The Thailand resorts with the warmest sea water temperature in December are Ko Li Pe, Samet and Koh Chang.
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 | 89.6°F | 88.5°F | 88.5°F |
| Samet | 89.3°F | 85.8°F | 87.5°F |
| Koh Chang | 89.2°F | 86.5°F | 87.8°F |
| Koh Kood | 89.2°F | 86.9°F | 88.2°F |
| Rayong | 89.1°F | 85.9°F | 87.5°F |
| Cape Panwa | 89.1°F | 87.9°F | 88.0°F |
| Khao Lak | 89.1°F | 88.1°F | 88.3°F |
| Nai Harn Beach | 89.1°F | 88.1°F | 88.1°F |
| Rawai Beach | 89.1°F | 88.1°F | 88.1°F |
| Patong Beach | 89.1°F | 88.1°F | 88.1°F |
| Kata Beach | 89.1°F | 88.1°F | 88.1°F |
| Karon Beach | 89.1°F | 88.1°F | 88.1°F |
| Phi Phi | 89.1°F | 87.8°F | 88.0°F |
| Phuket | 89.0°F | 88.0°F | 88.1°F |
| Surin Beach | 89.0°F | 88.1°F | 88.1°F |
| Kalim Beach | 89.0°F | 88.1°F | 88.1°F |
| Bang Tao Beach | 89.0°F | 88.1°F | 88.1°F |
| Kamala Beach | 89.0°F | 88.1°F | 88.1°F |
| Trat | 89.0°F | 86.5°F | 87.8°F |
| Similan | 89.0°F | 87.9°F | 88.0°F |
| Ko Mak | 89.0°F | 86.7°F | 88.1°F |
| Nai Yang Beach | 89.0°F | 88.0°F | 88.1°F |
| Mai Khao Beach | 89.0°F | 88.0°F | 88.1°F |
| Ko Wai | 88.9°F | 86.6°F | 87.9°F |
| Koh Lan | 88.8°F | 85.5°F | 87.2°F |
| Jomtien | 88.8°F | 85.6°F | 87.2°F |
| Koh Lanta | 88.7°F | 87.8°F | 88.0°F |
| Pattaya | 88.7°F | 85.5°F | 87.1°F |
| Krabi | 88.7°F | 87.7°F | 87.9°F |
| Tao | 88.0°F | 85.7°F | 86.6°F |
| Narathiwat | 88.0°F | 86.8°F | 87.3°F |
| Phangan | 87.9°F | 85.9°F | 86.7°F |
| Hat Yai | 87.9°F | 87.1°F | 87.7°F |
| Lamai Beach | 87.9°F | 86.0°F | 86.8°F |
| Choeng Mon Beach | 87.9°F | 86.0°F | 86.8°F |
| Ko Phangan | 87.9°F | 85.9°F | 86.7°F |
| Chaweng Beach | 87.9°F | 86.0°F | 86.8°F |
| Hua Hin | 87.9°F | 84.5°F | 85.9°F |
| Samui | 87.9°F | 86.0°F | 86.8°F |
| Mae Nam Beach | 87.8°F | 85.9°F | 86.8°F |
| Bo Phut Beach | 87.8°F | 85.9°F | 86.8°F |
| Cha-am | 87.8°F | 84.5°F | 86.0°F |
| Bangkok | 87.8°F | 84.7°F | 86.1°F |
| Taling Ngam Beach | 87.8°F | 85.9°F | 86.8°F |
| Pattani | 87.7°F | 86.7°F | 87.3°F |
| Prachuap Khiri Khan | 87.7°F | 85.0°F | 86.4°F |
| Chumphon | 87.6°F | 85.3°F | 86.3°F |
| Surat Thani | 86.1°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 |  |
+88 |
| Chumphon |  |
+82 |
| Hua Hin |  |
+82 |
| Koh Chang | |
+88 |
| Krabi | |
+80 |
| Narathiwat | |
+80 |
| Pattani | |
+78 |
| Pattaya | |
+86 |
| Phi Phi | |
+80 |
| Phuket | |
+78 |
| Prachuap Khiri Khan | |
+84 |
| Rayong | |
+88 |
| Samet | |
+88 |
| Samui |  |
+82 |
| Surat Thani | |
+80 |
