The Thailand resorts with the warmest sea water temperature in August are Ko Li Pe, Hat Yai and Narathiwat.
Below you can see a list of all popular Thailand resorts and information about sea water temperature in August for the last two years.
| Resort Name | August 2025 | August 2024 | August 2023 |
|---|---|---|---|
| Ko Li Pe | 90.8°F | 91.0°F | 90.4°F |
| Hat Yai | 90.6°F | 90.8°F | 90.3°F |
| Narathiwat | 90.3°F | 90.7°F | 90.2°F |
| Pattani | 90.3°F | 90.6°F | 90.1°F |
| Koh Lanta | 90.2°F | 90.2°F | 90.1°F |
| Phi Phi | 90.2°F | 90.6°F | 89.6°F |
| Cha-am | 90.0°F | 90.1°F | 89.6°F |
| Krabi | 89.9°F | 90.2°F | 89.7°F |
| Cape Panwa | 89.7°F | 90.4°F | 89.0°F |
| Phuket | 89.6°F | 90.1°F | 88.9°F |
| Nai Harn Beach | 89.6°F | 90.3°F | 88.9°F |
| Rawai Beach | 89.6°F | 90.3°F | 88.9°F |
| Surin Beach | 89.5°F | 90.0°F | 88.9°F |
| Kamala Beach | 89.5°F | 90.0°F | 88.9°F |
| Bang Tao Beach | 89.5°F | 90.0°F | 88.9°F |
| Kalim Beach | 89.5°F | 90.0°F | 88.9°F |
| Nai Yang Beach | 89.5°F | 89.8°F | 88.9°F |
| Patong Beach | 89.5°F | 90.2°F | 88.9°F |
| Lamai Beach | 89.5°F | 90.6°F | 89.5°F |
| Kata Beach | 89.5°F | 90.2°F | 88.8°F |
| Karon Beach | 89.5°F | 90.2°F | 88.8°F |
| Mai Khao Beach | 89.5°F | 89.7°F | 88.9°F |
| Koh Lan | 89.5°F | 90.1°F | 89.8°F |
| Chaweng Beach | 89.5°F | 90.6°F | 89.5°F |
| Samui | 89.4°F | 90.6°F | 89.4°F |
| Hua Hin | 89.4°F | 90.0°F | 89.2°F |
| Taling Ngam Beach | 89.4°F | 90.4°F | 89.4°F |
| Choeng Mon Beach | 89.4°F | 90.6°F | 89.3°F |
| Mae Nam Beach | 89.3°F | 90.5°F | 89.3°F |
| Bo Phut Beach | 89.3°F | 90.5°F | 89.3°F |
| Ko Phangan | 89.3°F | 90.5°F | 89.1°F |
| Phangan | 89.3°F | 90.5°F | 89.0°F |
| Tao | 89.3°F | 90.3°F | 88.8°F |
| Pattaya | 89.3°F | 89.7°F | 89.6°F |
| Jomtien | 89.3°F | 89.7°F | 89.5°F |
| Bangkok | 89.3°F | 89.7°F | 89.6°F |
| Samet | 89.3°F | 89.9°F | 88.9°F |
| Surat Thani | 89.2°F | 89.3°F | 88.8°F |
| Rayong | 89.2°F | 89.7°F | 89.0°F |
| Trat | 89.0°F | 89.5°F | 89.3°F |
| Koh Chang | 89.0°F | 89.8°F | 89.2°F |
| Ko Wai | 88.9°F | 89.8°F | 89.2°F |
| Koh Kood | 88.9°F | 89.9°F | 89.1°F |
| Ko Mak | 88.9°F | 89.9°F | 89.1°F |
| Similan | 88.7°F | 89.5°F | 88.1°F |
| Khao Lak | 88.7°F | 89.3°F | 88.5°F |
| Chumphon | 88.6°F | 89.4°F | 88.0°F |
| Prachuap Khiri Khan | 88.3°F | 89.1°F | 88.0°F |
Please see following sea water temperature averages charts for the warmest Thailand resorts in August.
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 |  |
+88 |
| Bangkok |  |
+82 |
| Karon Beach | |
+88 |
| Kata Beach | |
+88 |
| Khao Lak | |
+84 |
| Ko Li Pe | |
+84 |
| Koh Chang | |
+84 |
| Krabi | |
+86 |
| Patong Beach | |
+88 |
| Pattaya |  |
+88 |
| Phi Phi | |
+84 |
| Phuket | |
+88 |
| Samet | |
+84 |
| Samui | |
+84 |
| Similan | |
+84 |
