Current Sea Water Temperature:
+75.4°F
| Maximum Sea Water Temperature in February: | 80.4°F |
| Minimum Sea Water Temperature in February: | 66.4°F |
| Average water temperature in February: | 71.7°F |
| detailed information | |
Sea Water Temperature for the Last 10 Days:
| February 18 | 75.4°F | February 13 | 72.8°F |
| February 17 | 75.6°F | February 12 | 72.4°F |
| February 16 | 76.4°F | February 11 | 72.6°F |
| February 15 | 75.8°F | February 10 | 72.6°F |
| February 14 | 73.8°F | February 09 | 72.4°F |
When is the Warmest Sea for Hainan?
According to our data for the last three years for Hainan the highest average sea water temperature was in July, June and August.
Average Water Temperature by Month, °F
Sea Water Temperature in July
The average sea surface temperature in July 2025 for Hainan was 90.2°F. The maximum and minimum values were 89.0°F and 91.8°F respectively.
Sea Water Temperature in June
The average sea surface temperature in June 2025 for Hainan was 90.2°F. The maximum and minimum values were 89.4°F and 91.2°F respectively.
Sea Water Temperature in August
The average sea surface temperature in August 2025 for Hainan was 90.3°F. The maximum and minimum values were 88.2°F and 91.8°F respectively.
China Resorts:
NAME
F°
| Beidaihe |  |
+30 |
| Beijing | |
+48 |
| Dadunhai |  |
+78 |
| Dalian | |
+28 |
| Guangzhou | |
+80 |
| Haikou |  |
+70 |
| Hainan | |
+72 |
| Hong Kong | |
+68 |
| Macau | |
+70 |
| Quingdao | |
+40 |
| Sanya | |
+78 |
| Shanghai | |
+52 |
| Shenzhen | |
+70 |
| Weihai | |
+30 |
| Yalong Bay | |
+78 |
Countries:
NAME
POPULARITY
24 Hours Weather Forecast
Hainan
Local time: 16:50
18 feb, wednesday
| 1800 |  |
72°F | W 9 mph |
| 2100 |  |
66°F | W 6 mph |
19 feb, thursday
| 0000 | |
66°F | NW 6 mph |
| 0300 | |
66°F | W 4 mph |
| 0600 | |
66°F | W 5 mph |
| 0900 |  |
70°F | NW 7 mph |
| 1200 | |
78°F | W 9 mph |
| 1500 | |
80°F | W 8 mph |