Water temperature in Sullivans Island
76.9
°F
May 20, 23:50
Trend:
stableYesterday:
77.5°FTomorrow:
77.2°F
Sunrise:
Sunset:
Day Length:
13 h. 58 min.Sullivans Island in May
Minimum:
48.3°FAverage:
57.6°FMaximum:
66.0°FSea water temperature in Sullivans Island today
As of now, in Sullivans Island, the water temperature is 76.9°F. It's safe to say that the water is comfortably warm for various water-related activities. Today's reading is 2.0°F higher 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 maximum temperature for this date. The maximum temperature recorded for this date was 76.3°F on 2017, while the historical minimum was 73.4°F on 2021.
Daily water temperature in Sullivans Island
| Date |
Current Year
actual* / forecast** |
last year | 10 years average |
|---|---|---|---|
| May 6 | 75.2°F | 75.4°F | 72.8°F |
| May 7 | 74.5°F | 74.6°F | 72.8°F |
| May 8 | 74.5°F | 75.1°F | 72.6°F |
| May 9 | 74.4°F | 75.7°F | 72.5°F |
| May 10 | 74.3°F | 75.8°F | 72.4°F |
| May 11 | 74.2°F | 75.7°F | 72.3°F |
| May 12 | 74.7°F | 76.2°F | 72.8°F |
| May 13 | 74.7°F | 76.6°F | 73.1°F |
| May 14 | 74.2°F | 76.6°F | 73.2°F |
| May 15 | 75.0°F | 73.8°F | 73.3°F |
| May 16 | 75.2°F | 75.1°F | 73.5°F |
| May 17 | 76.0°F | 75.2°F | 74.0°F |
| May 18 | 74.9°F | 76.0°F | 74.3°F |
| May 19 | 77.5°F | 75.7°F | 74.9°F |
| May 20 | 76.9°F | 75.2°F | 74.9°F |
| May 21 | 77.2°F | 75.9°F | 75.2°F |
| May 22 | 77.8°F | 74.9°F | 75.8°F |
| May 23 | 77.9°F | 75.8°F | 75.9°F |
| May 24 | 78.1°F | 76.5°F | 76.1°F |
| May 25 | 78.5°F | 76.4°F | 76.6°F |
| May 26 | 78.7°F | 76.9°F | 76.7°F |
| May 27 | 78.9°F | 77.1°F | 76.9°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.