The Thailand resorts with the warmest sea water temperature in March are Trat, Ko Wai and Koh Chang.
Below you can see a list of all popular Thailand resorts and information about sea water temperature in March for the last two years.
| Resort Name | March 2026 | March 2025 | March 2024 |
|---|---|---|---|
| Trat | 90.7°F | 89.8°F | 90.9°F |
| Ko Wai | 90.5°F | 89.0°F | 90.2°F |
| Koh Chang | 90.4°F | 89.1°F | 90.3°F |
| Ko Mak | 90.3°F | 88.9°F | 90.2°F |
| Samet | 90.3°F | 89.0°F | 90.4°F |
| Rayong | 90.2°F | 89.0°F | 90.6°F |
| Koh Kood | 90.2°F | 89.3°F | 90.4°F |
| Cha-am | 90.0°F | 88.5°F | 89.8°F |
| Koh Lanta | 89.9°F | 89.5°F | 89.9°F |
| Hat Yai | 89.8°F | 89.0°F | 90.3°F |
| Hua Hin | 89.7°F | 88.1°F | 89.7°F |
| Similan | 89.7°F | 89.3°F | 89.9°F |
| Khao Lak | 89.7°F | 89.7°F | 90.1°F |
| Jomtien | 89.6°F | 88.1°F | 90.0°F |
| Pattaya | 89.6°F | 88.0°F | 90.0°F |
| Krabi | 89.5°F | 89.5°F | 90.0°F |
| Chumphon | 89.5°F | 89.0°F | 90.7°F |
| Phuket | 89.4°F | 89.5°F | 90.0°F |
| Mai Khao Beach | 89.3°F | 89.5°F | 90.0°F |
| Nai Yang Beach | 89.3°F | 89.5°F | 90.0°F |
| Bangkok | 89.3°F | 88.1°F | 89.5°F |
| Bang Tao Beach | 89.3°F | 89.4°F | 89.9°F |
| Kamala Beach | 89.3°F | 89.4°F | 89.9°F |
| Surin Beach | 89.3°F | 89.4°F | 89.9°F |
| Kalim Beach | 89.2°F | 89.3°F | 89.8°F |
| Koh Lan | 89.2°F | 87.7°F | 89.8°F |
| Cape Panwa | 89.2°F | 89.3°F | 89.7°F |
| Patong Beach | 89.1°F | 89.2°F | 89.8°F |
| Ko Li Pe | 89.1°F | 89.2°F | 89.5°F |
| Phi Phi | 89.0°F | 89.2°F | 89.5°F |
| Karon Beach | 89.0°F | 89.1°F | 89.7°F |
| Kata Beach | 89.0°F | 89.1°F | 89.7°F |
| Nai Harn Beach | 88.9°F | 89.0°F | 89.5°F |
| Rawai Beach | 88.9°F | 89.0°F | 89.5°F |
| Prachuap Khiri Khan | 88.7°F | 87.4°F | 89.0°F |
| Surat Thani | 88.6°F | 88.7°F | 89.3°F |
| Taling Ngam Beach | 88.6°F | 88.5°F | 89.5°F |
| Bo Phut Beach | 88.4°F | 88.5°F | 89.5°F |
| Mae Nam Beach | 88.4°F | 88.5°F | 89.5°F |
| Samui | 88.3°F | 88.5°F | 89.4°F |
| Choeng Mon Beach | 88.3°F | 88.6°F | 89.4°F |
| Phangan | 88.3°F | 88.5°F | 89.4°F |
| Narathiwat | 88.3°F | 87.4°F | 89.3°F |
| Chaweng Beach | 88.3°F | 88.5°F | 89.4°F |
| Lamai Beach | 88.3°F | 88.5°F | 89.4°F |
| Ko Phangan | 88.2°F | 88.5°F | 89.4°F |
| Tao | 88.2°F | 88.5°F | 89.2°F |
| Pattani | 88.2°F | 87.6°F | 89.1°F |
Please see following sea water temperature averages charts for the warmest Thailand resorts in March.
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 |  |
+92 |
| Hua Hin | |
+88 |
| Karon Beach |  |
+88 |
| Kata Beach | |
+88 |
| Khao Lak |  |
+88 |
| Ko Li Pe | |
+88 |
| Koh Chang | |
+88 |
| Krabi |  |
+90 |
| Patong Beach | |
+88 |
| Pattaya | |
+88 |
| Phangan | |
+86 |
| Phi Phi | |
+88 |
| Phuket | |
+88 |
| Samet | |
+88 |
| Samui | |
+86 |
