Tides Today & Tomorrow in South Dewees Island, SC

TIDE TIMES for Saturday, July 4, 2026
The tide is currently rising in South Dewees Island, SC.
Next low tide : 5:11 pm (0.5 ft)
Next high tide : in 3h 52m at 11:23 am (4.3 ft)
Sunset today : 8:30 pm
Sunrise tomorrow : 6:15 am
Moon phase : Waning Gibbous (81% illuminated)
Tide Station Location : Station #8665111
Common Questions About Tides

South Dewees Island, SC Tides - Oct 2055

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri5:265.16:025.711:200.811:570.87:137:03Waxing Gibbous1Fri
2Sat6:155.36:465.712:100.87:137:02Waxing Gibbous2Sat
3Sun6:595.47:265.712:410.712:550.77:147:01Waxing Gibbous3Sun
4Mon7:405.58:055.71:210.61:380.77:156:59Full Moon4Mon
5Tue8:195.68:425.61:580.62:180.77:156:58Full Moon5Tue
6Wed8:565.79:185.52:330.62:570.77:166:57Full Moon6Wed
7Thu9:315.69:535.33:070.63:340.87:176:56Full Moon7Thu
8Fri10:045.610:275.13:400.74:101.07:186:54Waning Gibbous8Fri
9Sat10:365.611:004.94:130.84:481.17:186:53Waning Gibbous9Sat
10Sun11:115.511:364.84:500.85:281.27:196:52Waning Gibbous10Sun
11Mon11:525.55:300.96:151.37:206:50Waning Gibbous11Mon
12Tue12:204.712:425.56:180.97:091.37:206:49Third Quarter12Tue
13Wed1:144.71:415.57:150.98:101.37:216:48Third Quarter13Wed
14Thu2:174.82:455.68:180.99:111.17:226:47Third Quarter14Thu
15Fri3:234.93:515.89:240.710:120.87:236:46Waning Crescent15Fri
16Sat4:315.24:566.010:290.511:100.57:236:44Waning Crescent16Sat
17Sun5:355.65:576.111:310.27:246:43Waning Crescent17Sun
18Mon6:346.06:536.312:050.112:31-0.17:256:42Waning Crescent18Mon
19Tue7:296.47:456.312:57-0.21:28-0.37:266:41New Moon19Tue
20Wed8:226.68:386.31:48-0.42:23-0.47:276:40New Moon20Wed
21Thu9:166.89:316.12:38-0.43:17-0.47:276:39New Moon21Thu
22Fri10:106.710:245.83:28-0.44:10-0.27:286:38Waxing Crescent22Fri
23Sat11:046.611:185.64:17-0.25:030.07:296:36Waxing Crescent23Sat
24Sun12:006.35:080.15:580.37:306:35Waxing Crescent24Sun
25Mon12:145.312:576.06:010.46:550.67:316:34First Quarter25Mon
26Tue1:125.11:555.86:590.77:540.87:316:33First Quarter26Tue
27Wed2:114.92:515.68:000.98:520.97:326:32First Quarter27Wed
28Thu3:084.93:455.49:011.09:460.97:336:31First Quarter28Thu
29Fri4:034.94:375.39:591.010:360.97:346:30Waxing Gibbous29Fri
30Sat4:565.05:265.310:531.011:220.87:356:29Waxing Gibbous30Sat
31Sun5:465.26:115.411:430.97:366:28Waxing Gibbous31Sun
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 2:17 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 spring phase. Tonight's moon is 81% 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 near their weekly maximum.

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 (81% illuminated). This places South Dewees Island, SC in a spring tide cycle, so tidal ranges are near their weekly maximum 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