The Thailand resorts with the warmest sea water temperature at this moment are Trat, Hat Yai and Krabi.
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 |
May 2025 | June 2025 |
|---|---|---|---|
| Trat | 93.2°F | 92.2°F | 89.5°F |
| Hat Yai | 93.2°F | 91.5°F | 90.9°F |
| Krabi | 93.0°F | 90.8°F | 89.8°F |
| Phuket | 92.8°F | 90.6°F | 89.3°F |
| Koh Chang | 92.8°F | 91.8°F | 89.6°F |
| Koh Lanta | 92.8°F | 90.6°F | 90.0°F |
| Nai Yang Beach | 92.8°F | 90.4°F | 89.2°F |
| Cape Panwa | 92.8°F | 91.1°F | 89.4°F |
| Phi Phi | 92.8°F | 90.8°F | 89.7°F |
| Mai Khao Beach | 92.8°F | 90.4°F | 89.2°F |
| Ko Li Pe | 92.6°F | 91.0°F | 90.3°F |
| Surin Beach | 92.6°F | 90.5°F | 89.2°F |
| Rawai Beach | 92.6°F | 90.8°F | 89.3°F |
| Nai Harn Beach | 92.6°F | 90.8°F | 89.3°F |
| Khao Lak | 92.6°F | 90.1°F | 88.7°F |
| Kamala Beach | 92.6°F | 90.5°F | 89.2°F |
| Ko Wai | 92.6°F | 92.0°F | 89.6°F |
| Similan | 92.6°F | 90.4°F | 88.9°F |
| Bang Tao Beach | 92.6°F | 90.5°F | 89.2°F |
| Kalim Beach | 92.6°F | 90.6°F | 89.2°F |
| Kata Beach | 92.4°F | 90.7°F | 89.3°F |
| Ko Mak | 92.4°F | 92.0°F | 89.6°F |
| Karon Beach | 92.4°F | 90.7°F | 89.3°F |
| Patong Beach | 92.4°F | 90.6°F | 89.3°F |
| Samet | 92.4°F | 92.2°F | 90.0°F |
| Chumphon | 92.4°F | 91.3°F | 89.1°F |
| Rayong | 92.4°F | 92.1°F | 90.1°F |
| Jomtien | 92.2°F | 91.4°F | 90.1°F |
| Pattaya | 92.2°F | 91.4°F | 90.1°F |
| Bangkok | 92.2°F | 91.5°F | 90.4°F |
| Koh Lan | 92.2°F | 91.4°F | 90.2°F |
| Cha-am | 92.2°F | 91.8°F | 90.4°F |
| Hua Hin | 92.0°F | 91.8°F | 90.2°F |
| Koh Kood | 92.0°F | 91.9°F | 89.5°F |
| Pattani | 91.8°F | 91.3°F | 90.5°F |
| Narathiwat | 91.8°F | 91.1°F | 90.6°F |
| Taling Ngam Beach | 91.6°F | 91.3°F | 90.1°F |
| Bo Phut Beach | 91.4°F | 91.2°F | 90.1°F |
| Lamai Beach | 91.4°F | 91.3°F | 90.3°F |
| Mae Nam Beach | 91.4°F | 91.2°F | 90.1°F |
| Chaweng Beach | 91.4°F | 91.2°F | 90.2°F |
| Choeng Mon Beach | 91.4°F | 91.2°F | 90.2°F |
| Samui | 91.4°F | 91.3°F | 90.1°F |
| Tao | 91.2°F | 91.2°F | 89.8°F |
| Phangan | 91.2°F | 91.4°F | 90.0°F |
| Ko Phangan | 91.2°F | 91.3°F | 90.0°F |
| Prachuap Khiri Khan | 91.0°F | 90.8°F | 89.2°F |
| Surat Thani | 91.0°F | 91.2°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°
| Bang Tao Beach |  |
+90 |
| Bangkok |  |
+102 |
| Hua Hin |  |
+94 |
| Karon Beach | |
+90 |
| Kata Beach | |
+90 |
| Khao Lak |  |
+92 |
| Ko Li Pe | |
+88 |
| Koh Chang | |
+90 |
| Patong Beach | |
+90 |
| Pattaya | |
+92 |
| Phangan | |
+90 |
| Phi Phi | |
+90 |
| Phuket | |
+90 |
| Samet | |
+92 |
| Samui | |
+90 |
