Tides Today & Tomorrow in South Dewees Island, SC

TIDE TIMES for Monday, August 10, 2026
The tide is currently rising in South Dewees Island, SC.
Next low tide : 12:04 pm (-0.3 ft)
Next high tide : in 2h 07m at 6:14 am (4.7 ft)
Sunset today : 8:09 pm
Sunrise tomorrow : 6:39 am
Moon phase : Waning Crescent (6% illuminated)
Tide Station Location : Station #8665111
Common Questions About Tides

South Dewees Island, SC Tides - Aug 1944

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue5:244.56:145.611:210.06:328:17Waxing Gibbous1Tue
2Wed6:224.77:075.912:240.312:18-0.26:338:16Waxing Gibbous2Wed
3Thu7:184.97:596.11:170.01:14-0.46:338:15Full Moon3Thu
4Fri8:135.18:526.22:08-0.22:09-0.56:348:15Full Moon4Fri
5Sat9:095.39:456.22:59-0.53:04-0.66:358:14Full Moon5Sat
6Sun10:065.410:386.13:48-0.63:59-0.56:368:13Waning Gibbous6Sun
7Mon11:035.511:315.94:38-0.64:54-0.46:368:12Waning Gibbous7Mon
8Tue12:015.65:28-0.65:51-0.16:378:11Waning Gibbous8Tue
9Wed12:265.71:005.66:20-0.46:520.16:388:10Third Quarter9Wed
10Thu1:225.41:595.67:14-0.37:560.36:388:09Third Quarter10Thu
11Fri2:185.12:585.68:10-0.19:000.56:398:08Third Quarter11Fri
12Sat3:154.93:565.69:060.010:010.66:408:07Third Quarter12Sat
13Sun4:134.74:535.610:020.110:590.66:408:06Waning Crescent13Sun
14Mon5:104.75:475.610:570.111:530.56:418:05Waning Crescent14Mon
15Tue6:044.76:365.611:490.26:428:04Waning Crescent15Tue
16Wed6:534.77:205.712:430.512:380.26:428:03Waning Crescent16Wed
17Thu7:394.88:015.61:280.51:240.26:438:02New Moon17Thu
18Fri8:234.98:405.62:100.42:080.26:448:01New Moon18Fri
19Sat9:054.99:175.52:490.42:490.36:447:59New Moon19Sat
20Sun9:454.99:545.43:250.53:290.46:457:58New Moon20Sun
21Mon10:244.910:295.33:580.54:070.66:467:57Waxing Crescent21Mon
22Tue11:014.911:035.14:290.64:450.76:467:56Waxing Crescent22Tue
23Wed11:374.811:384.95:010.75:250.96:477:55Waxing Crescent23Wed
24Thu12:144.95:350.76:101.06:487:54Waxing Crescent24Thu
25Fri12:164.812:554.96:140.77:001.16:487:52First Quarter25Fri
26Sat1:004.71:445.07:000.77:571.26:497:51First Quarter26Sat
27Sun1:514.62:395.27:540.78:581.16:507:50First Quarter27Sun
28Mon2:484.63:405.48:520.69:591.06:507:49First Quarter28Mon
29Tue3:504.74:445.69:540.510:590.76:517:47Waxing Gibbous29Tue
30Wed4:564.85:475.910:570.211:570.46:527:46Waxing Gibbous30Wed
31Thu6:005.16:456.211:590.06:527:45Waxing Gibbous31Thu
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 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 spring phase. Tonight's moon is 6% 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 Crescent (6% 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