Water temperature in Sullivans Island
54.6
°F
March 6, 02:30
Trend:
stableYesterday:
54.6°FTomorrow:
54.9°F
Sunrise:
Sunset:
Day Length:
11 h. 39 min.Sullivans Island in March
Minimum:
50.5°FAverage:
56.7°FMaximum:
66.7°FSea water temperature in Sullivans Island today
As of now, in Sullivans Island, the water temperature is 54.6°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 4.5°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 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 is also close to the historical minimum temperature for this date. The maximum temperature recorded for this date was 65.1°F on 2023, while the historical minimum was 54.8°F on 2025.
Daily water temperature in Sullivans Island
| Date |
Current Year
actual* / forecast** |
last year | 10 years average |
|---|---|---|---|
| Feb 20 | 52.7°F | 55.5°F | 55.7°F |
| Feb 21 | 52.0°F | 52.4°F | 55.6°F |
| Feb 22 | 52.9°F | 50.9°F | 55.8°F |
| Feb 23 | 54.1°F | 51.3°F | 56.1°F |
| Feb 24 | 53.9°F | 50.1°F | 56.6°F |
| Feb 25 | 52.1°F | 51.4°F | 56.9°F |
| Feb 26 | 51.5°F | 51.7°F | 56.8°F |
| Feb 27 | 52.2°F | 52.0°F | 57.3°F |
| Feb 28 | 53.2°F | 54.3°F | 57.8°F |
| Mar 1 | 53.2°F | 55.0°F | 58.3°F |
| Mar 2 | 53.9°F | 55.6°F | 58.7°F |
| Mar 3 | 55.7°F | 55.5°F | 59.1°F |
| Mar 4 | 55.6°F | 54.8°F | 58.9°F |
| Mar 5 | 54.6°F | 54.2°F | 59.2°F |
| Mar 6 | 54.6°F | 54.8°F | 59.1°F |
| Mar 7 | 54.9°F | 56.0°F | 59.4°F |
| Mar 8 | 54.9°F | 55.9°F | 59.4°F |
| Mar 9 | 54.8°F | 56.4°F | 59.4°F |
| Mar 10 | 55.0°F | 56.5°F | 59.5°F |
| Mar 11 | 55.6°F | 56.8°F | 60.2°F |
| Mar 12 | 55.5°F | 56.9°F | 60.0°F |
| Mar 13 | 55.7°F | 57.1°F | 60.2°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.