Average sea water temperature in October:
+82.3°F
| Minimum sea water temperature in October: | 86.4°F |
| Maximum sea water temperature in October: | 78.1°F |
Daily sea water temperature in October, °F
Show year:
2025
2024
2023
The average sea water temperature in October of 2025 was 82.6°F. The highest and lowest sea temperatures during the month were 84.7°F and 80.4°F.
Monthly sea water temperature in Hainan, °F
Which China resorts have warmest sea in October?
| Place name | October 2025 | October 2024 |
|---|---|---|
| Tainan | 84.1°F | 82.7°F |
| Shenzhen | 83.6°F | 82.7°F |
| Sanya | 83.6°F | 83.4°F |
| Dadunhai | 83.6°F | 83.4°F |
| Zhuhai | 83.6°F | 82.3°F |
| Xiamen | 83.4°F | 80.2°F |
| Yalong Bay | 83.4°F | 83.1°F |
| Taichung | 83.3°F | 80.8°F |
| Macau | 83.3°F | 82.2°F |
| Hong Kong | 83.0°F | 82.4°F |
| Taipei | 82.9°F | 79.7°F |
| Beihai | 82.6°F | 81.2°F |
| Guangzhou | 82.6°F | 81.4°F |
| Hainan | 82.6°F | 82.5°F |
| Haikou | 82.6°F | 82.4°F |
| Hangzhou | 79.2°F | 73.0°F |
| Ningbo | 78.9°F | 74.7°F |
| Suzhou | 76.8°F | 72.6°F |
| Shanghai | 76.3°F | 74.0°F |
| Nantong | 74.7°F | 74.9°F |
Best time for vacation in Hainan
Hainan on a weather map
Places in China:
Name
°F
24 Hours Forecast
Hainan
Local time: 15:27
December 23, tuesday
1800
70°F
W
7 mph
7 mph
2100
66°F
NW
5 mph
5 mph
December 24, wednesday
0000
64°F
NW
4 mph
4 mph
0300
64°F
NW
3 mph
3 mph
0600
64°F
NW
4 mph
4 mph
0900
70°F
NW
5 mph
5 mph
1200
77°F
W
6 mph
6 mph
1500
81°F
W
6 mph
6 mph
