World Resorts China Hainan Weather

Hainan Sea Temperature in July

Average sea water temperature in July:
+86.6°F
Minimum sea water temperature in July: 89.8°F
Maximum sea water temperature in July: 82.2°F

Daily sea water temperature in July, °F

Show year:
2025
2024
2023

The average sea water temperature in July of 2025 was 86.1°F. The highest and lowest sea temperatures during the month were 87.6°F and 85.1°F.

Monthly sea water temperature in Hainan, °F

Which China resorts have warmest sea in July?

Place name July 2025 July 2024
Beihai 87.3°F 87.8°F
Suzhou 86.7°F 87.8°F
Hainan 86.1°F 87.1°F
Hangzhou 85.7°F 85.4°F
Taichung  85.3°F 87.5°F
Guangzhou 85.3°F 85.3°F
Tainan 85.2°F 87.4°F
Zhuhai 85.1°F 86.1°F
Xiamen 85.0°F 86.0°F
Shenzhen 85.0°F 86.2°F
Haikou 84.9°F 85.9°F
Macau 84.8°F 85.7°F
Taipei 84.7°F 86.9°F
Shanghai 84.6°F 84.0°F
Tianjin 84.6°F 82.0°F
Hong Kong 84.6°F 86.2°F
Yalong Bay 84.5°F 85.5°F
Sanya 84.4°F 85.5°F
Dadunhai 84.4°F 85.5°F
Nantong 84.4°F 82.6°F

Best time for vacation in Hainan

Sunniest months:
June 12 days
May 11 days
April 11 days
Warmest months:
June 89.9 °F
May 89.0 °F
July 88.9 °F
Warmest sea temp:
July 86.6 °F
June 86.3 °F
August 86.3 °F
Coldest months:
December 69.3 °F
January 69.8 °F
February 74.3 °F
Rainiest months:
September 15 days
August 14 days
July 14 days
Windiest months:
March 4.4 mph
April 4.4 mph
October 4.3 mph

Hainan on a weather map

Hainan
+68°F
W 3 mph
Feels like: +68°F
Precip.: 100%
Places in China:
Name
°F
+28°F
+68°F
+77°F
+70°F
+37°F
+70°F
+32°F
+70°F
+72°F
+68°F
+43°F
+37°F
+48°F
+66°F
+70°F
24 Hours Forecast
Hainan
Local time: 21:49
December 25, thursday
0000
66°F
NW
4 mph
0300
64°F
NW
3 mph
0600
64°F
W
3 mph
0900
68°F
SW
5 mph
1200
68°F
SW
6 mph
1500
66°F
S
6 mph
1800
64°F
SW
6 mph
2100
61°F
SW
8 mph
Units of measurement: °C / °F