The Thailand resorts with the warmest sea water temperature at this moment are Trat, Koh Chang and Ko Wai.
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 |
|---|---|---|---|
| Trat | 91.8°F | 89.8°F | 91.7°F |
| Koh Chang | 91.6°F | 89.1°F | 90.9°F |
| Ko Wai | 91.6°F | 89.0°F | 90.6°F |
| Samet | 91.2°F | 89.0°F | 91.0°F |
| Rayong | 91.0°F | 89.0°F | 91.0°F |
| Koh Kood | 91.0°F | 89.3°F | 90.7°F |
| Ko Mak | 91.0°F | 88.9°F | 90.5°F |
| Cha-am | 90.6°F | 88.5°F | 91.2°F |
| Jomtien | 90.4°F | 88.1°F | 90.2°F |
| Pattaya | 90.2°F | 88.0°F | 90.2°F |
| Hat Yai | 90.2°F | 89.0°F | 91.3°F |
| Hua Hin | 90.2°F | 88.1°F | 90.9°F |
| Bangkok | 89.8°F | 88.1°F | 90.5°F |
| Koh Lanta | 89.6°F | 89.5°F | 91.6°F |
| Koh Lan | 89.4°F | 87.7°F | 90.1°F |
| Surat Thani | 89.4°F | 88.7°F | 91.3°F |
| Prachuap Khiri Khan | 89.4°F | 87.4°F | 89.8°F |
| Similan | 89.0°F | 89.3°F | 90.5°F |
| Khao Lak | 88.8°F | 89.7°F | 90.3°F |
| Chumphon | 88.8°F | 89.0°F | 90.8°F |
| Phangan | 88.6°F | 88.5°F | 90.6°F |
| Phi Phi | 88.6°F | 89.2°F | 90.8°F |
| Phuket | 88.4°F | 89.5°F | 90.4°F |
| Cape Panwa | 88.4°F | 89.3°F | 90.4°F |
| Taling Ngam Beach | 88.4°F | 88.5°F | 90.7°F |
| Krabi | 88.4°F | 89.5°F | 91.4°F |
| Pattani | 88.4°F | 87.6°F | 90.2°F |
| Narathiwat | 88.4°F | 87.4°F | 89.8°F |
| Ko Phangan | 88.4°F | 88.5°F | 90.5°F |
| Kamala Beach | 88.2°F | 89.4°F | 90.3°F |
| Mae Nam Beach | 88.2°F | 88.5°F | 90.5°F |
| Mai Khao Beach | 88.2°F | 89.5°F | 90.5°F |
| Nai Harn Beach | 88.2°F | 89.0°F | 90.1°F |
| Nai Yang Beach | 88.2°F | 89.5°F | 90.5°F |
| Rawai Beach | 88.2°F | 89.0°F | 90.1°F |
| Surin Beach | 88.2°F | 89.4°F | 90.3°F |
| Choeng Mon Beach | 88.2°F | 88.6°F | 90.5°F |
| Bo Phut Beach | 88.2°F | 88.5°F | 90.5°F |
| Bang Tao Beach | 88.2°F | 89.4°F | 90.3°F |
| Samui | 88.2°F | 88.5°F | 90.5°F |
| Lamai Beach | 88.0°F | 88.5°F | 90.5°F |
| Patong Beach | 88.0°F | 89.2°F | 90.2°F |
| Chaweng Beach | 88.0°F | 88.5°F | 90.5°F |
| Kalim Beach | 88.0°F | 89.3°F | 90.3°F |
| Tao | 88.0°F | 88.5°F | 90.1°F |
| Ko Li Pe | 88.0°F | 89.2°F | 90.5°F |
| Karon Beach | 87.8°F | 89.1°F | 90.1°F |
| Kata Beach | 87.8°F | 89.1°F | 90.1°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 |  |
+104 |
| Hua Hin | |
+92 |
| Karon Beach |  |
+92 |
| Kata Beach | |
+92 |
| Khao Lak |  |
+86 |
| Ko Li Pe | |
+88 |
| Koh Chang | |
+88 |
| Krabi | |
+94 |
| Patong Beach | |
+92 |
| Pattaya | |
+90 |
| Phangan | |
+86 |
| Phi Phi | |
+88 |
| Phuket | |
+92 |
| Samet | |
+92 |
| Samui | |
+84 |
