Measurements:
°C
°F
Sanya
82°F
E 16 mph
Feels like: 88°F
Precip: 100%
World Resorts China Sanya Weather

Sanya Sea Water Temperature

Current Sea Water Temperature:
+88.8°F
Maximum Sea Water Temperature in July: 91.4°F
Minimum Sea Water Temperature in July: 84.0°F
Average water temperature in July: 88.6°F

Sea Water Temperature for the Last 10 Days:

July 20 88.8°F July 15 89.0°F
July 19 89.0°F July 14 88.2°F
July 18 89.0°F July 13 88.4°F
July 17 89.6°F July 12 88.6°F
July 16 88.8°F July 11 88.6°F

When is the Warmest Sea for Sanya?

According to our data for the last three years for Sanya the highest average sea water temperature was in June, September and July.

Average Water Temperature by Month, °F

Sea Water Temperature in June

Select Year: 2025 2024 2023

The average sea surface temperature in June 2025 for Sanya was 89.2°F. The maximum and minimum values were 87.8°F and 91.0°F respectively.

Sea Water Temperature in September

Select Year: 2024 2023 2022

The average sea surface temperature in September 2024 for Sanya was 89.4°F. The maximum and minimum values were 88.0°F and 91.4°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Sanya was 88.9°F. The maximum and minimum values were 88.2°F and 89.6°F respectively.

Best Time to Visit Sanya
The most sunny months:
January 12 days
August 12 days
December 12 days
The most warm months:
June 93.6 °F
July 93.5 °F
August 93.5 °F
Warmest sea temperature:
June 89.1 °F
September 88.7 °F
July 88.6 °F
The most cold months:
January 79.0 °F
December 80.6 °F
February 80.7 °F
The most rainy months:
July 9 days
September 9 days
August 7 days
The most windy months:
January 8 mph
December 8 mph
November 8 mph

Sanya on the Weather Map

China Resorts:
NAME
Beidaihe +80
Beijing +80
Dadunhai +82
Dalian +82
Guangzhou +84
Hainan +76
Hangzhou +90
Hong Kong +86
Macau +86
Quingdao +86
Sanya +82
Shanghai +88
Shenzhen +84
Weihai +84
Yalong Bay +82
24 Hours Weather Forecast
Sanya
Local time: 18:26
20 jul, sunday
2100 80°F
E
17 mph
21 jul, monday
0000 82°F
E
19 mph
0300 82°F
E
24 mph
0600 82°F
E
24 mph
0900 82°F
NE
25 mph
1200 82°F
E
26 mph
1500 82°F
E
25 mph
1800 84°F
NE
21 mph