Tides Today & Tomorrow in South Dewees Island, SC

TIDE TIMES for Friday, July 24, 2026
The tide is currently falling in South Dewees Island, SC.
Next low tide : in 33m at 11:23 pm (0.8 ft)
Next high tide (tomorrow) : 5:17 am (4.1 ft)
Sunset today : 8:23 pm
Sunrise tomorrow : 6:27 am
Moon phase : Waxing Gibbous (79% illuminated)
Tide Station Location : Station #8665111
Common Questions About Tides

South Dewees Island, SC Tides - Oct 2079

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun12:264.61:075.36:061.27:141.57:137:03First Quarter1Sun
2Mon1:154.51:595.26:541.48:081.67:147:02First Quarter2Mon
3Tue2:094.42:545.17:491.49:021.67:147:00First Quarter3Tue
4Wed3:044.43:495.28:481.49:551.57:156:59First Quarter4Wed
5Thu4:004.64:445.39:471.310:451.37:166:58Waxing Gibbous5Thu
6Fri4:564.85:345.510:441.111:311.17:166:57Waxing Gibbous6Fri
7Sat5:485.06:205.611:380.97:176:55Waxing Gibbous7Sat
8Sun6:345.47:025.712:150.812:280.77:186:54Waxing Gibbous8Sun
9Mon7:185.77:435.812:560.51:180.57:186:53Full Moon9Mon
10Tue8:006.08:235.81:380.32:060.47:196:51Full Moon10Tue
11Wed8:436.29:065.72:200.12:550.37:206:50Full Moon11Wed
12Thu9:286.49:525.53:040.03:450.37:216:49Waning Gibbous12Thu
13Fri10:176.410:435.33:490.04:360.57:216:48Waning Gibbous13Fri
14Sat11:116.311:395.14:370.15:300.77:226:47Waning Gibbous14Sat
15Sun12:116.15:300.36:300.97:236:45Waning Gibbous15Sun
16Mon12:424.91:186.06:290.57:351.07:246:44Third Quarter16Mon
17Tue1:524.82:275.87:360.68:411.07:246:43Third Quarter17Tue
18Wed3:014.93:345.88:450.79:440.97:256:42Third Quarter18Wed
19Thu4:085.04:375.89:510.610:420.87:266:41Waning Crescent19Thu
20Fri5:115.35:345.810:540.511:350.67:276:40Waning Crescent20Fri
21Sat6:075.66:245.811:520.47:276:38Waning Crescent21Sat
22Sun6:565.87:095.712:220.412:450.47:286:37Waning Crescent22Sun
23Mon7:416.07:505.61:060.31:340.37:296:36New Moon23Mon
24Tue8:236.18:295.41:470.32:200.47:306:35New Moon24Tue
25Wed9:036.19:085.32:250.43:040.57:316:34New Moon25Wed
26Thu9:426.09:475.13:020.53:450.67:316:33New Moon26Thu
27Fri10:195.810:264.93:370.64:250.87:326:32Waxing Crescent27Fri
28Sat10:585.611:064.74:120.85:051.07:336:31Waxing Crescent28Sat
29Sun11:385.411:484.54:471.05:461.27:346:30Waxing Crescent29Sun
30Mon12:225.25:261.16:321.47:356:29Waxing Crescent30Mon
31Tue12:354.41:125.16:111.37:221.57:366:28First Quarter31Tue
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 2:20 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 79% 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 Waxing Gibbous (79% 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