In May warmest sea in Thailand is usually observed in the following locations: Trat, Hat Yai, Krabi.
Table below shows the average sea water temperature for marine resorts of Thailand in May for the last three years.
| Place name | May 2026 | May 2025 | May 2024 |
|---|---|---|---|
| Trat | 88.8°F | 87.9°F | 89.3°F |
| Hat Yai | 88.7°F | 87.4°F | 89.5°F |
| Krabi | 88.7°F | 86.7°F | 88.5°F |
| Koh Chang | 88.7°F | 87.7°F | 89.7°F |
| Koh Lanta | 88.7°F | 86.6°F | 89.0°F |
| Phi Phi | 88.6°F | 86.7°F | 88.7°F |
| Cape Panwa | 88.5°F | 87.0°F | 88.5°F |
| Mai Khao Beach | 88.5°F | 86.4°F | 88.0°F |
| Ko Wai | 88.5°F | 87.8°F | 89.4°F |
| Phuket | 88.4°F | 86.6°F | 88.3°F |
| Chumphon | 88.4°F | 87.2°F | 89.1°F |
| Nai Yang Beach | 88.4°F | 86.4°F | 88.1°F |
| Ko Li Pe | 88.4°F | 86.9°F | 88.6°F |
| Samet | 88.3°F | 88.0°F | 89.0°F |
| Rayong | 88.3°F | 87.9°F | 89.1°F |
| Kalim Beach | 88.3°F | 86.5°F | 88.2°F |
| Bang Tao Beach | 88.3°F | 86.5°F | 88.2°F |
| Kamala Beach | 88.3°F | 86.5°F | 88.2°F |
| Surin Beach | 88.3°F | 86.5°F | 88.2°F |
| Patong Beach | 88.3°F | 86.6°F | 88.2°F |
| Nai Harn Beach | 88.3°F | 86.7°F | 88.3°F |
| Rawai Beach | 88.3°F | 86.7°F | 88.3°F |
| Kata Beach | 88.3°F | 86.6°F | 88.2°F |
| Karon Beach | 88.3°F | 86.6°F | 88.2°F |
| Ko Mak | 88.2°F | 87.8°F | 89.2°F |
| Cha-am | 88.2°F | 87.6°F | 88.9°F |
| Koh Kood | 88.1°F | 87.7°F | 89.2°F |
| Hua Hin | 88.1°F | 87.7°F | 88.6°F |
| Bangkok | 88.0°F | 87.3°F | 88.5°F |
| Similan | 87.9°F | 86.3°F | 87.8°F |
| Pattaya | 87.9°F | 87.3°F | 88.8°F |
| Khao Lak | 87.9°F | 86.1°F | 87.3°F |
| Jomtien | 87.9°F | 87.3°F | 88.8°F |
| Koh Lan | 87.9°F | 87.3°F | 88.8°F |
| Taling Ngam Beach | 87.5°F | 87.1°F | 89.2°F |
| Tao | 87.4°F | 87.1°F | 88.6°F |
| Pattani | 87.3°F | 87.1°F | 88.6°F |
| Lamai Beach | 87.3°F | 87.2°F | 89.0°F |
| Prachuap Khiri Khan | 87.3°F | 86.8°F | 88.3°F |
| Chaweng Beach | 87.2°F | 87.1°F | 89.0°F |
| Samui | 87.2°F | 87.1°F | 89.0°F |
| Surat Thani | 87.2°F | 87.1°F | 88.2°F |
| Narathiwat | 87.2°F | 87.0°F | 88.4°F |
| Choeng Mon Beach | 87.2°F | 87.1°F | 89.0°F |
| Bo Phut Beach | 87.2°F | 87.1°F | 89.0°F |
| Mae Nam Beach | 87.2°F | 87.1°F | 89.0°F |
| Phangan | 87.1°F | 87.2°F | 88.8°F |
| Ko Phangan | 87.1°F | 87.2°F | 88.8°F |
Charts below show average sea water temperature for Thailand resorts with the warmest sea in May.
You can also check other months of the year to see sea temperature of Thailand resorts at that time.
Places in Thailand:
Name
°F
