In September warmest sea in China is usually observed in the following locations: Beihai, Taichung , Shanghai.
Table below shows the average sea water temperature for marine resorts of China in September for the last three years.
| Place name | September 2025 | September 2024 | September 2023 |
|---|---|---|---|
| Beihai | 86.0°F | 86.0°F | 85.2°F |
| Taichung | 85.9°F | 86.0°F | 84.9°F |
| Shanghai | 85.4°F | 85.0°F | 81.6°F |
| Tainan | 85.4°F | 86.2°F | 84.7°F |
| Zhuhai | 85.3°F | 85.4°F | 84.0°F |
| Suzhou | 85.2°F | 84.6°F | 82.3°F |
| Nantong | 85.1°F | 85.4°F | 81.3°F |
| Taipei | 85.1°F | 85.0°F | 83.6°F |
| Macau | 85.0°F | 85.4°F | 83.9°F |
| Xiamen | 85.0°F | 84.0°F | 82.7°F |
| Shenzhen | 85.0°F | 84.7°F | 83.6°F |
| Guangzhou | 84.8°F | 85.5°F | 83.7°F |
| Hong Kong | 84.5°F | 84.3°F | 82.7°F |
| Hainan | 84.5°F | 85.5°F | 85.5°F |
| Haikou | 84.3°F | 85.0°F | 84.7°F |
| Yalong Bay | 84.2°F | 85.5°F | 85.3°F |
| Sanya | 84.1°F | 85.5°F | 85.0°F |
| Dadunhai | 84.1°F | 85.5°F | 85.0°F |
| Hangzhou | 84.0°F | 83.6°F | 80.7°F |
| Ningbo | 83.8°F | 83.4°F | 81.7°F |
| Quingdao | 79.0°F | 79.7°F | 78.5°F |
| Beidaihe | 77.0°F | 75.5°F | 76.2°F |
| Yantai | 77.0°F | 77.4°F | 77.2°F |
| Weihai | 76.9°F | 77.6°F | 76.9°F |
| Qinhuangdao | 76.8°F | 75.8°F | 76.5°F |
| Tianjin | 76.3°F | 74.9°F | 75.2°F |
| Dalian | 75.3°F | 74.9°F | 75.5°F |
Charts below show average sea water temperature for China resorts with the warmest sea in September.
You can also check other months of the year to see sea temperature of China resorts at that time.
Places in China:
Name
°F
