The Thailand resorts with the warmest sea water temperature at this moment are Ko Wai, Rayong and Ko Mak.
Below you can see a list of all popular Thailand resorts and information about current sea water temperature and averages for current and next months.
| Resort Name | Current Sea Water Temperature |
March 2025 | April 2025 |
|---|---|---|---|
| Ko Wai | 91.4°F | 89.0°F | 90.6°F |
| Rayong | 91.2°F | 89.0°F | 91.0°F |
| Ko Mak | 91.2°F | 88.9°F | 90.5°F |
| Khao Lak | 91.2°F | 89.7°F | 90.3°F |
| Chumphon | 91.0°F | 89.0°F | 90.8°F |
| Similan | 91.0°F | 89.3°F | 90.5°F |
| Koh Chang | 90.8°F | 89.1°F | 90.9°F |
| Koh Lanta | 90.8°F | 89.5°F | 91.6°F |
| Koh Kood | 90.8°F | 89.3°F | 90.7°F |
| Trat | 90.8°F | 89.8°F | 91.7°F |
| Samet | 90.8°F | 89.0°F | 91.0°F |
| Krabi | 90.6°F | 89.5°F | 91.4°F |
| Nai Yang Beach | 90.6°F | 89.5°F | 90.5°F |
| Phuket | 90.6°F | 89.5°F | 90.4°F |
| Surin Beach | 90.6°F | 89.4°F | 90.3°F |
| Patong Beach | 90.6°F | 89.2°F | 90.2°F |
| Cha-am | 90.6°F | 88.5°F | 91.2°F |
| Mai Khao Beach | 90.6°F | 89.5°F | 90.5°F |
| Bang Tao Beach | 90.6°F | 89.4°F | 90.3°F |
| Kata Beach | 90.6°F | 89.1°F | 90.1°F |
| Karon Beach | 90.6°F | 89.1°F | 90.1°F |
| Kalim Beach | 90.6°F | 89.3°F | 90.3°F |
| Kamala Beach | 90.6°F | 89.4°F | 90.3°F |
| Jomtien | 90.4°F | 88.1°F | 90.2°F |
| Cape Panwa | 90.4°F | 89.3°F | 90.4°F |
| Nai Harn Beach | 90.4°F | 89.0°F | 90.1°F |
| Rawai Beach | 90.4°F | 89.0°F | 90.1°F |
| Pattaya | 90.2°F | 88.0°F | 90.2°F |
| Hua Hin | 90.2°F | 88.1°F | 90.9°F |
| Hat Yai | 90.2°F | 89.0°F | 91.3°F |
| Phi Phi | 90.2°F | 89.2°F | 90.8°F |
| Bangkok | 89.8°F | 88.1°F | 90.5°F |
| Ko Li Pe | 89.6°F | 89.2°F | 90.5°F |
| Koh Lan | 89.4°F | 87.7°F | 90.1°F |
| Taling Ngam Beach | 89.2°F | 88.5°F | 90.7°F |
| Surat Thani | 89.2°F | 88.7°F | 91.3°F |
| Bo Phut Beach | 89.0°F | 88.5°F | 90.5°F |
| Lamai Beach | 89.0°F | 88.5°F | 90.5°F |
| Mae Nam Beach | 89.0°F | 88.5°F | 90.5°F |
| Chaweng Beach | 89.0°F | 88.5°F | 90.5°F |
| Choeng Mon Beach | 89.0°F | 88.6°F | 90.5°F |
| Samui | 89.0°F | 88.5°F | 90.5°F |
| Phangan | 88.8°F | 88.5°F | 90.6°F |
| Ko Phangan | 88.8°F | 88.5°F | 90.5°F |
| Tao | 88.4°F | 88.5°F | 90.1°F |
| Prachuap Khiri Khan | 88.2°F | 87.4°F | 89.8°F |
| Pattani | 88.2°F | 87.6°F | 90.2°F |
| Narathiwat | 88.2°F | 87.4°F | 89.8°F |
Please see following sea water temperature averages charts for the warmest Thailand resorts for more details.
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 |  |
+92 |
| Hua Hin | |
+88 |
| Karon Beach |  |
+88 |
| Kata Beach | |
+88 |
| Khao Lak |  |
+88 |
| Ko Li Pe | |
+88 |
| Koh Chang | |
+88 |
| Krabi |  |
+90 |
| Patong Beach | |
+88 |
| Pattaya | |
+88 |
| Phangan | |
+86 |
| Phi Phi | |
+88 |
| Phuket | |
+88 |
| Samet | |
+88 |
| Samui | |
+86 |
