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Water temperature in Shanghai

Detailed information about the current water temperature in Shanghai. The trend over the last two weeks, daily averages, and precise forecast of the water temperature changes. Gain a deeper understanding of seasonal dynamics with monthly statistical analyses covering recent years.
Sea temperature in Shanghai now

46.8

°F

January 24, 01:36

Trend:

decreasing

Yesterday:

47.2°F

Tomorrow:

46.7°F

Sunrise:

06:51

Sunset:

17:22

Day Length:

10 h. 31 min.

Shanghai in January

Minimum:

46.8°F

Average:

49.5°F

Maximum:

52.8°F

Sea water temperature in Shanghai today

As of now, in Shanghai, the water temperature is 46.8°F. Swimming in water of this temperature is considered as extremely cold, and there's a substantial risk of hypothermia if exposed for more than a brief duration. Today's reading is 0.8°F higher than the average recorded on this particular day in recent years. The sea temperature remains approximately unchanged from yesterday. According to the forecast, we expect the temperature to stay about the same.

Recent sea temperature and forecast

Today's water temperature is considerably lower than the average registered over the last two weeks, indicating a slight cooling trend. It also falls within the range of the average temperature recorded for this date, suggesting a consistent weather trend. The maximum temperature recorded for this date was 47.7°F on 2020, while the historical minimum was 44.0°F on 2016.

The water temperature over the last two weeks displayed soome variability. While the two week average stayed close to the historical average, there were some days when the temperature was close to the maximum recorded over the past years. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 46.8°F. Both minimum and maximum temperatures expected to be close to the average, offering a week of stable water conditions.

Daily water temperature in Shanghai

Date Current Year

actual* / forecast**

 last year 10 years average
Jan 10 50.4°F 49.3°F 48.3°F
Jan 11 49.8°F 48.5°F 48.1°F
Jan 12 49.5°F 48.6°F 48.0°F
Jan 13 49.5°F 48.1°F 47.5°F
Jan 14 49.0°F 47.9°F 47.4°F
Jan 15 47.3°F 47.5°F 47.3°F
Jan 16 47.6°F 48.2°F 47.2°F
Jan 17 48.5°F 47.5°F 46.9°F
Jan 18 48.1°F 47.1°F 46.9°F
Jan 19 47.5°F 47.0°F 46.9°F
Jan 20 47.3°F 48.6°F 46.9°F
Jan 21 46.7°F 48.3°F 46.9°F
Jan 22 46.3°F 47.8°F 46.6°F
Jan 23 47.2°F 47.2°F 46.4°F
Jan 24 46.8°F 46.7°F 46.0°F
Jan 25 46.7°F 46.5°F 45.9°F
Jan 26 46.6°F 46.2°F 45.8°F
Jan 27 46.7°F 47.5°F 45.9°F
Jan 28 46.8°F 48.2°F 46.0°F
Jan 29 46.9°F 47.8°F 46.1°F
Jan 30 46.8°F 47.5°F 46.0°F
Jan 31 47.0°F 47.7°F 46.2°F

* actual - actual temperature values

** forecast - projected values for the next week

Real-time coastal temperatures could deviate by several degrees from the provided readings. These deviations often become evident following intense rainfall or strong winds.

Our forecasting methodology leverages a mathematical model, that uses current water and weather conditions, historical records, wind intensity and direction.

Sea water temperature in Shanghai by month

January

February

March

April

May

June

July

August

September

October

November

December

In Shanghai, the months June through September offer comfortable swimming conditions, which amounts to 130 swimming days.
The warmest water in Shanghai was recorded on August 30, 2025, reaching a 89.8°F. While the coldest temperature occurred on February 8, 2016, dipping to 42.0°F. The average readings by season are 49.4°F in Winter, 60.5°F in Spring, 81.8°F in Summer, and 72.9°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Zhabei 47.4°F 3mi
Suzhou 44.4°F 51mi
Changshu 50.4°F 51mi
Nantong 49.8°F 66mi
Zhangjiagang 49.8°F 70mi

* current water temperature in this city

** straight line distance from Shanghai