In December warmest sea in China is usually observed in the following locations: Sanya, Dadunhai, Yalong Bay.
Table below shows the average sea water temperature for marine resorts of China in December for the last three years.
| Place name | December 2025 | December 2024 | December 2023 |
|---|---|---|---|
| Sanya | 77.3°F | 77.0°F | 78.7°F |
| Dadunhai | 77.3°F | 77.0°F | 78.7°F |
| Yalong Bay | 77.2°F | 76.5°F | 78.4°F |
| Tainan | 76.5°F | 74.9°F | 76.9°F |
| Hainan | 72.9°F | 72.1°F | 74.2°F |
| Haikou | 72.2°F | 71.3°F | 73.5°F |
| Taichung | 70.1°F | 69.7°F | 72.8°F |
| Taipei | 70.0°F | 69.4°F | 70.3°F |
| Shenzhen | 69.9°F | 68.3°F | 70.8°F |
| Hong Kong | 69.8°F | 68.9°F | 70.7°F |
| Macau | 68.8°F | 66.7°F | 70.1°F |
| Zhuhai | 68.7°F | 66.3°F | 70.1°F |
| Guangzhou | 68.5°F | 67.8°F | 70.0°F |
| Beihai | 68.4°F | 67.1°F | 71.0°F |
| Xiamen | 66.0°F | 64.4°F | 65.6°F |
| Ningbo | 57.7°F | 55.8°F | 56.4°F |
| Nantong | 57.5°F | 56.2°F | 55.9°F |
| Hangzhou | 56.7°F | 54.4°F | 57.3°F |
| Shanghai | 56.3°F | 54.1°F | 54.3°F |
| Suzhou | 50.4°F | 46.6°F | 50.3°F |
| Quingdao | 50.4°F | 50.6°F | 48.4°F |
| Weihai | 47.9°F | 46.4°F | 45.5°F |
| Dalian | 46.9°F | 48.2°F | 44.9°F |
| Yantai | 46.3°F | 44.7°F | 43.8°F |
| Qinhuangdao | 42.1°F | 42.8°F | 38.8°F |
| Tianjin | 41.5°F | 40.7°F | 38.3°F |
| Beidaihe | 40.8°F | 40.8°F | 37.9°F |
Charts below show average sea water temperature for China resorts with the warmest sea in December.
You can also check other months of the year to see sea temperature of China resorts at that time.
Places in China:
Name
°F
