All data are in degrees Fahrenheit

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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

62.7

°F

November 29, 05:57

Trend:

decreasing

Yesterday:

63.2°F

Tomorrow:

62.3°F

Sunrise:

07:02

Sunset:

17:14

Day Length:

10 h. 12 min.

Charleston in December

Minimum:

51.0°F

Average:

56.5°F

Maximum:

63.4°F

Sea water temperature in Charleston today

As of now, in Charleston, the water temperature is 62.7°F. Swimming in water of this temperature is generally concidered to be cool, and most people won't really enjoy it. Today's reading is 1.0°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 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 66.1°F on 2020, while the historical minimum was 58.6°F on 2019.

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 61.6°F, the minimum temperature may reach 61.3°F, and the maximum might stay at 62.3°F.

Daily water temperature in Charleston

Date Current Year

actual* / forecast**

last year 10 years average
Nov 15 60.2°F 69.6°F 65.7°F
Nov 16 59.9°F 68.4°F 65.6°F
Nov 17 60.4°F 66.6°F 65.2°F
Nov 18 60.4°F 65.5°F 64.8°F
Nov 19 61.0°F 66.5°F 64.4°F
Nov 20 60.3°F 67.3°F 64.1°F
Nov 21 60.9°F 67.4°F 63.9°F
Nov 22 61.2°F 67.4°F 63.5°F
Nov 23 62.9°F 65.4°F 62.8°F
Nov 24 63.8°F 62.6°F 62.0°F
Nov 25 61.9°F 61.6°F 61.5°F
Nov 26 64.0°F 61.1°F 61.6°F
Nov 27 63.4°F 62.9°F 61.6°F
Nov 28 63.2°F 62.6°F 61.7°F
Nov 29 62.7°F 64.1°F 61.7°F
Nov 30 62.3°F 64.1°F 61.3°F
Dec 1 61.8°F 63.1°F 60.8°F
Dec 2 61.6°F 61.8°F 60.7°F
Dec 3 61.5°F 60.5°F 60.6°F
Dec 4 61.7°F 59.2°F 60.7°F
Dec 5 61.3°F 57.6°F 60.3°F
Dec 6 61.3°F 58.2°F 60.3°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

In Charleston, the months May through October offer comfortable swimming conditions, which amounts to 157 swimming days.
The warmest water in Charleston was recorded on July 19, 2024, reaching a 87.3°F. While the coldest temperature occurred on January 26, 2025, dipping to 44.2°F. The average readings by season are 57.0°F in Winter, 67.2°F in Spring, 82.8°F in Summer, and 73.5°F in Autumn.