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 14.53°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.

58.2

°F

December 21, 12:47

Trend:

increasing

Yesterday:

58.1°F

Tomorrow:

58.4°F

Sunrise:

07:19

Sunset:

17:18

Day Length:

9 h. 59 min.

Charleston in December

Minimum:

51.9°F

Average:

57.7°F

Maximum:

63.5°F

Sea water temperature in Charleston today

As of now, in Charleston, the water temperature is 58.2°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 about the same as 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 notably higher than the average recorded over the past two weeks, indicating a significant warming 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 64.8°F on 2015, while the historical minimum was 53.1°F on 2023.

latest data

last year

Observations from the last two weeks indicate that the water temperature was in proximity to the lowest 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 57.5°F, the minimum temperature may reach 56.8°F, and the maximum might stay at 58.4°F.

Daily water temperature in Charleston

Date	Current Year actual* / forecast**	last year	10 years average
Dec 7	56.5°F	59.4°F	60.3°F
Dec 8	54.9°F	57.5°F	60.2°F
Dec 9	54.2°F	58.1°F	60.0°F
Dec 10	55.7°F	57.9°F	60.1°F
Dec 11	55.5°F	59.0°F	60.1°F
Dec 12	53.8°F	59.8°F	59.7°F
Dec 13	55.0°F	58.6°F	59.4°F
Dec 14	54.7°F	58.6°F	59.3°F
Dec 15	55.3°F	58.1°F	59.3°F
Dec 16	55.1°F	56.9°F	58.8°F
Dec 17	55.3°F	57.5°F	58.8°F
Dec 18	56.3°F	57.9°F	59.1°F
Dec 19	58.6°F	56.7°F	59.1°F
Dec 20	58.1°F	56.5°F	59.0°F
Dec 21	58.2°F	53.1°F	58.3°F
Dec 22	58.4°F	53.4°F	58.5°F
Dec 23	57.9°F	52.5°F	58.0°F
Dec 24	57.8°F	54.7°F	57.9°F
Dec 25	57.6°F	53.2°F	57.7°F
Dec 26	57.1°F	52.6°F	57.2°F
Dec 27	56.8°F	53.5°F	56.9°F
Dec 28	56.9°F	54.1°F	57.0°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 Charleston by month

In Charleston, the months May through October offer comfortable swimming conditions, which amounts to 156 swimming days.

The warmest water in Charleston was recorded on July 19, 2024, reaching a 87.3°F. While the coldest temperature occurred on December 29, 2022, dipping to 47.1°F. The average readings by season are 57.8°F in Winter, 67.1°F in Spring, 82.7°F in Summer, and 73.8°F in Autumn.