Water temperature in Sullivans Island
83.4
°F
August 31, 02:27
Trend:
stableYesterday:
83.4°FTomorrow:
83.4°F
Sunrise:
Sunset:
Day Length:
12 h. 53 min.Sullivans Island in September
Minimum:
48.2°FAverage:
55.6°FMaximum:
63.1°FSea water temperature in Sullivans Island today
As of now, in Sullivans Island, the water temperature is 83.4°F. Swimming in water of this temperature is considered highly warm and would be enjoyable for everyone. At this temperature, you can comfortably engage in water-based activities for extended periods without experiencing discomfort. Today's reading is about the same as 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 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 85.2°F on 2023, while the historical minimum was 81.4°F on 2017.
Daily water temperature in Sullivans Island
| Date |
Current Year
actual* / forecast** |
last year | 10 years average |
|---|---|---|---|
| Aug 17 | 85.2°F | 83.8°F | 84.5°F |
| Aug 18 | 85.9°F | 84.0°F | 84.3°F |
| Aug 19 | 86.8°F | 84.2°F | 84.4°F |
| Aug 20 | 87.4°F | 85.1°F | 84.5°F |
| Aug 21 | 87.1°F | 85.0°F | 84.7°F |
| Aug 22 | 87.5°F | 85.9°F | 84.9°F |
| Aug 23 | 85.7°F | 84.6°F | 84.6°F |
| Aug 24 | 85.6°F | 83.1°F | 84.1°F |
| Aug 25 | 85.3°F | 82.9°F | 83.5°F |
| Aug 26 | 85.0°F | 83.1°F | 83.5°F |
| Aug 27 | 84.7°F | 83.1°F | 83.3°F |
| Aug 28 | 84.2°F | 82.2°F | 83.3°F |
| Aug 29 | 83.6°F | 82.1°F | 83.3°F |
| Aug 30 | 83.4°F | 82.0°F | 83.3°F |
| Aug 31 | 83.4°F | 81.8°F | 83.3°F |
| Sep 1 | 83.4°F | 81.1°F | 83.2°F |
| Sep 2 | 83.4°F | 80.5°F | 83.2°F |
| Sep 3 | 83.2°F | 80.2°F | 83.1°F |
| Sep 4 | 82.7°F | 78.0°F | 82.6°F |
| Sep 5 | 82.4°F | 78.5°F | 82.3°F |
| Sep 6 | 82.3°F | 79.6°F | 82.1°F |
| Sep 7 | 82.2°F | 79.9°F | 82.1°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.