 87.3°F | 87.7°F | 87.3°F |
| Mai Khao Beach | 87.3°F | 87.3°F | 87.4°F |
| Nai Yang Beach | 87.3°F | 87.3°F | 87.4°F |
| Chumphon | 87.2°F | 86.3°F | 84.9°F |
| Phuket | 87.2°F | 87.3°F | 87.3°F |
| Koh Lanta | 87.2°F | 87.0°F | 87.1°F |
| Bang Tao Beach | 87.1°F | 87.3°F | 87.4°F |
| Surin Beach | 87.1°F | 87.3°F | 87.4°F |
| Kamala Beach | 87.1°F | 87.3°F | 87.4°F |
| Koh Lan | 87.1°F | 86.7°F | 84.2°F |
| Kalim Beach | 87.0°F | 87.3°F | 87.4°F |
| Khao Lak | 87.0°F | 87.5°F | 87.5°F |
| Tao | 87.0°F | 86.5°F | 85.0°F |
| Jomtien | 87.0°F | 86.6°F | 84.2°F |
| Pattaya | 86.9°F | 86.6°F | 84.2°F |
| Taling Ngam Beach | 86.9°F | 86.5°F | 85.3°F |
| Lamai Beach | 86.9°F | 86.5°F | 85.5°F |
| Samui | 86.9°F | 86.5°F | 85.4°F |
| Chaweng Beach | 86.9°F | 86.5°F | 85.4°F |
| Phangan | 86.9°F | 86.5°F | 85.2°F |
| Mae Nam Beach | 86.9°F | 86.5°F | 85.3°F |
| Bo Phut Beach | 86.9°F | 86.5°F | 85.3°F |
| Ko Phangan | 86.9°F | 86.5°F | 85.2°F |
| Patong Beach | 86.9°F | 87.3°F | 87.4°F |
| Choeng Mon Beach | 86.9°F | 86.5°F | 85.4°F |
| Hat Yai | 86.8°F | 86.7°F | 86.2°F |
| Cape Panwa | 86.7°F | 87.1°F | 87.2°F |
| Karon Beach | 86.7°F | 87.3°F | 87.4°F |
| Kata Beach | 86.7°F | 87.3°F | 87.4°F |
| Krabi | 86.6°F | 86.7°F | 87.0°F |
| Phi Phi | 86.6°F | 87.1°F | 87.2°F |
| Nai Harn Beach | 86.6°F | 87.3°F | 87.4°F |
| Rawai Beach | 86.6°F | 87.3°F | 87.4°F |
| Prachuap Khiri Khan | 86.4°F | 85.5°F | 83.6°F |
| Bangkok | 86.4°F | 85.3°F | 83.8°F |
| Cha-am | 86.4°F | 85.1°F | 83.1°F |
| Pattani | 86.3°F | 86.4°F | 85.6°F |
| Hua Hin | 86.2°F | 85.1°F | 83.0°F |
| Narathiwat | 86.2°F | 86.5°F | 85.5°F |
| Ko Li Pe | 86.1°F | 87.9°F | 87.7°F |
| Surat Thani | 85.7°F | 85.4°F | 85.6°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°
| Bangkok |  |
+80 |
| Chumphon |  |
+82 |
| Hua Hin |  |
+82 |
| Koh Chang |  |
+84 |
| Krabi |  |
+82 |
| Narathiwat | |
+80 |
| Pattani | |
+78 |
| Pattaya | |
+84 |
| Phi Phi | |
+88 |
| Phuket | |
+84 |
| Prachuap Khiri Khan | |
+82 |
| Rayong |  |
+82 |
| Samet | |
+84 |
| Samui | |
+88 |
| Surat Thani | |
+80 |
