The Thailand resorts with the warmest sea water temperature at this moment are Koh Lan, Cha-am and Ko Li Pe.
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 |
July 2025 | August 2025 |
|---|---|---|---|
| Koh Lan | 91.2°F | 89.3°F | 89.5°F |
| Cha-am | 91.0°F | 89.5°F | 90.0°F |
| Ko Li Pe | 91.0°F | 90.9°F | 90.8°F |
| Bangkok | 91.0°F | 89.0°F | 89.3°F |
| Pattaya | 91.0°F | 89.1°F | 89.3°F |
| Hua Hin | 91.0°F | 89.0°F | 89.4°F |
| Hat Yai | 90.8°F | 90.4°F | 90.6°F |
| Jomtien | 90.8°F | 89.1°F | 89.3°F |
| Krabi | 90.6°F | 89.8°F | 89.9°F |
| Koh Lanta | 90.6°F | 90.2°F | 90.2°F |
| Surat Thani | 90.6°F | 88.7°F | 89.2°F |
| Rayong | 90.4°F | 89.1°F | 89.2°F |
| Samui | 90.2°F | 89.1°F | 89.4°F |
| Ko Phangan | 90.2°F | 89.1°F | 89.3°F |
| Phangan | 90.2°F | 89.1°F | 89.3°F |
| Samet | 90.2°F | 88.9°F | 89.3°F |
| Phi Phi | 90.2°F | 89.7°F | 90.2°F |
| Pattani | 90.2°F | 90.6°F | 90.3°F |
| Choeng Mon Beach | 90.2°F | 89.2°F | 89.4°F |
| Chaweng Beach | 90.2°F | 89.2°F | 89.5°F |
| Bo Phut Beach | 90.2°F | 89.1°F | 89.3°F |
| Taling Ngam Beach | 90.2°F | 89.1°F | 89.4°F |
| Mae Nam Beach | 90.2°F | 89.1°F | 89.3°F |
| Lamai Beach | 90.2°F | 89.2°F | 89.5°F |
| Phuket | 90.0°F | 89.4°F | 89.6°F |
| Kamala Beach | 90.0°F | 89.3°F | 89.5°F |
| Mai Khao Beach | 90.0°F | 89.3°F | 89.5°F |
| Cape Panwa | 90.0°F | 89.5°F | 89.7°F |
| Nai Yang Beach | 90.0°F | 89.3°F | 89.5°F |
| Patong Beach | 90.0°F | 89.3°F | 89.5°F |
| Surin Beach | 90.0°F | 89.3°F | 89.5°F |
| Kalim Beach | 90.0°F | 89.3°F | 89.5°F |
| Bang Tao Beach | 90.0°F | 89.3°F | 89.5°F |
| Karon Beach | 89.8°F | 89.3°F | 89.5°F |
| Nai Harn Beach | 89.8°F | 89.3°F | 89.6°F |
| Rawai Beach | 89.8°F | 89.3°F | 89.6°F |
| Narathiwat | 89.8°F | 90.5°F | 90.3°F |
| Khao Lak | 89.8°F | 88.8°F | 88.7°F |
| Tao | 89.8°F | 89.1°F | 89.3°F |
| Kata Beach | 89.8°F | 89.3°F | 89.5°F |
| Prachuap Khiri Khan | 89.4°F | 87.9°F | 88.3°F |
| Koh Chang | 89.4°F | 88.5°F | 89.0°F |
| Trat | 89.2°F | 88.3°F | 89.0°F |
| Chumphon | 89.2°F | 88.2°F | 88.6°F |
| Similan | 89.0°F | 88.1°F | 88.7°F |
| Ko Wai | 89.0°F | 88.5°F | 88.9°F |
| Ko Mak | 89.0°F | 88.4°F | 88.9°F |
| Koh Kood | 89.0°F | 88.4°F | 88.9°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°
| Bang Tao Beach |  |
+82 |
| Bangkok |  |
+84 |
| Cape Panwa | |
+82 |
| Hua Hin | |
+82 |
| Karon Beach | |
+82 |
| Kata Beach | |
+82 |
| Khao Lak | |
+82 |
| Koh Chang |  |
+84 |
| Nai Yang Beach | |
+82 |
| Pattaya | |
+84 |
| Phangan | |
+86 |
| Phi Phi | |
+86 |
| Phuket | |
+84 |
| Samet | |
+84 |
| Samui | |
+86 |
