Water temperature in Sullivans Island
77.1
°F
September 13, 22:06
Trend:
stableYesterday:
77.9°FTomorrow:
77.2°F
Sunrise:
Sunset:
Day Length:
12 h. 27 min.Sullivans Island in September
Minimum:
48.2°FAverage:
56.4°FMaximum:
64.2°FSea water temperature in Sullivans Island today
As of now, in Sullivans Island, the water temperature is 77.1°F. It's safe to say that the water is comfortably warm for various water-related activities. Today's reading is 4.6°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 considerably lower than the average registered over the last two weeks, indicating a slight cooling trend. It is also close to the historical minimum temperature for this date. The maximum temperature recorded for this date was 84.9°F on 2018, while the historical minimum was 76.8°F on 2024.
Daily water temperature in Sullivans Island
| Date |
Current Year
actual* / forecast** |
last year | 10 years average |
|---|---|---|---|
| Aug 30 | 82.0°F | 83.2°F | 83.3°F |
| Aug 31 | 81.8°F | 83.2°F | 83.3°F |
| Sep 1 | 81.1°F | 84.1°F | 83.2°F |
| Sep 2 | 80.5°F | 84.2°F | 83.2°F |
| Sep 3 | 80.2°F | 84.6°F | 83.1°F |
| Sep 4 | 78.0°F | 83.4°F | 82.6°F |
| Sep 5 | 78.5°F | 81.1°F | 82.4°F |
| Sep 6 | 79.6°F | 79.9°F | 82.2°F |
| Sep 7 | 79.9°F | 79.3°F | 82.2°F |
| Sep 8 | 81.0°F | 79.4°F | 82.2°F |
| Sep 9 | 80.1°F | 79.0°F | 82.0°F |
| Sep 10 | 79.4°F | 77.8°F | 81.8°F |
| Sep 11 | 79.1°F | 77.5°F | 81.6°F |
| Sep 12 | 77.9°F | 77.1°F | 81.4°F |
| Sep 13 | 77.1°F | 76.8°F | 81.7°F |
| Sep 14 | 77.2°F | 77.3°F | 81.8°F |
| Sep 15 | 77.0°F | 76.7°F | 81.6°F |
| Sep 16 | 76.7°F | 76.9°F | 81.3°F |
| Sep 17 | 76.4°F | 76.4°F | 81.0°F |
| Sep 18 | 76.3°F | 76.2°F | 80.9°F |
| Sep 19 | 76.3°F | 76.2°F | 80.9°F |
| Sep 20 | 75.8°F | 77.3°F | 80.4°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.