Tides Today & Tomorrow in South Dewees Island, SC

TIDE TIMES for Sunday, July 5, 2026
The tide is currently falling in South Dewees Island, SC.
Next low tide : in 4h 59m at 6:00 pm (0.6 ft)
Next high tide (tomorrow) : 12:19 am (4.8 ft)
Sunset today : 8:30 pm
Sunrise tomorrow : 6:16 am
Moon phase : Waning Gibbous (72% illuminated)
Tide Station Location : Station #8665111
Common Questions About Tides

South Dewees Island, SC Tides - Apr 1993

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu2:015.02:464.58:280.48:470.16:066:39First Quarter1Thu
2Fri3:115.13:564.99:300.19:54-0.16:056:39Waxing Gibbous2Fri
3Sat4:195.35:005.310:29-0.210:57-0.46:036:40Waxing Gibbous3Sat
4Sun6:205.56:575.712:23-0.57:027:41Waxing Gibbous4Sun
5Mon7:155.67:516.112:56-0.71:15-0.87:017:41Full Moon5Mon
6Tue8:075.68:436.31:51-0.92:05-0.96:597:42Full Moon6Tue
7Wed8:595.59:356.32:45-0.92:54-0.96:587:43Full Moon7Wed
8Thu9:505.310:266.23:37-0.83:42-0.86:577:44Waning Gibbous8Thu
9Fri10:425.111:185.94:28-0.64:31-0.56:567:44Waning Gibbous9Fri
10Sat11:344.85:19-0.35:20-0.26:547:45Waning Gibbous10Sat
11Sun12:115.612:284.66:120.06:130.26:537:46Waning Gibbous11Sun
12Mon1:065.31:254.47:080.37:110.56:527:46Third Quarter12Mon
13Tue2:025.02:224.38:060.58:130.76:517:47Third Quarter13Tue
14Wed2:584.83:194.39:010.69:140.86:497:48Third Quarter14Wed
15Thu3:534.74:154.49:540.610:130.86:487:49Third Quarter15Thu
16Fri4:464.65:084.610:430.511:070.76:477:49Waning Crescent16Fri
17Sat5:354.65:574.911:280.411:570.66:467:50Waning Crescent17Sat
18Sun6:214.76:425.112:100.36:457:51Waning Crescent18Sun
19Mon7:044.77:225.312:420.412:490.26:447:51Waning Crescent19Mon
20Tue7:444.78:005.41:250.31:260.16:427:52New Moon20Tue
21Wed8:224.78:355.52:050.22:020.16:417:53New Moon21Wed
22Thu8:594.69:095.52:440.22:380.16:407:54New Moon22Thu
23Fri9:344.59:415.53:220.23:140.16:397:54New Moon23Fri
24Sat10:094.410:155.53:590.33:530.16:387:55Waxing Crescent24Sat
25Sun10:454.410:545.44:390.34:340.16:377:56Waxing Crescent25Sun
26Mon11:274.311:405.45:210.45:200.26:367:57Waxing Crescent26Mon
27Tue12:184.36:090.46:140.36:357:57Waxing Crescent27Tue
28Wed12:345.31:194.47:040.47:160.36:347:58First Quarter28Wed
29Thu1:355.22:264.68:030.38:230.36:337:59First Quarter29Thu
30Fri2:405.23:334.99:040.29:310.26:327:59First Quarter30Fri
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 9:09 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 72% 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 Waning Gibbous (72% 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