World Resorts China Hainan Weather

Hainan sea water temperature

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

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

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.

Best time for vacation in Hainan

Sunniest months:
June 12 days
April 12 days
March 11 days
Warmest months:
June 90.0 °F
May 88.9 °F
July 88.7 °F
Warmest sea temp:
July 86.6 °F
June 86.4 °F
August 86.3 °F
Coldest months:
December 69.5 °F
January 70.0 °F
February 74.7 °F
Rainiest months:
August 14 days
July 14 days
May 14 days
Windiest months:
April 4.5 mph
March 4.4 mph
October 4.3 mph

Hainan on a weather map

Hainan
+73°F
N 3 mph
Feels like: +77°F
Precip.: 20%
Places in China:
Name
°F
+45°F
+63°F
+75°F
+79°F
+77°F
+64°F
+81°F
+57°F
+77°F
+77°F
+73°F
+64°F
+68°F
+79°F
+77°F
24 Hours Forecast
Hainan
Local time: 05:51
October 04, sunday
0600
73°F
N
3 mph
0900
81°F
N
3 mph
1200
90°F
SW
2 mph
1500
88°F
S
5 mph
1800
81°F
S
1 mph
2100
77°F
S
2 mph
October 05, monday
0000
75°F
N
1 mph
0300
73°F
N
2 mph
Units of measurement: °C / °F