Tides Today & Tomorrow in South Dewees Island, SC

TIDE TIMES for Monday, July 6, 2026
The tide is currently rising in South Dewees Island, SC.
Next low tide : 6:57 pm (0.7 ft)
Next high tide : in 3h 49m at 12:55 pm (4.6 ft)
Sunset today : 8:30 pm
Sunrise tomorrow : 6:16 am
Moon phase : Third Quarter (62% illuminated)
Tide Station Location : Station #8665111
Common Questions About Tides

South Dewees Island, SC Tides - Nov 1991

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri3:155.43:345.69:030.59:360.46:365:28Waning Crescent1Fri
2Sat4:155.74:305.610:040.410:280.36:375:27Waning Crescent2Sat
3Sun5:105.95:215.511:010.311:170.16:385:26Waning Crescent3Sun
4Mon5:596.16:075.411:540.26:395:25New Moon4Mon
5Tue6:456.26:515.312:020.112:430.26:395:25New Moon5Tue
6Wed7:286.27:335.212:460.11:290.36:405:24New Moon6Wed
7Thu8:096.18:145.11:270.22:130.46:415:23New Moon7Thu
8Fri8:505.98:564.92:070.32:550.56:425:22Waxing Crescent8Fri
9Sat9:305.79:374.82:460.53:360.76:435:21Waxing Crescent9Sat
10Sun10:115.510:204.63:240.74:160.96:445:21Waxing Crescent10Sun
11Mon10:535.311:044.54:020.94:571.16:455:20Waxing Crescent11Mon
12Tue11:385.111:534.44:441.05:411.26:465:19First Quarter12Tue
13Wed12:254.95:321.26:291.26:475:19First Quarter13Wed
14Thu12:454.41:154.86:271.37:171.26:485:18First Quarter14Thu
15Fri1:374.52:054.87:271.38:051.06:485:18First Quarter15Fri
16Sat2:304.72:564.88:261.28:530.86:495:17Waxing Gibbous16Sat
17Sun3:244.93:484.89:251.09:420.66:505:16Waxing Gibbous17Sun
18Mon4:165.34:404.810:220.810:310.36:515:16Waxing Gibbous18Mon
19Tue5:075.65:294.911:160.611:190.16:525:15Waxing Gibbous19Tue
20Wed5:555.96:175.012:080.36:535:15Full Moon20Wed
21Thu6:426.17:055.012:08-0.112:590.26:545:15Full Moon21Thu
22Fri7:316.37:565.012:58-0.31:500.06:555:14Full Moon22Fri
23Sat8:236.38:495.01:48-0.42:410.06:565:14Waning Gibbous23Sat
24Sun9:176.29:475.02:40-0.43:320.06:575:14Waning Gibbous24Sun
25Mon10:146.110:474.93:34-0.34:250.16:575:13Waning Gibbous25Mon
26Tue11:135.811:504.94:30-0.25:210.26:585:13Waning Gibbous26Tue
27Wed12:135.65:310.16:190.26:595:13Third Quarter27Wed
28Thu12:555.01:135.46:370.27:180.27:005:13Third Quarter28Thu
29Fri1:575.12:115.27:430.38:140.27:015:12Third Quarter29Fri
30Sat2:585.33:085.08:470.39:090.17:025:12Waning Crescent30Sat
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 3:56 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 62% 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 Third Quarter (62% 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