Tides Today & Tomorrow in South Dewees Island, SC

TIDE TIMES for Thursday, July 9, 2026
The tide is currently rising in South Dewees Island, SC.
Next low tide (tomorrow) : 10:12 am (-0.3 ft)
Next high tide (tomorrow) : in 5h 21m at 4:06 am (4.3 ft)
Sunset today : 8:30 pm
Sunrise tomorrow : 6:18 am
Moon phase : Waning Crescent (30% illuminated)
Tide Station Location : Station #8665111
Common Questions About Tides

South Dewees Island, SC Tides - Nov 1985

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri9:375.510:034.53:070.83:551.16:365:28Waning Gibbous1Fri
2Sat10:145.410:414.43:440.94:351.36:375:27Waning Gibbous2Sat
3Sun10:565.311:274.34:261.05:201.46:385:26Waning Gibbous3Sun
4Mon11:475.35:151.06:131.46:395:25Third Quarter4Mon
5Tue12:224.312:455.36:141.07:111.36:405:24Third Quarter5Tue
6Wed1:234.51:465.37:181.08:081.06:415:23Third Quarter6Wed
7Thu2:274.72:475.48:230.89:040.76:425:23Waning Crescent7Thu
8Fri3:305.13:475.59:280.69:580.46:435:22Waning Crescent8Fri
9Sat4:305.54:455.610:300.310:500.06:435:21Waning Crescent9Sat
10Sun5:266.05:405.711:280.011:41-0.36:445:20Waning Crescent10Sun
11Mon6:196.46:325.712:25-0.26:455:20New Moon11Mon
12Tue7:116.67:245.612:32-0.51:19-0.36:465:19New Moon12Tue
13Wed8:046.78:185.51:22-0.52:14-0.36:475:18New Moon13Wed
14Thu8:596.69:135.32:13-0.53:07-0.26:485:18Waxing Crescent14Thu
15Fri9:566.410:105.03:05-0.34:010.06:495:17Waxing Crescent15Fri
16Sat10:546.111:104.83:580.04:560.36:505:17Waxing Crescent16Sat
17Sun11:545.84:540.35:540.56:515:16First Quarter17Sun
18Mon12:124.712:545.55:560.66:540.76:525:16First Quarter18Mon
19Tue1:144.61:515.37:020.87:510.76:525:15First Quarter19Tue
20Wed2:134.72:465.18:060.98:440.76:535:15First Quarter20Wed
21Thu3:104.83:375.09:060.99:330.66:545:14Waxing Gibbous21Thu
22Fri4:044.94:254.910:010.810:180.56:555:14Waxing Gibbous22Fri
23Sat4:525.15:104.910:520.711:000.46:565:14Waxing Gibbous23Sat
24Sun5:365.35:524.811:390.711:390.46:575:13Waxing Gibbous24Sun
25Mon6:155.46:324.812:220.66:585:13Full Moon25Mon
26Tue6:535.57:124.712:170.31:030.56:595:13Full Moon26Tue
27Wed7:305.57:504.612:530.31:420.57:005:13Full Moon27Wed
28Thu8:065.58:284.51:300.32:200.67:015:12Full Moon28Thu
29Fri8:405.49:044.32:060.32:560.67:015:12Waning Gibbous29Fri
30Sat9:155.39:394.22:430.43:330.77:025:12Waning Gibbous30Sat
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 7:09 am — 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 30% 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 Crescent (30% 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