Tides Today & Tomorrow in South Dewees Island, SC

TIDE TIMES for Sunday, August 2, 2026
The tide is currently falling in South Dewees Island, SC.
Next low tide : in 5h 05m at 4:55 pm (0.5 ft)
Next high tide : 11:12 pm (5.0 ft)
Sunset today : 8:16 pm
Sunrise tomorrow : 6:33 am
Moon phase : Waning Gibbous (84% illuminated)
Tide Station Location : Station #8665111
Common Questions About Tides

South Dewees Island, SC Tides - Jun 1958

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun8:005.18:416.31:53-0.61:55-0.76:118:21Full Moon1Sun
2Mon8:545.09:326.12:45-0.62:46-0.66:118:22Full Moon2Mon
3Tue9:484.910:235.93:36-0.63:36-0.46:108:22Waning Gibbous3Tue
4Wed10:404.811:115.74:24-0.44:25-0.26:108:23Waning Gibbous4Wed
5Thu11:314.711:595.45:12-0.25:140.16:108:23Waning Gibbous5Thu
6Fri12:224.65:590.06:040.46:108:24Waning Gibbous6Fri
7Sat12:465.11:144.56:470.26:580.76:108:24Third Quarter7Sat
8Sun1:344.82:054.57:350.37:540.86:108:25Third Quarter8Sun
9Mon2:214.62:554.68:230.48:500.96:108:25Third Quarter9Mon
10Tue3:094.43:454.79:090.49:450.96:108:26Third Quarter10Tue
11Wed3:594.34:344.89:540.310:380.86:098:26Waning Crescent11Wed
12Thu4:504.35:245.010:390.311:290.76:098:27Waning Crescent12Thu
13Fri5:404.36:105.111:240.26:098:27Waning Crescent13Fri
14Sat6:284.36:545.312:170.612:080.16:108:28Waning Crescent14Sat
15Sun7:144.47:355.41:020.412:520.06:108:28New Moon15Sun
16Mon7:574.48:145.51:450.31:36-0.16:108:28New Moon16Mon
17Tue8:394.48:535.62:270.12:19-0.26:108:29New Moon17Tue
18Wed9:214.49:335.63:090.03:04-0.26:108:29New Moon18Wed
19Thu10:054.510:155.63:51-0.13:50-0.26:108:29Waxing Crescent19Thu
20Fri10:524.611:005.54:34-0.14:38-0.26:108:29Waxing Crescent20Fri
21Sat11:424.611:495.45:19-0.25:30-0.16:108:30Waxing Crescent21Sat
22Sun12:384.86:07-0.26:270.06:118:30Waxing Crescent22Sun
23Mon12:435.31:384.97:00-0.37:300.16:118:30First Quarter23Mon
24Tue1:415.12:395.17:56-0.38:350.26:118:30First Quarter24Tue
25Wed2:415.03:415.38:54-0.49:400.16:118:30First Quarter25Wed
26Thu3:434.84:435.69:52-0.410:440.06:128:30Waxing Gibbous26Thu
27Fri4:474.85:445.810:51-0.511:45-0.16:128:31Waxing Gibbous27Fri
28Sat5:504.76:415.911:48-0.66:128:31Waxing Gibbous28Sat
29Sun6:484.87:346.012:42-0.312:43-0.66:138:31Full Moon29Sun
30Mon7:424.88:246.01:35-0.41:36-0.66:138:31Full Moon30Mon
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 8:03 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 84% 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 (84% 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