Tides Today & Tomorrow in South Dewees Island, SC

TIDE TIMES for Wednesday, July 1, 2026
The tide is currently falling in South Dewees Island, SC.
Next low tide : in 19m at 3:08 pm (0.3 ft)
Next high tide : 9:56 pm (5.2 ft)
Sunset today : 8:31 pm
Sunrise tomorrow : 6:14 am
Moon phase : Full Moon (97% illuminated)
Tide Station Location : Station #8665111
Common Questions About Tides

South Dewees Island, SC Tides - Apr 2051

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat11:364.311:554.95:360.45:270.47:067:38Waning Gibbous1Sat
2Sun12:194.36:210.56:150.47:057:39Third Quarter2Sun
3Mon12:434.91:124.37:140.67:120.57:037:40Third Quarter3Mon
4Tue1:424.82:134.38:130.68:180.57:027:41Third Quarter4Tue
5Wed2:494.93:204.59:140.49:260.37:017:41Third Quarter5Wed
6Thu3:585.04:284.810:140.210:340.16:597:42Waning Crescent6Thu
7Fri5:065.25:345.211:13-0.111:39-0.26:587:43Waning Crescent7Fri
8Sat6:085.46:345.712:08-0.56:577:43Waning Crescent8Sat
9Sun7:055.67:296.012:39-0.51:01-0.86:567:44New Moon9Sun
10Mon7:585.68:216.31:35-0.81:52-1.06:547:45New Moon10Mon
11Tue8:515.69:146.42:30-0.92:42-1.06:537:46New Moon11Tue
12Wed9:445.510:076.33:23-0.93:32-1.06:527:46New Moon12Wed
13Thu10:385.311:006.14:16-0.74:22-0.86:517:47Waxing Crescent13Thu
14Fri11:325.111:555.85:08-0.55:13-0.56:507:48Waxing Crescent14Fri
15Sat12:294.86:02-0.26:07-0.16:487:48Waxing Crescent15Sat
16Sun12:515.51:274.77:000.17:060.26:477:49First Quarter16Sun
17Mon1:495.22:264.67:590.38:070.56:467:50First Quarter17Mon
18Tue2:455.03:244.68:570.59:090.66:457:51First Quarter18Tue
19Wed3:414.84:204.69:510.510:080.66:447:51First Quarter19Wed
20Thu4:354.75:144.810:420.511:030.56:427:52Waxing Gibbous20Thu
21Fri5:264.76:035.011:280.411:530.46:417:53Waxing Gibbous21Fri
22Sat6:124.86:475.212:110.36:407:54Waxing Gibbous22Sat
23Sun6:554.87:275.312:390.312:500.26:397:54Waxing Gibbous23Sun
24Mon7:354.88:065.41:230.21:270.26:387:55Full Moon24Mon
25Tue8:144.88:435.52:030.12:020.26:377:56Full Moon25Tue
26Wed8:514.79:175.42:430.12:360.26:367:57Full Moon26Wed
27Thu9:274.69:505.43:210.13:100.26:357:57Full Moon27Thu
28Fri10:014.510:215.33:580.23:460.26:347:58Waning Gibbous28Fri
29Sat10:364.410:545.34:360.34:240.36:337:59Waning Gibbous29Sat
30Sun11:144.411:335.25:160.35:060.36:327:59Waning Gibbous30Sun
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 6:32 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 97% 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 Full Moon (97% 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