All data are in degrees Fahrenheit

en
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.
Sea temperature in Charleston now

48.0

°F

April 18, 01:05

Trend:

increasing

Yesterday:

48.0°F

Tomorrow:

48.1°F

Sunrise:

06:14

Sunset:

19:39

Day Length:

13 h. 25 min.

Charleston in April

Minimum:

40.6°F

Average:

42.9°F

Maximum:

45.8°F

Sea water temperature in Charleston today

As of now, in Charleston, the water temperature is 48.0°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 2.4°F lower 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

The water temperature today is above average for the last two weeks, showing a small increase in temperature. It is also close to the historical minimum temperature for this date. The maximum temperature recorded for this date was 56.9°F on 2023, while the historical minimum was 45.7°F on 2018.

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 histoorical minimum and others when it was close to the historical maximum. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 48.4°F. Both minimum and maximum temperatures expected to be close to the average, offering a week of stable water conditions.

Daily water temperature in Charleston

Date Current Year

actual* / forecast**

 last year 10 years average
Apr 4 48.1°F 45.4°F 45.6°F
Apr 5 48.0°F 45.4°F 46.1°F
Apr 6 48.0°F 44.7°F 45.8°F
Apr 7 47.7°F 46.1°F 46.2°F
Apr 8 47.5°F 45.9°F 46.6°F
Apr 9 48.3°F 46.6°F 47.0°F
Apr 10 47.8°F 46.9°F 46.8°F
Apr 11 48.3°F 48.2°F 47.4°F
Apr 12 47.9°F 45.0°F 47.1°F
Apr 13 47.6°F 46.6°F 47.8°F
Apr 14 46.9°F 50.1°F 48.5°F
Apr 15 47.0°F 49.7°F 49.1°F
Apr 16 47.6°F 53.3°F 50.1°F
Apr 17 48.0°F 53.7°F 50.4°F
Apr 18 48.0°F 52.1°F 50.4°F
Apr 19 48.1°F 51.7°F 50.5°F
Apr 20 48.0°F 52.1°F 50.4°F
Apr 21 48.3°F 53.6°F 50.7°F
Apr 22 48.2°F 51.8°F 50.6°F
Apr 23 48.4°F 52.1°F 50.8°F
Apr 24 48.6°F 52.9°F 51.0°F
Apr 25 48.9°F 53.9°F 51.3°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

January

February

March

April

May

June

July

August

September

October

November

December

In Charleston, the months July through August offer comfortable swimming conditions, which amounts to 68 swimming days.
The warmest water in Charleston was recorded on July 20, 2020, reaching a 81.8°F. While the coldest temperature occurred on January 19, 2022, dipping to 33.6°F. The average readings by season are 41.8°F in Winter, 49.4°F in Spring, 73.2°F in Summer, and 63.4°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Staten Island 47.4°F 5mi
Coney Island 45.8°F 13mi
Jersey City 47.3°F 16mi
Brooklyn 45.8°F 17mi
New York City 47.3°F 17mi

* current water temperature in this city

** straight line distance from Charleston