Tides Today & Tomorrow in South Dewees Island, SC

TIDE TIMES for Friday, August 14, 2026
The tide is currently rising in South Dewees Island, SC.
Next low tide (tomorrow) : 4:16 am (-0.2 ft)
Next high tide : in 2h 51m at 10:15 pm (5.8 ft)
Sunset today : 8:05 pm
Sunrise tomorrow : 6:41 am
Moon phase : Waxing Crescent (5% illuminated)
Tide Station Location : Station #8665111
Common Questions About Tides

South Dewees Island, SC Tides - Feb 1938

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue8:194.98:264.51:41-0.42:14-0.37:145:51New Moon1Tue
2Wed8:524.99:004.62:20-0.42:49-0.47:135:51Waxing Crescent2Wed
3Thu9:244.89:354.73:00-0.43:25-0.47:125:52Waxing Crescent3Thu
4Fri9:584.710:154.73:42-0.34:04-0.47:125:53Waxing Crescent4Fri
5Sat10:384.511:024.84:28-0.14:47-0.47:115:54Waxing Crescent5Sat
6Sun11:274.411:584.85:210.05:38-0.47:105:55First Quarter6Sun
7Mon12:254.26:220.26:36-0.37:095:56First Quarter7Mon
8Tue1:024.81:334.17:300.27:40-0.37:085:57First Quarter8Tue
9Wed2:134.92:464.18:390.18:47-0.47:085:58First Quarter9Wed
10Thu3:285.04:004.39:460.09:54-0.67:075:59Waxing Gibbous10Thu
11Fri4:395.25:084.510:49-0.310:57-0.87:066:00Waxing Gibbous11Fri
12Sat5:415.56:074.811:45-0.611:56-1.07:056:01Waxing Gibbous12Sat
13Sun6:365.67:025.112:38-0.87:046:02Full Moon13Sun
14Mon7:265.77:535.312:51-1.21:27-0.97:036:03Full Moon14Mon
15Tue8:145.68:425.41:43-1.22:13-1.07:026:03Full Moon15Tue
16Wed8:595.49:305.32:32-1.12:57-0.97:016:04Waning Gibbous16Wed
17Thu9:435.110:155.23:20-0.93:39-0.77:006:05Waning Gibbous17Thu
18Fri10:254.811:015.04:07-0.54:20-0.46:596:06Waning Gibbous18Fri
19Sat11:084.511:474.74:54-0.25:02-0.16:586:07Waning Gibbous19Sat
20Sun11:544.25:440.25:470.26:576:08Third Quarter20Sun
21Mon12:374.512:434.06:380.46:370.46:566:09Third Quarter21Mon
22Tue1:294.41:363.87:340.67:310.56:556:09Third Quarter22Tue
23Wed2:244.32:323.88:300.78:270.66:546:10Third Quarter23Wed
24Thu3:214.33:313.89:250.69:240.56:526:11Waning Crescent24Thu
25Fri4:184.44:274.010:160.510:180.36:516:12Waning Crescent25Fri
26Sat5:104.65:194.211:040.311:080.26:506:13Waning Crescent26Sat
27Sun5:554.86:044.411:460.211:540.06:496:14Waning Crescent27Sun
28Mon6:364.96:464.712:260.06:486:14New Moon28Mon
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 1:15 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 5% 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 Crescent (5% 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