Average sea water temperature in March:
+73.4°F
| Minimum sea water temperature in March: | 80.4°F |
| Maximum sea water temperature in March: | 66.2°F |
Daily sea water temperature in March, °F
Show year:
2026
2025
2024
The average sea water temperature in March of 2026 was 75.3°F. The highest and lowest sea temperatures during the month were 79.5°F and 72.5°F.
Monthly sea water temperature in Hainan, °F
Which China resorts have warmest sea in March?
| Place name | March 2026 | March 2025 |
|---|---|---|
| Sanya | 76.4°F | 74.4°F |
| Dadunhai | 76.4°F | 74.4°F |
| Yalong Bay | 76.1°F | 74.3°F |
| Tainan | 75.9°F | 76.0°F |
| Hainan | 75.3°F | 73.5°F |
| Haikou | 72.2°F | 69.9°F |
| Beihai | 72.0°F | 70.5°F |
| Taichung | 71.0°F | 68.7°F |
| Shenzhen | 70.3°F | 67.8°F |
| Zhuhai | 69.3°F | 67.1°F |
| Macau | 69.2°F | 67.1°F |
| Hong Kong | 68.9°F | 65.5°F |
| Taipei | 68.8°F | 65.3°F |
| Guangzhou | 68.6°F | 69.0°F |
| Xiamen | 62.3°F | 62.6°F |
| Hangzhou | 52.5°F | 55.8°F |
| Suzhou | 52.4°F | 53.6°F |
| Nantong | 51.8°F | 52.8°F |
| Shanghai | 50.8°F | 51.9°F |
| Ningbo | 49.4°F | 50.4°F |
Best time for vacation in Hainan
Hainan on a weather map
Places in China:
Name
°F
24 Hours Forecast
Hainan
Local time: 19:20
March 17, tuesday
2100
70°F
NW
2 mph
2 mph
March 18, wednesday
0000
66°F
NW
4 mph
4 mph
0300
64°F
NW
4 mph
4 mph
0600
63°F
NW
4 mph
4 mph
0900
73°F
NW
2 mph
2 mph
1200
84°F
W
3 mph
3 mph
1500
88°F
SW
6 mph
6 mph
1800
79°F
S
2 mph
2 mph
