Current sea water temperature:
+86.4°F
| Minimum sea water temperature in July: | 89.8°F |
| Maximum sea water temperature in July: | 82.2°F |
| Average sea water temperature in July: | 86.6°F |
| more information | |
14 days
forecast
forecast
| Hainan |
monthly
weather
weather
| Hainan |
Sea water temperature for the last 10 days:
| July 15 | 86.4°F | July 10 | 85.8°F |
| July 14 | 86.5°F | July 9 | 85.5°F |
| July 13 | 86.4°F | July 8 | 85.5°F |
| July 12 | 86.5°F | July 7 | 86.2°F |
| July 11 | 86.0°F | July 6 | 86.5°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:
2026
2025
2024
The average sea water temperature in July of 2026 was 86.5°F. The highest and lowest sea temperatures during the month were 88.2°F and 85.5°F.
Sea water temperature in June, °F
Show year:
2026
2025
2024
The average sea water temperature in June of 2026 was 87.8°F. The highest and lowest sea temperatures during the month were 89.8°F and 86.0°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
July
July
| Hainan |
Best time for vacation in Hainan
Hainan on a weather map
Places in China:
Name
°F
24 Hours Forecast
Hainan
Local time: 17:14
July 15, wednesday
1800
82°F
N
4 mph
4 mph
2100
73°F
N
6 mph
6 mph
July 16, thursday
0000
73°F
N
4 mph
4 mph
0300
73°F
N
4 mph
4 mph
0600
73°F
N
4 mph
4 mph
0900
81°F
N
4 mph
4 mph
1200
82°F
N
2 mph
2 mph
1500
86°F
N
4 mph
4 mph
