Current sea water temperature:
+81.7°F
| Minimum sea water temperature in September: | 88.0°F |
| Maximum sea water temperature in September: | 81.3°F |
| Average sea water temperature in September: | 84.9°F |
| more information | |
14 days
forecast
forecast
| Hainan |
monthly
weather
weather
| Hainan |
Sea water temperature for the last 10 days:
| September 13 | 81.7°F | September 8 | 84.9°F |
| September 12 | 82.2°F | September 7 | 83.5°F |
| September 11 | 82.9°F | September 6 | 82.6°F |
| September 10 | 84.7°F | September 5 | 82.6°F |
| September 9 | 85.5°F | September 4 | 83.3°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 86.6°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:
2026
2025
2024
The average sea water temperature in August of 2026 was 85.8°F. The highest and lowest sea temperatures during the month were 87.4°F and 83.7°F.
current
weather
weather
| Hainan |
weather in
September
September
| Hainan |
Best time for vacation in Hainan
Hainan on a weather map
Places in China:
Name
°F
24 Hours Forecast
Hainan
Local time: 01:35
September 14, monday
0300
70°F
W
4 mph
4 mph
0600
70°F
NW
4 mph
4 mph
0900
72°F
NW
4 mph
4 mph
1200
77°F
NW
8 mph
8 mph
1500
73°F
NW
6 mph
6 mph
1800
72°F
NW
4 mph
4 mph
2100
72°F
NW
2 mph
2 mph
September 15, tuesday
0000
72°F
N
3 mph
3 mph
