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 3h 00m 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 - Apr 2015

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed6:454.97:145.012:190.312:450.37:067:38Waxing Gibbous1Wed
2Thu7:264.97:545.11:040.11:220.27:057:39Full Moon2Thu
3Fri8:055.08:325.21:450.01:570.17:047:40Full Moon3Fri
4Sat8:414.99:075.32:250.02:310.17:027:40Full Moon4Sat
5Sun9:164.89:395.33:030.03:040.17:017:41Full Moon5Sun
6Mon9:494.710:095.23:410.03:370.17:007:42Waning Gibbous6Mon
7Tue10:224.610:405.24:190.14:130.16:597:43Waning Gibbous7Tue
8Wed10:574.511:165.24:580.24:520.26:577:43Waning Gibbous8Wed
9Thu11:394.55:420.35:370.26:567:44Waning Gibbous9Thu
10Fri12:025.112:304.46:330.46:310.36:557:45Third Quarter10Fri
11Sat12:585.11:304.57:310.47:340.46:547:45Third Quarter11Sat
12Sun2:045.12:374.68:320.38:430.36:527:46Third Quarter12Sun
13Mon3:145.13:474.89:340.19:520.16:517:47Third Quarter13Mon
14Tue4:255.24:565.110:35-0.111:00-0.16:507:48Waning Crescent14Tue
15Wed5:325.46:005.511:33-0.46:497:48Waning Crescent15Wed
16Thu6:325.56:575.912:03-0.412:28-0.76:477:49Waning Crescent16Thu
17Fri7:265.67:516.21:01-0.61:20-0.96:467:50New Moon17Fri
18Sat8:195.68:426.31:56-0.82:10-0.96:457:50New Moon18Sat
19Sun9:105.59:336.32:50-0.82:59-0.96:447:51New Moon19Sun
20Mon10:025.410:236.13:41-0.73:47-0.76:437:52Waxing Crescent20Mon
21Tue10:535.111:135.94:31-0.54:35-0.46:427:53Waxing Crescent21Tue
22Wed11:444.95:21-0.25:23-0.16:417:53Waxing Crescent22Wed
23Thu12:025.612:374.76:120.16:140.26:397:54Waxing Crescent23Thu
24Fri12:545.21:314.57:060.47:090.56:387:55First Quarter24Fri
25Sat1:465.02:264.48:010.68:080.76:377:56First Quarter25Sat
26Sun2:394.83:214.48:550.79:060.86:367:56First Quarter26Sun
27Mon3:324.64:154.59:460.710:030.86:357:57First Quarter27Mon
28Tue4:254.65:074.710:340.610:560.76:347:58Waxing Gibbous28Tue
29Wed5:164.65:564.911:190.511:460.56:337:58Waxing Gibbous29Wed
30Thu6:044.76:415.112:010.46:327:59Waxing Gibbous30Thu
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