Tides Today & Tomorrow in South Dewees Island, SC

TIDE TIMES for Saturday, June 20, 2026
The tide is currently falling in South Dewees Island, SC.
Next low tide : in 1h 28m at 7:13 pm (0.2 ft)
Next high tide (tomorrow) : 1:44 am (5.0 ft)
Sunset today : 8:30 pm
Sunrise tomorrow : 6:11 am
Moon phase : First Quarter (37% illuminated)
Tide Station Location : Station #8665111
Common Questions About Tides

South Dewees Island, SC Tides - Feb 2013

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri10:554.611:324.74:53-0.25:06-0.47:135:51Waning Gibbous1Fri
2Sat11:484.45:500.06:00-0.37:125:52Third Quarter2Sat
3Sun12:344.712:494.36:540.17:01-0.37:125:53Third Quarter3Sun
4Mon1:434.81:574.28:010.18:07-0.37:115:54Third Quarter4Mon
5Tue2:564.93:104.29:09-0.19:15-0.57:105:55Waning Crescent5Tue
6Wed4:095.14:224.410:13-0.310:21-0.67:095:56Waning Crescent6Wed
7Thu5:145.35:274.611:13-0.511:22-0.97:085:57Waning Crescent7Thu
8Fri6:115.66:254.912:07-0.87:085:58New Moon8Fri
9Sat7:035.77:175.112:19-1.012:58-0.97:075:59New Moon9Sat
10Sun7:525.78:085.21:13-1.11:46-1.07:065:59New Moon10Sun
11Mon8:395.58:565.22:03-1.12:32-1.07:056:00New Moon11Mon
12Tue9:235.39:415.22:51-0.93:15-0.97:046:01Waxing Crescent12Tue
13Wed10:065.010:265.03:38-0.63:56-0.67:036:02Waxing Crescent13Wed
14Thu10:494.711:104.84:24-0.34:37-0.47:026:03Waxing Crescent14Thu
15Fri11:334.411:564.65:110.15:20-0.17:016:04Waxing Crescent15Fri
16Sat12:194.16:010.46:060.27:006:05First Quarter16Sat
17Sun12:444.41:103.96:560.66:570.36:596:06First Quarter17Sun
18Mon1:374.32:043.87:520.77:510.46:586:07First Quarter18Mon
19Tue2:324.33:013.88:490.78:460.46:576:07First Quarter19Tue
20Wed3:304.33:593.99:430.79:420.36:566:08Waxing Gibbous20Wed
21Thu4:264.54:534.010:340.510:340.26:556:09Waxing Gibbous21Thu
22Fri5:174.65:424.311:190.311:23-0.16:546:10Waxing Gibbous22Fri
23Sat6:024.86:264.512:010.16:536:11Waxing Gibbous23Sat
24Sun6:435.07:064.712:09-0.312:40-0.16:516:12Full Moon24Sun
25Mon7:215.17:454.912:53-0.41:18-0.36:506:12Full Moon25Mon
26Tue7:575.18:225.01:36-0.51:56-0.46:496:13Full Moon26Tue
27Wed8:345.19:005.12:20-0.62:35-0.56:486:14Waning Gibbous27Wed
28Thu9:135.09:415.23:04-0.63:15-0.66:476:15Waning Gibbous28Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8665111)

Common Questions About South Dewees Island, SC Tides

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What time does the tide turn (slack tide) in South Dewees Island, SC today?

Slack tide in South Dewees Island, SC is approximately 10:28 pm — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

Is this week a spring tide or neap tide in South Dewees Island, SC?

South Dewees Island, SC is currently in a transitional phase. Tonight's moon is 37% illuminated. Spring tides (largest swings) occur near new and full moons; neap tides (smallest swings) occur near first and third quarter moons. Tidal ranges this week are shifting between spring and neap.

What datum are South Dewees Island, SC tide heights measured from?

Tide heights on this page are measured from Mean Lower Low Water (MLLW), the U.S. NOAA standard. A height of 0 ft represents the 19-year average of each day's lower low tide. Negative values indicate a "minus tide" — water levels below that long-term reference.

What factors can affect the tide predictions for South Dewees Island, SC?

Tide predictions for South Dewees Island, SC come from NOAA's harmonic analysis and are typically accurate within about ±10 minutes on timing and ±0.5 ft on height. Actual water levels can deviate further due to sustained winds, atmospheric pressure changes, river flow, and storm surge. During major weather events, be sure to check US Harbors weather pages for factors that could impact tidal predictions.

Which NOAA station provides tide data for South Dewees Island, SC?

Tide data for South Dewees Island, SC is sourced from NOAA Station #8665111. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8665111.

What is the moon phase in South Dewees Island, SC tonight?

Tonight the moon over South Dewees Island, SC is First Quarter (37% illuminated). This places South Dewees Island, SC in a transitional tide cycle, so tidal ranges are shifting between spring and neap this week.

US Harbors Tidal Data

The data in our tide charts, tide tables, and tide graphs is provided by NOAA and others. These predictions are derived mathematically from numerous inputs, including data from historical tide stations and nearby locations where sensors are actively recording. As shown in the tide graph at the top of this page, “Predicted” tides (blue) are what forecasting models expect to happen. “Observed” tides (red) are those recorded by local sensors in real time, overlaid on the predictions for direct comparison. We display Observed water levels for a select group of harbors including Portland, Maine, where a physical sensor monitors water levels in real time.

LEARN MORE ABOUT OUR TIDE DATA