Water temperature in Charleston
76.7
°F
May 22, 12:15
Trend:
increasingYesterday:
75.7°FTomorrow:
77.0°F
Sunrise:
Sunset:
Day Length:
13 h. 59 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 76.7°F. It's safe to say that the water is comfortably warm for various water-related activities. Today's reading is 0.8°F higher than the average recorded on this particular day in recent years. Since yesterday, there was a noticeable increase in temperature. This indicates a warming trend over the past day. 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 78.6°F on 2025, while the historical minimum was 74.2°F on 2021.
Daily water temperature in Charleston
| Date |
Current Year
actual* / forecast** |
last year | 10 years average |
|---|---|---|---|
| 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 | 73.2°F |
| May 14 | 71.6°F | 74.7°F | 73.1°F |
| May 15 | 71.3°F | 75.5°F | 73.3°F |
| May 16 | 70.9°F | 75.4°F | 73.5°F |
| May 17 | 71.6°F | 75.9°F | 73.9°F |
| May 18 | 72.9°F | 74.9°F | 74.2°F |
| May 19 | 74.1°F | 77.3°F | 74.8°F |
| May 20 | 74.1°F | 76.6°F | 75.1°F |
| May 21 | 75.7°F | 76.8°F | 75.5°F |
| May 22 | 76.7°F | 78.6°F | 76.0°F |
| May 23 | 77.0°F | 78.0°F | 76.2°F |
| May 24 | 77.1°F | 77.4°F | 76.3°F |
| May 25 | 77.4°F | 76.6°F | 76.6°F |
| May 26 | 77.6°F | 76.6°F | 76.8°F |
| May 27 | 77.8°F | 76.4°F | 77.1°F |
| May 28 | 78.4°F | 76.5°F | 77.6°F |
| May 29 | 78.4°F | 77.0°F | 77.6°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.