Measurements:
°C
°F
Shanghai
86°F
SW 12 mph
Feels like: 88°F
Precip: 2%
World Resorts China Shanghai Weather

Shanghai Sea Water Temperature

Current Sea Water Temperature:
+84.2°F
Maximum Sea Water Temperature in September: 92.8°F
Minimum Sea Water Temperature in September: 76.6°F
Average water temperature in September: 84.1°F

Sea Water Temperature for the Last 10 Days:

September 13 84.2°F September 08 88.0°F
September 12 85.6°F September 07 88.4°F
September 11 86.0°F September 06 88.8°F
September 10 86.4°F September 05 89.0°F
September 09 87.2°F September 04 89.0°F

When is the Warmest Sea for Shanghai?

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

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2026 2025 2024

The average sea surface temperature in August 2026 for Shanghai was 88.3°F. The maximum and minimum values were 85.4°F and 92.6°F respectively.

Sea Water Temperature in July

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for Shanghai was 87.2°F. The maximum and minimum values were 80.6°F and 91.4°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Shanghai was 89.4°F. The maximum and minimum values were 85.0°F and 92.8°F respectively.

Best Time to Visit Shanghai
The most sunny months:
December 16 days
January 15 days
May 14 days
The most warm months:
August 94.9 °F
July 94.4 °F
September 86.5 °F
Warmest sea temperature:
August 88.8 °F
July 86.3 °F
September 84.0 °F
The most cold months:
January 48.8 °F
February 50.8 °F
December 53.0 °F
The most rainy months:
June 8 days
July 7 days
August 6 days
The most windy months:
May 9 mph
August 9 mph
April 9 mph

Shanghai on the Weather Map

China Resorts:
NAME
Beidaihe +80
Beijing +84
Dadunhai +78
Dalian +76
Guangzhou +96
Hainan +72
Hong Kong +88
Macau +88
Quingdao +76
Sanya +78
Shanghai +86
Shenzhen +88
Weihai +74
Yalong Bay +78
Yantai +74
24 Hours Weather Forecast
Shanghai
Local time: 14:55
14 sep, monday
1500 86°F
SW
12 mph
1800 80°F
SW
9 mph
2100 78°F
S
6 mph
15 sep, tuesday
0000 76°F
S
6 mph
0300 76°F
S
6 mph
0600 74°F
SW
6 mph
0900 84°F
SW
11 mph
1200 86°F
SW
11 mph