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 9.41°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.

48.9

°F

February 14, 03:11

Trend:

decreasing

Yesterday:

49.0°F

Tomorrow:

48.7°F

Sunrise:

07:04

Sunset:

18:04

Day Length:

11 h. 0 min.

Charleston in February

Minimum:

51.0°F

Average:

57.0°F

Maximum:

67.5°F

Sea water temperature in Charleston today

As of now, in Charleston, the water temperature is 48.9°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 7.2°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 notably higher than the average recorded over the past two weeks, indicating a significant warming trend. It is also close to the historical minimum temperature for this date. The maximum temperature recorded for this date was 60.1°F on 2016, while the historical minimum was 52.2°F on 2022.

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. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 49.0°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
Jan 31	47.0°F	48.2°F	53.0°F
Feb 1	46.8°F	47.6°F	53.1°F
Feb 2	46.1°F	48.5°F	53.1°F
Feb 3	45.4°F	49.1°F	53.0°F
Feb 4	44.0°F	51.1°F	53.2°F
Feb 5	45.6°F	51.9°F	53.4°F
Feb 6	44.6°F	51.8°F	53.7°F
Feb 7	45.1°F	54.3°F	54.2°F
Feb 8	45.7°F	54.9°F	54.6°F
Feb 9	44.4°F	55.5°F	54.5°F
Feb 10	45.3°F	57.2°F	54.4°F
Feb 11	44.6°F	57.8°F	54.6°F
Feb 12	46.6°F	57.9°F	55.2°F
Feb 13	49.0°F	57.6°F	55.9°F
Feb 14	48.9°F	56.9°F	56.1°F
Feb 15	48.7°F	57.3°F	55.9°F
Feb 16	48.8°F	55.9°F	56.0°F
Feb 17	49.1°F	55.7°F	56.2°F
Feb 18	48.9°F	55.0°F	56.1°F
Feb 19	49.3°F	55.6°F	56.5°F
Feb 20	49.1°F	56.0°F	56.3°F
Feb 21	49.1°F	53.8°F	56.3°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 February 4, 2026, dipping to 44.0°F. The average readings by season are 56.1°F in Winter, 67.2°F in Spring, 82.8°F in Summer, and 73.4°F in Autumn.