The Thailand resorts with the warmest sea water temperature at this moment are Rayong, Koh Lan and Pattaya.
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 |
|---|---|---|---|
| Rayong | 94.0°F | 92.1°F | 90.1°F |
| Koh Lan | 93.4°F | 91.4°F | 90.2°F |
| Pattaya | 93.4°F | 91.4°F | 90.1°F |
| Jomtien | 93.4°F | 91.4°F | 90.1°F |
| Samet | 93.2°F | 92.2°F | 90.0°F |
| Hat Yai | 93.2°F | 91.5°F | 90.9°F |
| Cha-am | 92.6°F | 91.8°F | 90.4°F |
| Trat | 92.6°F | 92.2°F | 89.5°F |
| Bangkok | 92.6°F | 91.5°F | 90.4°F |
| Koh Chang | 92.2°F | 91.8°F | 89.6°F |
| Hua Hin | 92.0°F | 91.8°F | 90.2°F |
| Ko Wai | 92.0°F | 92.0°F | 89.6°F |
| Koh Kood | 91.8°F | 91.9°F | 89.5°F |
| Ko Mak | 91.8°F | 92.0°F | 89.6°F |
| Chaweng Beach | 91.6°F | 91.2°F | 90.2°F |
| Taling Ngam Beach | 91.6°F | 91.3°F | 90.1°F |
| Lamai Beach | 91.6°F | 91.3°F | 90.3°F |
| Pattani | 91.6°F | 91.3°F | 90.5°F |
| Ko Li Pe | 91.6°F | 91.0°F | 90.3°F |
| Bo Phut Beach | 91.4°F | 91.2°F | 90.1°F |
| Choeng Mon Beach | 91.4°F | 91.2°F | 90.2°F |
| Mae Nam Beach | 91.4°F | 91.2°F | 90.1°F |
| Samui | 91.4°F | 91.3°F | 90.1°F |
| Narathiwat | 91.2°F | 91.1°F | 90.6°F |
| Ko Phangan | 91.0°F | 91.3°F | 90.0°F |
| Phangan | 90.8°F | 91.4°F | 90.0°F |
| Koh Lanta | 90.6°F | 90.6°F | 90.0°F |
| Surat Thani | 90.6°F | 91.2°F | 89.8°F |
| Phi Phi | 90.4°F | 90.8°F | 89.7°F |
| Tao | 90.4°F | 91.2°F | 89.8°F |
| Krabi | 90.0°F | 90.8°F | 89.8°F |
| Khao Lak | 89.6°F | 90.1°F | 88.7°F |
| Mai Khao Beach | 89.6°F | 90.4°F | 89.2°F |
| Cape Panwa | 89.6°F | 91.1°F | 89.4°F |
| Nai Yang Beach | 89.6°F | 90.4°F | 89.2°F |
| Chumphon | 89.6°F | 91.3°F | 89.1°F |
| Prachuap Khiri Khan | 89.6°F | 90.8°F | 89.2°F |
| Surin Beach | 89.4°F | 90.5°F | 89.2°F |
| Rawai Beach | 89.4°F | 90.8°F | 89.3°F |
| Patong Beach | 89.4°F | 90.6°F | 89.3°F |
| Nai Harn Beach | 89.4°F | 90.8°F | 89.3°F |
| Phuket | 89.4°F | 90.6°F | 89.3°F |
| Karon Beach | 89.4°F | 90.7°F | 89.3°F |
| Kamala Beach | 89.4°F | 90.5°F | 89.2°F |
| Kalim Beach | 89.4°F | 90.6°F | 89.2°F |
| Bang Tao Beach | 89.4°F | 90.5°F | 89.2°F |
| Similan | 89.4°F | 90.4°F | 88.9°F |
| Kata Beach | 89.4°F | 90.7°F | 89.3°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 |  |
+94 |
| Hua Hin | |
+92 |
| Karon Beach | |
+82 |
| Kata Beach | |
+82 |
| Khao Lak | |
+82 |
| Koh Chang |  |
+86 |
| Nai Yang Beach | |
+82 |
| Patong Beach | |
+82 |
| Pattaya |  |
+88 |
| Phangan | |
+90 |
| Phi Phi | |
+84 |
| Phuket | |
+82 |
| Samet | |
+86 |
| Samui | |
+88 |
