The Thailand resorts with the warmest sea water temperature in December are Ko Li Pe, Kata Beach and Karon Beach.
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 2017 | December 2016 | December 2015 |
|---|---|---|---|
| Ko Li Pe | 88.5°F | 88.5°F | 89.2°F |
| Kata Beach | 88.1°F | 88.1°F | 89.2°F |
| Karon Beach | 88.1°F | 88.1°F | 89.2°F |
| Patong Beach | 88.1°F | 88.1°F | 89.2°F |
| Kalim Beach | 88.1°F | 88.1°F | 89.1°F |
| Khao Lak | 88.1°F | 88.3°F | 89.1°F |
| Nai Harn Beach | 88.1°F | 88.1°F | 89.1°F |
| Rawai Beach | 88.1°F | 88.1°F | 89.1°F |
| Kamala Beach | 88.1°F | 88.1°F | 89.1°F |
| Surin Beach | 88.1°F | 88.1°F | 89.1°F |
| Bang Tao Beach | 88.1°F | 88.1°F | 89.1°F |
| Nai Yang Beach | 88.0°F | 88.1°F | 89.1°F |
| Mai Khao Beach | 88.0°F | 88.1°F | 89.1°F |
| Phuket | 88.0°F | 88.1°F | 89.0°F |
| Cape Panwa | 87.9°F | 88.0°F | 89.0°F |
| Similan | 87.9°F | 88.0°F | 89.0°F |
| Phi Phi | 87.8°F | 88.0°F | 88.9°F |
| Koh Lanta | 87.8°F | 88.0°F | 88.7°F |
| Krabi | 87.7°F | 87.9°F | 88.7°F |
| Hat Yai | 87.1°F | 87.7°F | 88.0°F |
| Koh Kood | 86.9°F | 88.2°F | 89.9°F |
| Narathiwat | 86.8°F | 87.3°F | 87.7°F |
| Ko Mak | 86.7°F | 88.1°F | 89.8°F |
| Pattani | 86.7°F | 87.3°F | 87.4°F |
| Ko Wai | 86.6°F | 87.9°F | 89.7°F |
| Trat | 86.5°F | 87.8°F | 89.8°F |
| Koh Chang | 86.5°F | 87.8°F | 89.4°F |
| Lamai Beach | 86.0°F | 86.8°F | 87.9°F |
| Chaweng Beach | 86.0°F | 86.8°F | 87.9°F |
| Choeng Mon Beach | 86.0°F | 86.8°F | 88.0°F |
| Samui | 86.0°F | 86.8°F | 87.9°F |
| Mae Nam Beach | 85.9°F | 86.8°F | 88.0°F |
| Bo Phut Beach | 85.9°F | 86.8°F | 88.0°F |
| Taling Ngam Beach | 85.9°F | 86.8°F | 87.8°F |
| Rayong | 85.9°F | 87.5°F | 89.7°F |
| Ko Phangan | 85.9°F | 86.7°F | 88.0°F |
| Phangan | 85.9°F | 86.7°F | 88.0°F |
| Samet | 85.8°F | 87.5°F | 89.5°F |
| Surat Thani | 85.7°F | 86.4°F | 87.3°F |
| Tao | 85.7°F | 86.6°F | 88.1°F |
| Jomtien | 85.6°F | 87.2°F | 89.4°F |
| Pattaya | 85.5°F | 87.1°F | 89.4°F |
| Koh Lan | 85.5°F | 87.2°F | 89.4°F |
| Chumphon | 85.3°F | 86.3°F | 87.6°F |
| Prachuap Khiri Khan | 85.0°F | 86.4°F | 88.4°F |
| Bangkok | 84.7°F | 86.1°F | 88.2°F |
| Hua Hin | 84.5°F | 85.9°F | 87.9°F |
| Cha-am | 84.5°F | 86.0°F | 87.9°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 |  |
+98 |
| Chumphon | |
+88 |
| Hua Hin |  |
+92 |
| Koh Chang |  |
+88 |
| Krabi |  |
+88 |
| Narathiwat | |
+88 |
| Pattani | |
+90 |
| Pattaya | |
+88 |
| Phi Phi | |
+86 |
| Phuket | |
+88 |
| Prachuap Khiri Khan | |
+90 |
| Rayong | |
+90 |
| Samet | |
+88 |
| Samui | |
+86 |
| Surat Thani | |
+90 |
