Tides Today & Tomorrow in South Dewees Island, SC

TIDE TIMES for Saturday, July 4, 2026
The tide is currently rising in South Dewees Island, SC.
Next low tide : 5:11 pm (0.5 ft)
Next high tide : in 5h 08m at 11:23 am (4.3 ft)
Sunset today : 8:30 pm
Sunrise tomorrow : 6:15 am
Moon phase : Waning Gibbous (81% illuminated)
Tide Station Location : Station #8665111
Common Questions About Tides

South Dewees Island, SC Tides - Sep 2055

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed4:524.95:415.810:470.411:370.66:537:44Waxing Gibbous1Wed
2Thu5:484.96:315.811:410.46:547:42Waxing Gibbous2Thu
3Fri6:385.07:155.812:260.512:310.46:557:41Waxing Gibbous3Fri
4Sat7:235.17:565.81:120.51:180.46:557:40Full Moon4Sat
5Sun8:065.28:355.71:540.52:010.46:567:38Full Moon5Sun
6Mon8:475.39:135.62:330.42:420.56:567:37Full Moon6Mon
7Tue9:265.39:495.53:090.53:210.66:577:36Full Moon7Tue
8Wed10:035.310:255.33:430.53:590.86:587:34Waning Gibbous8Wed
9Thu10:395.210:595.14:160.64:350.96:587:33Waning Gibbous9Thu
10Fri11:145.211:344.94:490.75:131.16:597:32Waning Gibbous10Fri
11Sat11:505.25:240.85:551.27:007:30Waning Gibbous11Sat
12Sun12:114.812:315.26:040.96:441.47:007:29Third Quarter12Sun
13Mon12:554.61:205.26:500.97:391.47:017:28Third Quarter13Mon
14Tue1:464.62:165.37:450.98:401.37:027:26Third Quarter14Tue
15Wed2:444.63:165.58:440.89:411.27:027:25Third Quarter15Wed
16Thu3:474.74:205.79:460.610:410.97:037:24Waning Crescent16Thu
17Fri4:535.05:236.010:490.411:380.67:037:22Waning Crescent17Fri
18Sat5:555.36:226.211:490.17:047:21Waning Crescent18Sat
19Sun6:525.77:166.412:320.312:47-0.17:057:19New Moon19Sun
20Mon7:476.08:086.51:240.01:43-0.37:057:18New Moon20Mon
21Tue8:416.39:006.52:14-0.32:38-0.47:067:17New Moon21Tue
22Wed9:356.49:526.33:03-0.43:32-0.47:077:15Waxing Crescent22Wed
23Thu10:316.510:466.13:52-0.44:26-0.27:077:14Waxing Crescent23Thu
24Fri11:276.411:405.84:42-0.25:210.07:087:13Waxing Crescent24Fri
25Sat12:256.35:330.06:190.37:097:11Waxing Crescent25Sat
26Sun12:375.51:246.16:270.37:200.67:097:10First Quarter26Sun
27Mon1:365.22:245.97:270.58:220.87:107:09First Quarter27Mon
28Tue2:355.13:235.88:280.79:210.97:117:07First Quarter28Tue
29Wed3:345.04:205.79:280.810:180.97:117:06First Quarter29Wed
30Thu4:315.05:145.710:260.911:100.97:127:05Waxing 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 2:17 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 spring phase. Tonight's moon is 81% 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 Waning Gibbous (81% 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