What is the current water temperature in Charleston?

Q: What is the current water temperature in Charleston?

As of now, in Charleston, the water temperature is 11.13°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.

United States > Charleston

Water temperature in Charleston

Detailed information about the current water temperature in Charleston. 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.

52.0

°F

April 24, 21:49

Trend:

stable

Yesterday:

52.3°F

Tomorrow:

52.6°F

Sunrise:

06:06

Sunset:

19:45

Day Length:

13 h. 39 min.

Charleston in May

Minimum:

36.3°F

Average:

42.0°F

Maximum:

44.9°F

Sea water temperature in Charleston today

As of now, in Charleston, the water temperature is 52.0°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 rise a bit.

Recent sea temperature and forecast

Today's water temperature is slightly lower than the average registered over the last two weeks, indicating a slight cooling trend. It also aligns closely with the historical average temperature for this date, indicating a typical climate pattern. The maximum temperature recorded for this date was 56.0°F on 2023, while the historical minimum was 47.2°F on 2018.

latest data

last year

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 52.9°F, with minimum temperature starting at 52.4°F, while the maximum might reach 53.3°F.

Daily water temperature in Charleston

Date	Current Year actual* / forecast**	last year	10 years average
Apr 10	48.1°F	47.8°F	47.3°F
Apr 11	50.5°F	48.3°F	48.1°F
Apr 12	51.1°F	47.9°F	47.7°F
Apr 13	50.8°F	47.6°F	48.4°F
Apr 14	51.0°F	46.9°F	49.1°F
Apr 15	53.4°F	47.0°F	49.8°F
Apr 16	53.7°F	47.6°F	50.8°F
Apr 17	54.7°F	48.0°F	50.9°F
Apr 18	56.6°F	48.8°F	51.1°F
Apr 19	53.9°F	48.2°F	50.8°F
Apr 20	54.5°F	47.9°F	50.7°F
Apr 21	53.1°F	48.7°F	51.0°F
Apr 22	52.8°F	47.8°F	50.8°F
Apr 23	52.3°F	49.8°F	51.1°F
Apr 24	52.0°F	53.9°F	51.6°F
Apr 25	52.6°F	55.6°F	52.1°F
Apr 26	52.4°F	55.2°F	52.0°F
Apr 27	52.7°F	56.9°F	52.3°F
Apr 28	52.8°F	54.8°F	52.4°F
Apr 29	53.1°F	54.3°F	52.6°F
Apr 30	53.2°F	55.8°F	52.8°F
May 1	53.3°F	55.2°F	52.9°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 Charleston by month

In Charleston, the months July through August offer comfortable swimming conditions, which amounts to 67 swimming days.

The warmest water in Charleston was recorded on July 20, 2020, reaching a 81.8°F. While the coldest temperature occurred on February 9, 2026, dipping to 32.0°F. The average readings by season are 41.4°F in Winter, 49.8°F in Spring, 73.5°F in Summer, and 63.3°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Staten Island	49.8°F	5mi
Coney Island	49.2°F	13mi
Jersey City	49.6°F	16mi
Brooklyn	49.1°F	17mi
New York City	49.6°F	17mi

* current water temperature in this city

** straight line distance from Charleston