Tides Today & Tomorrow in South Dewees Island, SC

TIDE TIMES for Sunday, July 12, 2026
The tide is currently rising in South Dewees Island, SC.
Next low tide (tomorrow) : 1:20 am (-0.1 ft)
Next high tide : in 6h 47m at 7:03 pm (6.1 ft)
Sunset today : 8:29 pm
Sunrise tomorrow : 6:20 am
Moon phase : Waning Crescent (5% illuminated)
Tide Station Location : Station #8665111
Common Questions About Tides

South Dewees Island, SC Tides - Nov 1981

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun10:255.410:374.63:420.94:341.16:365:28Waxing Crescent1Sun
2Mon11:045.211:204.54:201.05:181.26:375:27Waxing Crescent2Mon
3Tue11:505.25:051.16:071.26:385:26First Quarter3Tue
4Wed12:104.512:435.15:581.17:011.26:395:25First Quarter4Wed
5Thu1:064.61:405.26:591.17:561.06:405:24First Quarter5Thu
6Fri2:044.72:385.38:031.08:500.86:415:23First Quarter6Fri
7Sat3:055.03:385.49:070.89:440.56:425:23Waxing Gibbous7Sat
8Sun4:055.44:365.610:090.510:370.16:435:22Waxing Gibbous8Sun
9Mon5:025.85:305.711:080.211:29-0.26:435:21Waxing Gibbous9Mon
10Tue5:566.26:225.812:04-0.16:445:20Full Moon10Tue
11Wed6:486.57:135.812:19-0.512:59-0.36:455:20Full Moon11Wed
12Thu7:406.68:075.71:10-0.61:53-0.36:465:19Full Moon12Thu
13Fri8:346.79:025.62:01-0.72:47-0.36:475:18Waning Gibbous13Fri
14Sat9:306.610:005.42:52-0.63:41-0.26:485:18Waning Gibbous14Sat
15Sun10:286.311:005.23:45-0.44:360.06:495:17Waning Gibbous15Sun
16Mon11:276.14:40-0.15:340.36:505:17Waning Gibbous16Mon
17Tue12:025.012:285.85:400.26:350.46:515:16Third Quarter17Tue
18Wed1:054.91:285.56:440.47:350.56:525:16Third Quarter18Wed
19Thu2:064.92:255.37:480.58:320.56:525:15Third Quarter19Thu
20Fri3:045.03:205.28:490.69:250.56:535:15Waning Crescent20Fri
21Sat4:005.14:115.19:470.610:130.46:545:14Waning Crescent21Sat
22Sun4:515.34:585.010:400.510:580.36:555:14Waning Crescent22Sun
23Mon5:365.45:425.011:280.411:390.36:565:14Waning Crescent23Mon
24Tue6:185.56:225.012:130.36:575:13New Moon24Tue
25Wed6:575.67:024.912:180.312:560.36:585:13New Moon25Wed
26Thu7:355.67:404.812:540.31:360.36:595:13New Moon26Thu
27Fri8:125.68:184.71:300.32:150.47:005:13New Moon27Fri
28Sat8:485.48:554.62:040.32:520.47:015:12Waxing Crescent28Sat
29Sun9:225.39:314.52:390.43:290.57:015:12Waxing Crescent29Sun
30Mon9:565.210:074.43:150.54:060.67:025:12Waxing Crescent30Mon
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 10:11 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 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 Waning 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