Tides Today & Tomorrow in South Dewees Island, SC

TIDE TIMES for Friday, June 19, 2026
The tide is currently falling in South Dewees Island, SC.
Next low tide : in 23m at 6:12 pm (0.0 ft)
Next high tide (tomorrow) : 12:52 am (5.4 ft)
Sunset today : 8:29 pm
Sunrise tomorrow : 6:10 am
Moon phase : Waxing Crescent (27% illuminated)
Tide Station Location : Station #8665111
Common Questions About Tides

South Dewees Island, SC Tides - Sep 2014

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon12:214.91:035.36:280.57:241.06:537:44First Quarter1Mon
2Tue1:154.82:045.47:250.58:261.06:547:42First Quarter2Tue
3Wed2:174.93:105.68:270.49:290.86:547:41First Quarter3Wed
4Thu3:234.94:185.89:330.310:310.66:557:40Waxing Gibbous4Thu
5Fri4:335.15:246.010:390.111:310.36:567:38Waxing Gibbous5Fri
6Sat5:415.46:256.211:42-0.16:567:37Waxing Gibbous6Sat
7Sun6:435.77:216.412:280.012:43-0.36:577:36Full Moon7Sun
8Mon7:406.08:146.51:21-0.31:40-0.46:587:34Full Moon8Mon
9Tue8:356.29:066.42:12-0.52:35-0.46:587:33Full Moon9Tue
10Wed9:306.39:576.23:02-0.53:29-0.36:597:32Full Moon10Wed
11Thu10:236.310:496.03:50-0.54:22-0.17:007:30Waning Gibbous11Thu
12Fri11:166.211:405.64:38-0.35:140.27:007:29Waning Gibbous12Fri
13Sat12:096.05:270.06:090.57:017:28Waning Gibbous13Sat
14Sun12:325.31:035.86:170.37:060.87:017:26Third Quarter14Sun
15Mon1:265.11:585.67:110.68:041.17:027:25Third Quarter15Mon
16Tue2:204.92:515.48:060.89:011.27:037:24Third Quarter16Tue
17Wed3:144.83:445.49:020.99:551.27:037:22Third Quarter17Wed
18Thu4:084.84:365.49:570.910:461.27:047:21Waning Crescent18Thu
19Fri5:014.95:265.410:490.911:331.17:057:20Waning Crescent19Fri
20Sat5:525.16:125.511:380.87:057:18Waning Crescent20Sat
21Sun6:385.26:545.612:160.912:250.77:067:17Waning Crescent21Sun
22Mon7:215.47:345.612:550.81:080.67:077:15New Moon22Mon
23Tue8:015.58:115.61:320.71:500.67:077:14New Moon23Tue
24Wed8:395.68:475.62:070.62:310.67:087:13New Moon24Wed
25Thu9:155.69:215.52:420.63:110.67:097:11New Moon25Thu
26Fri9:495.69:545.33:170.63:510.77:097:10Waxing Crescent26Fri
27Sat10:225.610:315.23:530.54:320.87:107:09Waxing Crescent27Sat
28Sun11:005.711:125.14:320.65:170.97:117:07Waxing Crescent28Sun
29Mon11:465.75:160.66:071.07:117:06Waxing Crescent29Mon
30Tue12:015.112:415.76:070.67:051.07:127:05First Quarter30Tue
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 9:32 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 27% 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 Crescent (27% 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