Sullivan's Island tides
A quiet, residential beach with no high-rises between Fort Moultrie and Breach Inlet. Swimming at Breach Inlet is banned because of its strong currents.
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Today's tide
Heights above mean lower low water (MLLW). Shaded band is daylight. Times from NOAA; curve drawn between them.
Tide times from NOAA's Sullivans Island (outer coast) station, right here. Full 7-day forecast
Sullivan's Island water temperature
78°F (26°C)
Comfortable for most swimmers. About the same as this time yesterday.
Best low tides for the beach this week
Low tide in daylight leaves the widest, firmest sand for walking, biking, shelling and tide pools. Plan to arrive an hour or two before the time shown.
- Mon Oct 198:19 AM 1.6 ft
- Tue Oct 209:19 AM 1.5 ft
- Wed Oct 2110:18 AM 1.4 ft
- Thu Oct 2211:14 AM 1.1 ft
Quick answers
When is high tide at Sullivan's Island today?
On Friday, October 16, high tide at Sullivan's Island is at 12:26 PM (5.6 ft), predicted by NOAA for Sullivans Island (outer coast).
When is low tide at Sullivan's Island today?
On Friday, October 16, low tide at Sullivan's Island is at 5:40 AM (1.3 ft) and 6:45 PM (1.7 ft), predicted by NOAA for Sullivans Island (outer coast).
What is the water temperature at Sullivan's Island?
The water is about 78°F, from NOAA's live sensor at Charleston.
Charleston tide tables by month
Charleston king tides: the year's highest and lowest tides →
Tide predictions from NOAA. Not for navigation; wind and weather move real water levels. Check posted signs for swimming conditions and flags.