In March warmest sea in China is usually observed in the following locations: Hainan, Sanya, Dadunhai.
Table below shows the average sea water temperature for marine resorts of China in March for the last three years.
| Place name | March 2026 | March 2025 | March 2024 |
|---|---|---|---|
| Hainan | 76.8°F | 73.5°F | 74.3°F |
| Sanya | 76.8°F | 74.4°F | 77.0°F |
| Dadunhai | 76.8°F | 74.4°F | 77.0°F |
| Yalong Bay | 76.6°F | 74.3°F | 76.5°F |
| Tainan | 76.4°F | 76.0°F | 76.1°F |
| Haikou | 74.3°F | 69.9°F | 71.3°F |
| Beihai | 73.6°F | 70.5°F | 69.4°F |
| Taichung | 72.1°F | 68.7°F | 71.1°F |
| Shenzhen | 71.6°F | 67.8°F | 69.8°F |
| Zhuhai | 71.2°F | 67.1°F | 68.9°F |
| Macau | 71.0°F | 67.1°F | 69.0°F |
| Guangzhou | 70.4°F | 69.0°F | 69.4°F |
| Hong Kong | 69.8°F | 65.5°F | 68.8°F |
| Taipei | 69.2°F | 65.3°F | 67.7°F |
| Xiamen | 63.9°F | 62.6°F | 61.9°F |
| Suzhou | 54.2°F | 53.6°F | 54.3°F |
| Hangzhou | 53.9°F | 55.8°F | 52.7°F |
| Nantong | 53.2°F | 52.8°F | 50.9°F |
| Shanghai | 52.4°F | 51.9°F | 50.6°F |
| Ningbo | 51.4°F | 50.4°F | 48.5°F |
| Quingdao | 45.2°F | 44.1°F | 42.2°F |
| Tianjin | 42.1°F | 43.5°F | 41.8°F |
| Yantai | 41.5°F | 40.8°F | 38.7°F |
| Dalian | 40.8°F | 40.7°F | 38.5°F |
| Weihai | 40.5°F | 40.3°F | 38.3°F |
| Beidaihe | 37.7°F | 38.5°F | 37.3°F |
| Qinhuangdao | 37.2°F | 38.3°F | 36.8°F |
Charts below show average sea water temperature for China resorts with the warmest sea in March.
You can also check other months of the year to see sea temperature of China resorts at that time.
Places in China:
Name
°F
