Current sea water temperature:
+82.4°F
| Minimum sea water temperature in April: | 86.7°F |
| Maximum sea water temperature in April: | 68.4°F |
| Average sea water temperature in April: | 79.1°F |
| more information | |
14 days
forecast
forecast
| Hainan |
monthly
weather
weather
| Hainan |
Sea water temperature for the last 10 days:
| April 21 | 82.4°F | April 16 | 84.6°F |
| April 20 | 82.6°F | April 15 | 84.6°F |
| April 19 | 82.4°F | April 14 | 83.3°F |
| April 18 | 83.1°F | April 13 | 82.9°F |
| April 17 | 83.8°F | April 12 | 82.9°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
April
April
| Hainan |
Best time for vacation in Hainan
Hainan on a weather map
Places in China:
Name
°F
24 Hours Forecast
Hainan
Local time: 06:38
April 22, wednesday
0900
82°F
N
7 mph
7 mph
1200
95°F
N
7 mph
7 mph
1500
99°F
N
6 mph
6 mph
1800
79°F
SW
2 mph
2 mph
2100
77°F
NW
4 mph
4 mph
April 23, thursday
0000
73°F
N
6 mph
6 mph
0300
72°F
N
4 mph
4 mph
0600
70°F
N
4 mph
4 mph
