Tides Today & Tomorrow in South Dewees Island, SC

TIDE TIMES for Saturday, July 25, 2026
The tide is currently falling in South Dewees Island, SC.
Next low tide (tomorrow) : in 49m at 12:11 am (0.8 ft)
Next high tide (tomorrow) : 6:08 am (4.1 ft)
Sunset today : 8:22 pm
Sunrise tomorrow : 6:28 am
Moon phase : Waxing Gibbous (86% illuminated)
Tide Station Location : Station #8665111
Common Questions About Tides

South Dewees Island, SC Tides - Nov 1968

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri4:545.45:185.510:480.611:080.46:375:28Waxing Gibbous1Fri
2Sat5:415.76:015.411:390.611:500.46:375:27Waxing Gibbous2Sat
3Sun6:235.86:405.312:250.66:385:26Full Moon3Sun
4Mon7:025.97:195.212:290.31:090.66:395:25Full Moon4Mon
5Tue7:395.97:575.01:060.41:500.66:405:24Full Moon5Tue
6Wed8:155.88:354.81:420.52:290.76:415:23Full Moon6Wed
7Thu8:515.79:144.72:180.63:060.96:425:23Waning Gibbous7Thu
8Fri9:275.59:524.52:530.73:431.06:435:22Waning Gibbous8Fri
9Sat10:045.410:314.33:290.84:201.26:445:21Waning Gibbous9Sat
10Sun10:445.211:144.24:080.95:011.36:445:20Waning Gibbous10Sun
11Mon11:295.14:521.05:471.46:455:20Third Quarter11Mon
12Tue12:034.212:205.15:441.16:391.36:465:19Third Quarter12Tue
13Wed12:584.31:155.06:441.17:321.26:475:18Third Quarter13Wed
14Thu1:554.52:105.17:461.08:240.96:485:18Third Quarter14Thu
15Fri2:524.83:065.18:490.89:160.66:495:17Waning Crescent15Fri
16Sat3:505.14:025.29:500.610:080.36:505:17Waning Crescent16Sat
17Sun4:465.64:575.310:490.310:590.06:515:16Waning Crescent17Sun
18Mon5:396.05:505.311:460.111:49-0.36:525:16Waning Crescent18Mon
19Tue6:306.36:425.312:41-0.16:535:15New Moon19Tue
20Wed7:226.57:345.312:40-0.41:35-0.26:545:15New Moon20Wed
21Thu8:166.58:295.11:32-0.52:28-0.26:545:14New Moon21Thu
22Fri9:136.49:275.02:24-0.53:22-0.16:555:14Waxing Crescent22Fri
23Sat10:126.210:274.93:18-0.34:160.06:565:14Waxing Crescent23Sat
24Sun11:125.911:304.74:14-0.15:130.26:575:13Waxing Crescent24Sun
25Mon12:145.75:150.26:120.46:585:13First Quarter25Mon
26Tue12:354.71:145.46:200.47:110.46:595:13First Quarter26Tue
27Wed1:384.72:105.27:270.68:070.47:005:13First Quarter27Wed
28Thu2:384.83:055.08:320.78:590.47:015:12First Quarter28Thu
29Fri3:355.03:564.89:320.69:480.37:025:12Waxing Gibbous29Fri
30Sat4:285.24:454.710:270.610:340.27:025:12Waxing 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 3:09 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 86% 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 Waxing Gibbous (86% 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