Tides Today & Tomorrow in South Dewees Island, SC

TIDE TIMES for Friday, June 19, 2026
The tide is currently rising in South Dewees Island, SC.
Next low tide : 6:12 pm (0.0 ft)
Next high tide : in 5h 49m at 12:38 pm (4.8 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 - May 2037

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri9:565.110:296.03:44-0.63:46-0.46:308:00Waning Gibbous1Fri
2Sat10:454.911:175.84:32-0.44:31-0.26:298:01Waning Gibbous2Sat
3Sun11:344.75:21-0.15:170.26:298:02Waning Gibbous3Sun
4Mon12:055.512:244.46:100.26:050.56:288:03Waning Gibbous4Mon
5Tue12:555.11:174.37:020.46:590.86:278:03Third Quarter5Tue
6Wed1:474.92:114.27:550.67:571.06:268:04Third Quarter6Wed
7Thu2:394.73:054.38:470.78:561.06:258:05Third Quarter7Thu
8Fri3:324.63:594.49:370.79:531.06:248:06Third Quarter8Fri
9Sat4:244.64:524.610:250.610:480.96:238:06Waning Crescent9Sat
10Sun5:154.65:424.811:090.511:390.76:238:07Waning Crescent10Sun
11Mon6:034.66:275.011:520.36:228:08Waning Crescent11Mon
12Tue6:484.77:085.312:260.512:320.26:218:09Waning Crescent12Tue
13Wed7:294.77:475.41:100.41:110.16:208:09New Moon13Wed
14Thu8:094.78:245.61:530.21:500.06:208:10New Moon14Thu
15Fri8:484.69:005.62:350.12:30-0.16:198:11New Moon15Fri
16Sat9:274.59:385.73:170.13:12-0.16:188:11New Moon16Sat
17Sun10:084.510:195.74:000.13:55-0.16:188:12Waxing Crescent17Sun
18Mon10:544.411:065.64:440.14:42-0.16:178:13Waxing Crescent18Mon
19Tue11:454.411:585.55:320.15:330.06:168:14Waxing Crescent19Tue
20Wed12:444.46:250.26:310.16:168:14First Quarter20Wed
21Thu12:585.41:494.57:230.17:360.26:158:15First Quarter21Thu
22Fri2:015.32:544.78:230.18:430.26:158:16First Quarter22Fri
23Sat3:055.23:595.09:22-0.19:500.16:148:16First Quarter23Sat
24Sun4:095.25:015.310:20-0.210:54-0.16:148:17Waxing Gibbous24Sun
25Mon5:115.26:005.711:15-0.411:55-0.26:138:18Waxing Gibbous25Mon
26Tue6:095.16:545.912:08-0.56:138:18Waxing Gibbous26Tue
27Wed7:035.17:446.112:51-0.412:59-0.66:128:19Full Moon27Wed
28Thu7:535.08:326.11:45-0.51:47-0.66:128:19Full Moon28Thu
29Fri8:434.99:196.02:36-0.52:34-0.56:128:20Full Moon29Fri
30Sat9:314.810:055.83:24-0.43:20-0.36:118:21Full Moon30Sat
31Sun10:194.610:505.64:11-0.24:050.06:118:21Waning Gibbous31Sun
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 3:25 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