The Thailand resorts with the warmest sea water temperature in December are Ko Li Pe, Koh Kood and Phi Phi.
Below you can see a list of all popular Thailand resorts and information about sea water temperature in December for the last two years.
| Resort Name | December 2018 | December 2017 | December 2016 |
|---|---|---|---|
| Ko Li Pe | 89.3°F | 88.5°F | 88.5°F |
| Koh Kood | 88.9°F | 86.9°F | 88.2°F |
| Phi Phi | 88.8°F | 87.8°F | 88.0°F |
| Khao Lak | 88.8°F | 88.1°F | 88.3°F |
| Koh Chang | 88.8°F | 86.5°F | 87.8°F |
| Cape Panwa | 88.8°F | 87.9°F | 88.0°F |
| Similan | 88.7°F | 87.9°F | 88.0°F |
| Nai Harn Beach | 88.7°F | 88.1°F | 88.1°F |
| Samet | 88.7°F | 85.8°F | 87.5°F |
| Rawai Beach | 88.7°F | 88.1°F | 88.1°F |
| Patong Beach | 88.7°F | 88.1°F | 88.1°F |
| Kata Beach | 88.7°F | 88.1°F | 88.1°F |
| Karon Beach | 88.7°F | 88.1°F | 88.1°F |
| Phuket | 88.7°F | 88.0°F | 88.1°F |
| Kalim Beach | 88.7°F | 88.1°F | 88.1°F |
| Surin Beach | 88.7°F | 88.1°F | 88.1°F |
| Bang Tao Beach | 88.7°F | 88.1°F | 88.1°F |
| Kamala Beach | 88.7°F | 88.1°F | 88.1°F |
| Mai Khao Beach | 88.7°F | 88.0°F | 88.1°F |
| Nai Yang Beach | 88.7°F | 88.0°F | 88.1°F |
| Ko Mak | 88.6°F | 86.7°F | 88.1°F |
| Trat | 88.6°F | 86.5°F | 87.8°F |
| Ko Wai | 88.6°F | 86.6°F | 87.9°F |
| Koh Lanta | 88.5°F | 87.8°F | 88.0°F |
| Rayong | 88.5°F | 85.9°F | 87.5°F |
| Krabi | 88.5°F | 87.7°F | 87.9°F |
| Koh Lan | 88.3°F | 85.5°F | 87.2°F |
| Jomtien | 88.2°F | 85.6°F | 87.2°F |
| Pattaya | 88.2°F | 85.5°F | 87.1°F |
| Hat Yai | 87.7°F | 87.1°F | 87.7°F |
| Narathiwat | 87.6°F | 86.8°F | 87.3°F |
| Tao | 87.6°F | 85.7°F | 86.6°F |
| Phangan | 87.5°F | 85.9°F | 86.7°F |
| Lamai Beach | 87.5°F | 86.0°F | 86.8°F |
| Chaweng Beach | 87.5°F | 86.0°F | 86.8°F |
| Ko Phangan | 87.5°F | 85.9°F | 86.7°F |
| Choeng Mon Beach | 87.5°F | 86.0°F | 86.8°F |
| Samui | 87.5°F | 86.0°F | 86.8°F |
| Mae Nam Beach | 87.5°F | 85.9°F | 86.8°F |
| Bo Phut Beach | 87.5°F | 85.9°F | 86.8°F |
| Pattani | 87.4°F | 86.7°F | 87.3°F |
| Taling Ngam Beach | 87.4°F | 85.9°F | 86.8°F |
| Chumphon | 87.2°F | 85.3°F | 86.3°F |
| Prachuap Khiri Khan | 87.0°F | 85.0°F | 86.4°F |
| Hua Hin | 87.0°F | 84.5°F | 85.9°F |
| Bangkok | 87.0°F | 84.7°F | 86.1°F |
| Cha-am | 87.0°F | 84.5°F | 86.0°F |
| Surat Thani | 85.8°F | 85.7°F | 86.4°F |
Please see following sea water temperature averages charts for the warmest Thailand resorts in December.
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 |  |
+90 |
| Chumphon | |
+76 |
| Hua Hin |  |
+74 |
| Koh Chang | |
+82 |
| Krabi | |
+80 |
| Narathiwat |  |
+80 |
| Pattani | |
+76 |
| Pattaya | |
+80 |
| Phi Phi | |
+84 |
| Phuket |  |
+82 |
| Prachuap Khiri Khan | |
+74 |
| Rayong | |
+82 |
| Samet | |
+74 |
| Samui | |
+70 |
| Surat Thani | |
+78 |
