Tides Today & Tomorrow in South Dewees Island, SC

TIDE TIMES for Monday, June 29, 2026
The tide is currently rising in South Dewees Island, SC.
Next low tide (tomorrow) : 2:48 am (0.3 ft)
Next high tide : in 4h 26m at 8:41 pm (5.3 ft)
Sunset today : 8:31 pm
Sunrise tomorrow : 6:13 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #8665111
Common Questions About Tides

South Dewees Island, SC Tides - Oct 2048

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu3:074.63:305.28:481.39:411.57:137:02Third Quarter1Thu
2Fri4:024.74:235.39:441.210:301.37:147:01Waning Crescent2Fri
3Sat4:564.95:145.410:401.011:161.17:157:00Waning Crescent3Sat
4Sun5:475.26:025.511:330.87:156:58Waning Crescent4Sun
5Mon6:335.56:465.712:010.812:240.67:166:57Waning Crescent5Mon
6Tue7:175.87:285.712:440.61:140.47:176:56New Moon6Tue
7Wed7:596.18:105.71:260.32:020.37:176:55New Moon7Wed
8Thu8:436.28:545.72:100.12:510.27:186:53New Moon8Thu
9Fri9:296.39:425.62:550.03:410.27:196:52Waxing Crescent9Fri
10Sat10:206.310:335.43:420.04:310.37:196:51Waxing Crescent10Sat
11Sun11:156.311:295.34:310.15:250.57:206:50Waxing Crescent11Sun
12Mon12:166.15:250.36:230.67:216:48Waxing Crescent12Mon
13Tue12:315.11:216.06:240.47:250.77:226:47First Quarter13Tue
14Wed1:395.12:275.97:310.68:290.87:226:46First Quarter14Wed
15Thu2:465.13:315.88:390.69:290.77:236:45First Quarter15Thu
16Fri3:515.34:315.89:460.610:260.57:246:44Waxing Gibbous16Fri
17Sat4:545.55:275.810:480.511:190.47:256:42Waxing Gibbous17Sat
18Sun5:515.76:185.811:460.57:256:41Waxing Gibbous18Sun
19Mon6:426.07:045.712:080.312:390.47:266:40Waxing Gibbous19Mon
20Tue7:276.17:475.612:540.21:290.47:276:39Full Moon20Tue
21Wed8:096.28:285.51:370.22:150.47:286:38Full Moon21Wed
22Thu8:506.19:095.32:180.22:580.57:296:37Full Moon22Thu
23Fri9:296.09:495.22:570.43:400.77:296:36Full Moon23Fri
24Sat10:075.810:295.03:350.54:190.87:306:35Waning Gibbous24Sat
25Sun10:465.711:104.84:120.74:581.07:316:34Waning Gibbous25Sun
26Mon11:255.511:534.64:500.95:371.27:326:33Waning Gibbous26Mon
27Tue12:085.35:301.06:191.47:336:32Waning Gibbous27Tue
28Wed12:404.512:555.26:151.27:061.57:346:31Third Quarter28Wed
29Thu1:314.51:455.17:081.27:571.47:346:30Third Quarter29Thu
30Fri2:244.52:375.18:051.28:471.37:356:29Third Quarter30Fri
31Sat3:184.73:305.19:051.29:381.17:366:28Third Quarter31Sat
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 11:44 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 100% 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 Full Moon (100% 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