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 15.04°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.

59.1

°F

October 27, 17:19

Trend:

decreasing

Yesterday:

59.3°F

Tomorrow:

58.9°F

Sunrise:

07:21

Sunset:

18:00

Day Length:

10 h. 39 min.

Charleston in November

Minimum:

36.6°F

Average:

40.8°F

Maximum:

45.1°F

Sea water temperature in Charleston today

As of now, in Charleston, the water temperature is 59.1°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 1.1°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 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 aligns closely with the historical average temperature for this date, indicating a typical climate pattern. The maximum temperature recorded for this date was 63.6°F on 2017, while the historical minimum was 57.8°F on 2025.

latest data

last year

Over the past two weeks, the water temperature has closely aligned with historical averages for those days. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 57.8°F, the minimum temperature may reach 57.0°F, and the maximum might stay at 58.9°F.

Daily water temperature in Charleston

Date	Current Year actual* / forecast**	last year	10 years average
Oct 13	64.1°F	65.8°F	64.7°F
Oct 14	64.3°F	65.4°F	64.2°F
Oct 15	64.8°F	65.0°F	64.3°F
Oct 16	64.5°F	63.9°F	63.7°F
Oct 17	65.0°F	62.0°F	63.7°F
Oct 18	63.2°F	60.9°F	62.8°F
Oct 19	61.4°F	60.4°F	62.4°F
Oct 20	59.6°F	60.4°F	61.7°F
Oct 21	61.4°F	61.0°F	61.6°F
Oct 22	61.2°F	60.9°F	61.3°F
Oct 23	60.2°F	60.9°F	61.1°F
Oct 24	60.4°F	60.1°F	60.7°F
Oct 25	59.6°F	59.6°F	60.3°F
Oct 26	59.3°F	58.9°F	60.2°F
Oct 27	59.1°F	57.8°F	60.2°F
Oct 28	58.9°F	57.9°F	60.0°F
Oct 29	58.6°F	57.9°F	59.7°F
Oct 30	58.1°F	57.7°F	59.2°F
Oct 31	57.8°F	57.4°F	58.9°F
Nov 1	57.2°F	56.0°F	58.3°F
Nov 2	57.3°F	55.3°F	58.4°F
Nov 3	57.0°F	55.5°F	58.1°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 Charleston by month

In Charleston, the months July through August offer comfortable swimming conditions, which amounts to 71 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	59.7°F	5mi
Coney Island	60.3°F	13mi
Jersey City	59.5°F	16mi
Brooklyn	59.9°F	17mi
New York City	59.5°F	17mi

* current water temperature in this city

** straight line distance from Charleston