Water temperature in Charleston
71.7
°F
May 13, 07:17
Trend:
stableYesterday:
71.6°FTomorrow:
71.7°F
Sunrise:
Sunset:
Day Length:
13 h. 48 min.Charleston in May
Minimum:
49.2°FAverage:
56.9°FMaximum:
64.3°FSea water temperature in Charleston today
As of now, in Charleston, the water temperature is 71.7°F. Swimming in water of this temperature is seen as relatively warm and enjoyable for some individuals, although many might find it slightly too cool. Today's reading is 1.6°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
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 75.2°F on 2025, while the historical minimum was 70.0°F on 2020.
Daily water temperature in Charleston
| Date |
Current Year
actual* / forecast** |
last year | 10 years average |
|---|---|---|---|
| Apr 29 | 68.8°F | 72.2°F | 70.5°F |
| Apr 30 | 69.8°F | 72.5°F | 70.5°F |
| May 1 | 69.0°F | 71.7°F | 70.9°F |
| May 2 | 70.0°F | 73.1°F | 71.2°F |
| May 3 | 69.8°F | 73.0°F | 71.4°F |
| May 4 | 69.0°F | 73.5°F | 72.2°F |
| May 5 | 68.5°F | 74.0°F | 72.2°F |
| May 6 | 69.8°F | 74.8°F | 72.8°F |
| May 7 | 69.8°F | 74.4°F | 72.9°F |
| May 8 | 71.9°F | 74.3°F | 73.0°F |
| May 9 | 71.2°F | 74.4°F | 72.8°F |
| May 10 | 71.6°F | 74.3°F | 72.8°F |
| May 11 | 72.8°F | 74.1°F | 72.6°F |
| May 12 | 71.6°F | 74.5°F | 72.9°F |
| May 13 | 71.7°F | 75.2°F | 73.3°F |
| May 14 | 71.7°F | 74.7°F | 73.3°F |
| May 15 | 71.9°F | 75.5°F | 73.5°F |
| May 16 | 72.1°F | 75.4°F | 73.7°F |
| May 17 | 72.6°F | 75.9°F | 74.2°F |
| May 18 | 72.7°F | 74.9°F | 74.4°F |
| May 19 | 73.3°F | 77.3°F | 74.9°F |
| May 20 | 73.6°F | 76.6°F | 75.2°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.