The Thailand resorts with the warmest sea water temperature in April are Trat, Koh Chang and Ko Wai.
Below you can see a list of all popular Thailand resorts and information about sea water temperature in April for the last two years.
| Resort Name | April 2021 | April 2020 | April 2019 |
|---|---|---|---|
| Trat | 92.4°F | 92.3°F | 93.3°F |
| Koh Chang | 91.3°F | 91.9°F | 92.7°F |
| Ko Wai | 91.2°F | 91.7°F | 92.5°F |
| Rayong | 91.2°F | 91.6°F | 92.4°F |
| Koh Kood | 91.1°F | 91.5°F | 92.0°F |
| Hat Yai | 91.0°F | 92.2°F | 92.6°F |
| Koh Lanta | 91.0°F | 92.2°F | 92.8°F |
| Ko Mak | 91.0°F | 91.5°F | 92.2°F |
| Samet | 90.8°F | 91.6°F | 92.3°F |
| Chumphon | 90.7°F | 92.6°F | 92.6°F |
| Pattani | 90.6°F | 90.8°F | 91.1°F |
| Krabi | 90.6°F | 91.8°F | 92.3°F |
| Cha-am | 90.5°F | 91.1°F | 92.2°F |
| Surat Thani | 90.5°F | 91.4°F | 91.7°F |
| Ko Li Pe | 90.4°F | 91.2°F | 91.6°F |
| Mai Khao Beach | 90.4°F | 91.1°F | 91.3°F |
| Nai Yang Beach | 90.4°F | 91.1°F | 91.2°F |
| Phuket | 90.4°F | 91.1°F | 91.3°F |
| Taling Ngam Beach | 90.4°F | 91.3°F | 92.3°F |
| Cape Panwa | 90.4°F | 91.1°F | 91.4°F |
| Bang Tao Beach | 90.4°F | 90.9°F | 91.1°F |
| Surin Beach | 90.4°F | 90.9°F | 91.1°F |
| Kamala Beach | 90.4°F | 90.9°F | 91.1°F |
| Bangkok | 90.4°F | 91.2°F | 91.8°F |
| Kalim Beach | 90.3°F | 90.9°F | 91.1°F |
| Phi Phi | 90.3°F | 91.3°F | 91.7°F |
| Patong Beach | 90.3°F | 90.8°F | 91.1°F |
| Nai Harn Beach | 90.3°F | 90.8°F | 91.1°F |
| Rawai Beach | 90.3°F | 90.8°F | 91.1°F |
| Karon Beach | 90.2°F | 90.7°F | 91.0°F |
| Kata Beach | 90.2°F | 90.7°F | 91.0°F |
| Phangan | 90.2°F | 90.8°F | 91.9°F |
| Pattaya | 90.2°F | 91.0°F | 91.5°F |
| Lamai Beach | 90.2°F | 91.1°F | 91.9°F |
| Khao Lak | 90.2°F | 90.4°F | 91.1°F |
| Mae Nam Beach | 90.2°F | 91.1°F | 92.0°F |
| Bo Phut Beach | 90.2°F | 91.1°F | 92.0°F |
| Jomtien | 90.2°F | 91.0°F | 91.5°F |
| Samui | 90.2°F | 91.1°F | 91.9°F |
| Chaweng Beach | 90.1°F | 91.1°F | 91.9°F |
| Ko Phangan | 90.1°F | 90.7°F | 91.7°F |
| Hua Hin | 90.1°F | 91.0°F | 91.9°F |
| Choeng Mon Beach | 90.1°F | 91.0°F | 91.9°F |
| Koh Lan | 89.9°F | 90.7°F | 91.3°F |
| Tao | 89.8°F | 90.5°F | 91.4°F |
| Similan | 89.8°F | 90.5°F | 91.3°F |
| Narathiwat | 89.8°F | 90.5°F | 90.6°F |
| Prachuap Khiri Khan | 89.6°F | 90.4°F | 91.3°F |
Please see following sea water temperature averages charts for the warmest Thailand resorts in April.
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°
| Bangkok |  |
+96 |
| Chumphon | |
+88 |
| Hua Hin |  |
+88 |
| Koh Chang | |
+90 |
| Krabi | |
+88 |
| Narathiwat | |
+86 |
| Pattani |  |
+86 |
| Pattaya | |
+90 |
| Phi Phi | |
+84 |
| Phuket | |
+88 |
| Prachuap Khiri Khan | |
+88 |
| Rayong |  |
+90 |
| Samet | |
+90 |
| Samui | |
+84 |
| Surat Thani |  |
+84 |
