What is the current water temperature in Nantong?

Q: What is the current water temperature in Nantong?

As of now, in Nantong, the water temperature is 9.04°C. 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.

China > Nantong

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.

48.3

°F

January 29, 21:54

Trend:

decreasing

Yesterday:

48.5°F

Tomorrow:

48.1°F

Sunrise:

06:53

Sunset:

17:27

Day Length:

10 h. 34 min.

Nantong in February

Minimum:

47.6°F

Average:

49.9°F

Maximum:

53.3°F

Sea water temperature in Nantong today

As of now, in Nantong, the water temperature is 48.3°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 0.5°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

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 49.7°F on 2025, while the historical minimum was 45.4°F on 2016.

latest data

last year

Observations from the last two weeks indicate that the water temperature was in proximity to the highest values recorded on those days in the past. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 47.1°F, the minimum temperature may reach 46.5°F, and the maximum might stay at 48.1°F.

Daily water temperature in Nantong

Date	Current Year actual* / forecast**	last year	10 years average
Jan 15	50.0°F	48.8°F	48.5°F
Jan 16	50.5°F	49.0°F	48.7°F
Jan 17	50.3°F	49.4°F	48.6°F
Jan 18	51.4°F	49.3°F	48.7°F
Jan 19	51.1°F	50.3°F	48.9°F
Jan 20	50.7°F	47.5°F	48.5°F
Jan 21	50.5°F	49.6°F	48.5°F
Jan 22	50.4°F	49.7°F	48.6°F
Jan 23	49.9°F	49.5°F	48.5°F
Jan 24	49.9°F	49.5°F	48.4°F
Jan 25	48.9°F	49.6°F	48.3°F
Jan 26	49.7°F	49.7°F	48.5°F
Jan 27	49.4°F	49.8°F	48.2°F
Jan 28	48.5°F	50.0°F	47.9°F
Jan 29	48.3°F	49.7°F	47.8°F
Jan 30	48.1°F	49.7°F	47.6°F
Jan 31	47.7°F	48.8°F	47.2°F
Feb 1	47.3°F	48.4°F	46.8°F
Feb 2	47.2°F	48.0°F	46.7°F
Feb 3	46.7°F	47.4°F	46.3°F
Feb 4	46.6°F	48.1°F	46.1°F
Feb 5	46.5°F	48.5°F	46.0°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 50.5°F in Winter, 60.4°F in Spring, 81.5°F in Summer, and 73.0°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Zhangjiagang	49.2°F	23mi
Changshu	46.8°F	28mi
Jiangyin	49.6°F	37mi
Wuxi	41.8°F	47mi
Suzhou	42.9°F	53mi
Changzhou	49.8°F	57mi
Zhabei	47.3°F	63mi
Shanghai	47.1°F	66mi

* current water temperature in this city

** straight line distance from Nantong