The Thailand resorts with the warmest sea water temperature in May are Koh Chang, Hat Yai and Ko Wai.
Below you can see a list of all popular Thailand resorts and information about sea water temperature in May for the last two years.
| Resort Name | May 2024 | May 2023 | May 2022 |
|---|---|---|---|
| Koh Chang | 94.1°F | 92.7°F | 91.1°F |
| Hat Yai | 93.9°F | 92.2°F | 91.8°F |
| Ko Wai | 93.8°F | 92.5°F | 91.1°F |
| Trat | 93.7°F | 93.0°F | 91.8°F |
| Ko Mak | 93.6°F | 92.3°F | 90.9°F |
| Koh Kood | 93.6°F | 92.4°F | 90.8°F |
| Taling Ngam Beach | 93.6°F | 91.6°F | 90.8°F |
| Rayong | 93.5°F | 92.5°F | 91.3°F |
| Chumphon | 93.5°F | 91.9°F | 90.8°F |
| Samet | 93.4°F | 92.4°F | 91.2°F |
| Lamai Beach | 93.3°F | 91.3°F | 90.7°F |
| Bo Phut Beach | 93.3°F | 91.5°F | 90.7°F |
| Mae Nam Beach | 93.3°F | 91.5°F | 90.7°F |
| Chaweng Beach | 93.3°F | 91.4°F | 90.7°F |
| Samui | 93.3°F | 91.4°F | 90.7°F |
| Choeng Mon Beach | 93.3°F | 91.4°F | 90.7°F |
| Koh Lanta | 93.3°F | 92.1°F | 91.6°F |
| Cha-am | 93.2°F | 92.9°F | 90.8°F |
| Pattaya | 93.1°F | 92.2°F | 91.0°F |
| Phangan | 93.1°F | 92.1°F | 90.6°F |
| Ko Phangan | 93.1°F | 91.9°F | 90.5°F |
| Jomtien | 93.1°F | 92.1°F | 91.0°F |
| Koh Lan | 93.1°F | 92.1°F | 90.8°F |
| Phi Phi | 93.0°F | 91.5°F | 91.2°F |
| Pattani | 92.9°F | 91.6°F | 91.5°F |
| Hua Hin | 92.9°F | 92.6°F | 90.6°F |
| Tao | 92.9°F | 91.7°F | 90.0°F |
| Ko Li Pe | 92.9°F | 91.5°F | 91.1°F |
| Krabi | 92.8°F | 91.9°F | 91.3°F |
| Bangkok | 92.8°F | 92.4°F | 91.2°F |
| Cape Panwa | 92.8°F | 91.4°F | 90.8°F |
| Narathiwat | 92.7°F | 91.3°F | 90.9°F |
| Prachuap Khiri Khan | 92.6°F | 91.4°F | 90.3°F |
| Phuket | 92.6°F | 91.5°F | 90.7°F |
| Nai Harn Beach | 92.5°F | 91.1°F | 90.6°F |
| Rawai Beach | 92.5°F | 91.1°F | 90.6°F |
| Karon Beach | 92.5°F | 91.1°F | 90.6°F |
| Kata Beach | 92.5°F | 91.1°F | 90.6°F |
| Patong Beach | 92.5°F | 91.2°F | 90.6°F |
| Kalim Beach | 92.4°F | 91.3°F | 90.6°F |
| Surat Thani | 92.4°F | 91.7°F | 90.8°F |
| Bang Tao Beach | 92.4°F | 91.4°F | 90.7°F |
| Kamala Beach | 92.4°F | 91.4°F | 90.7°F |
| Surin Beach | 92.4°F | 91.4°F | 90.7°F |
| Nai Yang Beach | 92.3°F | 91.5°F | 90.7°F |
| Mai Khao Beach | 92.2°F | 91.4°F | 90.7°F |
| Similan | 91.9°F | 91.2°F | 90.3°F |
| Khao Lak | 91.4°F | 91.2°F | 90.2°F |
Please see following sea water temperature averages charts for the warmest Thailand resorts in May.
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 |  |
+78 |
| Bangkok |  |
+80 |
| Hua Hin | |
+74 |
| Karon Beach | |
+78 |
| Kata Beach | |
+78 |
| Khao Lak | |
+76 |
| Koh Chang | |
+80 |
| Krabi | |
+74 |
| Patong Beach | |
+78 |
| Pattaya | |
+78 |
| Phangan | |
+84 |
| Phi Phi | |
+80 |
| Phuket | |
+78 |
| Samet | |
+78 |
| Samui |  |
+84 |
