Measurements:
°C
°F
Shanghai
42°F
SW 11 mph
Feels like: 34°F
Precip: 65%
World Resorts China Shanghai Weather

Shanghai Sea Water Temperature

Current Sea Water Temperature:
+46.8°F
Maximum Sea Water Temperature in January: 53.2°F
Minimum Sea Water Temperature in January: 40.6°F
Average water temperature in January: 46.4°F

Sea Water Temperature for the Last 10 Days:

January 30 46.8°F January 25 47.4°F
January 29 46.6°F January 24 46.0°F
January 28 47.0°F January 23 46.8°F
January 27 48.0°F January 22 45.8°F
January 26 48.2°F January 21 46.2°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: 2025 2024 2023

The average sea surface temperature in August 2025 for Shanghai was 91.1°F. The maximum and minimum values were 88.2°F and 94.0°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Shanghai was 88.4°F. The maximum and minimum values were 87.2°F and 89.8°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 95.1 °F
July 94.4 °F
September 86.5 °F
Warmest sea temperature:
August 88.8 °F
July 86.2 °F
September 84.0 °F
The most cold months:
January 48.8 °F
February 50.6 °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
April 9 mph
February 9 mph

Shanghai on the Weather Map

China Resorts:
NAME
Beidaihe +24
Beijing +30
Dadunhai +76
Dalian +20
Guangzhou +74
Haikou +72
Hainan +76
Hong Kong +68
Macau +68
Quingdao +32
Sanya +76
Shanghai +42
Shenzhen +68
Weihai +26
Yalong Bay +76
24 Hours Weather Forecast
Shanghai
Local time: 18:12
30 jan, friday
2100 42°F
SW
8 mph
31 jan, saturday
0000 38°F
SW
9 mph
0300 38°F
SW
8 mph
0600 38°F
SW
9 mph
0900 38°F
SW
8 mph
1200 42°F
SW
8 mph
1500 38°F
S
8 mph
1800 40°F
S
9 mph