Average sea water temperature in December:
+72.9°F
| Minimum sea water temperature in December: | 80.6°F |
| Maximum sea water temperature in December: | 66.7°F |
Daily sea water temperature in December, °F
Show year:
2025
2024
2023
The average sea water temperature in December of 2025 was 72.9°F. The highest and lowest sea temperatures during the month were 73.6°F and 72.0°F.
Monthly sea water temperature in Hainan, °F
Which China resorts have warmest sea in December?
| Place name | December 2025 | December 2024 |
|---|---|---|
| Sanya | 77.3°F | 77.0°F |
| Dadunhai | 77.3°F | 77.0°F |
| Yalong Bay | 77.2°F | 76.5°F |
| Tainan | 76.5°F | 74.9°F |
| Hainan | 72.9°F | 72.1°F |
| Haikou | 72.2°F | 71.3°F |
| Taichung | 70.1°F | 69.7°F |
| Taipei | 70.0°F | 69.4°F |
| Shenzhen | 69.9°F | 68.3°F |
| Hong Kong | 69.8°F | 68.9°F |
| Macau | 68.8°F | 66.7°F |
| Zhuhai | 68.7°F | 66.3°F |
| Guangzhou | 68.5°F | 67.8°F |
| Beihai | 68.4°F | 67.1°F |
| Xiamen | 66.0°F | 64.4°F |
| Ningbo | 57.7°F | 55.8°F |
| Nantong | 57.5°F | 56.2°F |
| Hangzhou | 56.7°F | 54.4°F |
| Shanghai | 56.3°F | 54.1°F |
| Suzhou | 50.4°F | 46.6°F |
Best time for vacation in Hainan
Hainan on a weather map
Places in China:
Name
°F
24 Hours Forecast
Hainan
Local time: 14:28
December 25, thursday
1500
64°F
S
7 mph
7 mph
1800
61°F
S
6 mph
6 mph
2100
59°F
SW
6 mph
6 mph
December 26, friday
0000
57°F
SW
4 mph
4 mph
0300
57°F
SW
6 mph
6 mph
0600
57°F
W
4 mph
4 mph
0900
59°F
W
5 mph
5 mph
1200
68°F
W
8 mph
8 mph
