The Thailand resorts with the warmest sea water temperature in December are Ko Li Pe, Nai Harn Beach and Rawai 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 2024 | December 2023 | December 2022 |
|---|---|---|---|
| Ko Li Pe | 88.9°F | 88.2°F | 88.1°F |
| Nai Harn Beach | 88.3°F | 88.1°F | 87.8°F |
| Rawai Beach | 88.3°F | 88.1°F | 87.8°F |
| Similan | 88.3°F | 87.7°F | 87.5°F |
| Koh Kood | 88.3°F | 89.1°F | 87.4°F |
| Karon Beach | 88.3°F | 88.0°F | 87.7°F |
| Kata Beach | 88.3°F | 88.0°F | 87.7°F |
| Phi Phi | 88.3°F | 87.9°F | 87.7°F |
| Patong Beach | 88.3°F | 88.1°F | 87.7°F |
| Kalim Beach | 88.2°F | 88.1°F | 87.6°F |
| Cape Panwa | 88.2°F | 88.1°F | 87.7°F |
| Bang Tao Beach | 88.1°F | 88.1°F | 87.6°F |
| Kamala Beach | 88.1°F | 88.1°F | 87.6°F |
| Surin Beach | 88.1°F | 88.1°F | 87.6°F |
| Phuket | 88.1°F | 88.1°F | 87.6°F |
| Nai Yang Beach | 88.1°F | 88.1°F | 87.5°F |
| Mai Khao Beach | 88.1°F | 88.1°F | 87.5°F |
| Khao Lak | 88.1°F | 88.0°F | 87.5°F |
| Ko Mak | 87.8°F | 88.9°F | 87.4°F |
| Krabi | 87.7°F | 87.9°F | 87.3°F |
| Koh Chang | 87.7°F | 88.7°F | 86.9°F |
| Koh Lanta | 87.7°F | 87.9°F | 87.1°F |
| Rayong | 87.5°F | 88.4°F | 86.7°F |
| Samet | 87.5°F | 88.4°F | 86.9°F |
| Ko Wai | 87.5°F | 88.7°F | 87.2°F |
| Koh Lan | 87.3°F | 88.0°F | 86.8°F |
| Choeng Mon Beach | 87.3°F | 87.3°F | 86.1°F |
| Chaweng Beach | 87.3°F | 87.4°F | 86.1°F |
| Trat | 87.3°F | 88.3°F | 86.5°F |
| Lamai Beach | 87.2°F | 87.4°F | 86.1°F |
| Samui | 87.2°F | 87.3°F | 86.0°F |
| Bo Phut Beach | 87.2°F | 87.3°F | 86.0°F |
| Mae Nam Beach | 87.2°F | 87.3°F | 86.0°F |
| Ko Phangan | 87.2°F | 87.3°F | 86.0°F |
| Phangan | 87.1°F | 87.2°F | 86.0°F |
| Narathiwat | 87.0°F | 87.2°F | 86.9°F |
| Tao | 87.0°F | 87.2°F | 86.0°F |
| Hat Yai | 86.9°F | 87.2°F | 86.7°F |
| Taling Ngam Beach | 86.9°F | 87.3°F | 86.0°F |
| Pattani | 86.8°F | 87.2°F | 86.5°F |
| Jomtien | 86.8°F | 87.7°F | 86.5°F |
| Pattaya | 86.8°F | 87.7°F | 86.5°F |
| Prachuap Khiri Khan | 86.1°F | 86.7°F | 85.5°F |
| Cha-am | 85.8°F | 86.9°F | 85.3°F |
| Chumphon | 85.8°F | 86.9°F | 85.5°F |
| Hua Hin | 85.8°F | 86.8°F | 85.4°F |
| Surat Thani | 85.3°F | 86.0°F | 85.0°F |
| Bangkok | 85.0°F | 86.4°F | 85.0°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°
| Bang Tao Beach |  |
+78 |
| Bangkok |  |
+80 |
| Hua Hin | |
+74 |
| Karon Beach | |
+78 |
| Kata Beach | |
+78 |
| Khao Lak | |
+76 |
| Koh Chang | |
+80 |
| Krabi | |
+74 |
| Patong Beach | |
+78 |
| Pattaya | |
+78 |
| Phangan | |
+84 |
| Phi Phi | |
+80 |
| Phuket | |
+78 |
| Samet | |
+78 |
| Samui |  |
+84 |
