Current sea water temperature:
+86.5°F
| Minimum sea water temperature in October: | 86.5°F |
| Maximum sea water temperature in October: | 78.1°F |
| Average sea water temperature in October: | 82.3°F |
| more information | |
14 days
forecast
forecast
| Hainan |
monthly
weather
weather
| Hainan |
Sea water temperature for the last 10 days:
| October 3 | 86.5°F | September 28 | 85.1°F |
| October 2 | 86.5°F | September 27 | 84.4°F |
| October 1 | 86.0°F | September 26 | 82.8°F |
| September 30 | 85.6°F | September 25 | 82.6°F |
| September 29 | 85.3°F | September 24 | 82.4°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
October
October
| Hainan |
Best time for vacation in Hainan
Hainan on a weather map
Places in China:
Name
°F
24 Hours Forecast
Hainan
Local time: 05:51
October 04, sunday
0600

73°F
N
3 mph
3 mph
0900

81°F
N
3 mph
3 mph
1200

90°F
SW
2 mph
2 mph
1500

88°F
S
5 mph
5 mph
1800

81°F
S
1 mph
1 mph
2100

77°F
S
2 mph
2 mph
October 05, monday
0000

75°F
N
1 mph
1 mph
0300

73°F
N
2 mph
2 mph




























