All data are in degrees Fahrenheit

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Water temperature in Nantong

Detailed information about the current water temperature in Nantong. 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 Nantong now

72.2

°F

May 26, 04:58

Trend:

decreasing

Yesterday:

72.3°F

Tomorrow:

71.9°F

Sunrise:

04:53

Sunset:

18:54

Day Length:

14 h. 1 min.

Nantong in June

Minimum:

47.4°F

Average:

49.3°F

Maximum:

51.3°F

Sea water temperature in Nantong today

As of now, in Nantong, the water temperature is 72.2°F. Swimming in water of this temperature is seen as relatively warm and enjoyable for some individuals, although many might find it slightly too cool. 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 fall a bit.

Recent sea temperature and forecast

The water temperature today is above average for the last two weeks, showing a small increase in temperature. 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 74.6°F on 2025, while the historical minimum was 69.0°F on 2022.

Over the last two weeks, the water temperature has stayed slightly above than historical averages for those days. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 73.1°F, with minimum temperature starting at 71.9°F, while the maximum might reach 73.9°F.

Daily water temperature in Nantong

Date Current Year

actual* / forecast**

last year 10 years average
May 12 69.4°F 68.5°F 67.9°F
May 13 69.0°F 71.8°F 68.6°F
May 14 69.6°F 71.4°F 68.6°F
May 15 71.1°F 71.9°F 69.3°F
May 16 70.8°F 71.5°F 69.4°F
May 17 71.3°F 70.6°F 69.7°F
May 18 72.1°F 70.6°F 70.8°F
May 19 72.3°F 72.9°F 71.4°F
May 20 72.1°F 73.5°F 71.2°F
May 21 71.2°F 72.9°F 71.2°F
May 22 72.6°F 75.2°F 71.5°F
May 23 73.3°F 74.2°F 71.6°F
May 24 71.6°F 74.0°F 71.8°F
May 25 72.3°F 74.6°F 71.5°F
May 26 72.2°F 74.6°F 71.4°F
May 27 71.9°F 74.2°F 71.1°F
May 28 72.6°F 73.8°F 71.8°F
May 29 72.9°F 75.2°F 72.1°F
May 30 73.1°F 75.0°F 72.3°F
May 31 73.5°F 74.8°F 72.6°F
Jun 1 73.9°F 74.6°F 73.0°F
Jun 2 73.9°F 74.0°F 73.1°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 Nantong by month

In Nantong, the months June through September offer comfortable swimming conditions, which amounts to 131 swimming days.
The warmest water in Nantong was recorded on August 13, 2022, reaching a 91.2°F. While the coldest temperature occurred on February 8, 2016, dipping to 41.8°F. The average readings by season are 50.6°F in Winter, 60.6°F in Spring, 81.5°F in Summer, and 73.0°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Zhangjiagang 71.1°F 23mi
Changshu 72.0°F 28mi
Jiangyin 71.6°F 37mi
Wuxi 74.1°F 47mi
Suzhou 75.2°F 53mi
Changzhou 72.5°F 57mi
Zhabei 73.1°F 63mi
Shanghai 73.2°F 66mi

* current water temperature in this city

** straight line distance from Nantong