Tides Today & Tomorrow in South Dewees Island, SC

TIDE TIMES for Thursday, July 16, 2026
The tide is currently rising in South Dewees Island, SC.
Next low tide : 4:03 pm (-0.5 ft)
Next high tide : in 3h 16m at 10:23 am (5.0 ft)
Sunset today : 8:27 pm
Sunrise tomorrow : 6:22 am
Moon phase : Waxing Crescent (7% illuminated)
Tide Station Location : Station #8665111
Common Questions About Tides

South Dewees Island, SC Tides - Aug 2071

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat12:435.41:315.46:42-0.27:150.26:338:17First Quarter1Sat
2Sun1:355.12:255.37:350.08:150.56:338:16First Quarter2Sun
3Mon2:274.83:195.38:280.29:130.66:348:15First Quarter3Mon
4Tue3:184.64:115.39:200.310:080.76:358:15First Quarter4Tue
5Wed4:104.55:035.310:110.411:010.76:358:14Waxing Gibbous5Wed
6Thu5:034.55:525.311:010.411:510.66:368:13Waxing Gibbous6Thu
7Fri5:544.56:375.411:490.46:378:12Waxing Gibbous7Fri
8Sat6:424.67:205.512:370.512:340.46:378:11Waxing Gibbous8Sat
9Sun7:264.78:005.51:190.51:170.36:388:10Full Moon9Sun
10Mon8:094.88:395.52:000.41:580.36:398:09Full Moon10Mon
11Tue8:494.89:165.42:370.32:370.36:398:08Full Moon11Tue
12Wed9:274.89:505.33:130.33:160.46:408:07Full Moon12Wed
13Thu10:034.910:225.23:480.33:540.56:418:06Waning Gibbous13Thu
14Fri10:374.910:555.14:220.34:340.66:418:05Waning Gibbous14Fri
15Sat11:145.011:305.04:590.35:170.76:428:04Waning Gibbous15Sat
16Sun11:565.15:390.36:060.86:438:03Waning Gibbous16Sun
17Mon12:144.912:465.26:250.27:020.86:438:02Third Quarter17Mon
18Tue1:064.81:445.47:190.28:050.86:448:00Third Quarter18Tue
19Wed2:064.82:475.58:180.29:110.86:457:59Third Quarter19Wed
20Thu3:114.83:535.79:200.110:160.66:457:58Waning Crescent20Thu
21Fri4:214.95:025.910:24-0.111:190.36:467:57Waning Crescent21Fri
22Sat5:315.16:066.211:27-0.36:477:56Waning Crescent22Sat
23Sun6:355.47:046.312:180.112:27-0.56:477:55Waning Crescent23Sun
24Mon7:345.67:596.41:13-0.21:25-0.66:487:53New Moon24Mon
25Tue8:305.88:526.42:06-0.42:21-0.66:497:52New Moon25Tue
26Wed9:256.09:436.32:56-0.53:15-0.66:497:51New Moon26Wed
27Thu10:206.010:346.03:45-0.44:08-0.46:507:50Waxing Crescent27Thu
28Fri11:125.911:235.74:32-0.34:59-0.16:517:48Waxing Crescent28Fri
29Sat12:055.85:19-0.15:520.36:517:47Waxing Crescent29Sat
30Sun12:125.412:575.66:070.26:470.66:527:46First Quarter30Sun
31Mon1:025.11:505.56:570.57:430.96:537:45First Quarter31Mon
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 1:13 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 7% 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 (7% 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