Current sea water temperature:
+70.9°F
| Minimum sea water temperature in January: | 75.0°F |
| Maximum sea water temperature in January: | 65.1°F |
| Average sea water temperature in January: | 69.6°F |
| more information | |
14 days
forecast
forecast
| Hainan |
monthly
weather
weather
| Hainan |
Sea water temperature for the last 10 days:
| January 2 | 70.9°F | December 28 | 71.8°F |
| January 1 | 71.1°F | December 27 | 72.1°F |
| December 31 | 71.1°F | December 26 | 72.5°F |
| December 30 | 71.4°F | December 25 | 72.7°F |
| December 29 | 71.6°F | December 24 | 73.0°F |
Monthly sea water temperature, °F
When is the warmest sea in Hainan?
Based on the data about daily sea water temperature for the last three years the warmest sea in Hainan was noticed in July, June and August.
Monthly Sea Temperatures in Hainan, °F
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.
Sea water temperature in June, °F
Show year:
2025
2024
2023
The average sea water temperature in June of 2025 was 86.1°F. The highest and lowest sea temperatures during the month were 87.1°F and 85.5°F.
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 86.2°F. The highest and lowest sea temperatures during the month were 87.6°F and 84.4°F.
current
weather
weather
| Hainan |
weather in
January
January
| Hainan |
Best time for vacation in Hainan
Hainan on a weather map
Places in China:
Name
°F
24 Hours Forecast
Hainan
Local time: 12:17
January 03, saturday
1500
68°F
W
9 mph
9 mph
1800
63°F
W
9 mph
9 mph
2100
59°F
NW
6 mph
6 mph
January 04, sunday
0000
57°F
NW
4 mph
4 mph
0300
55°F
NW
3 mph
3 mph
0600
57°F
NW
2 mph
2 mph
0900
63°F
W
4 mph
4 mph
1200
72°F
W
7 mph
7 mph
