Tides Today & Tomorrow in South Dewees Island, SC

TIDE TIMES for Wednesday, July 15, 2026
The tide is currently falling in South Dewees Island, SC.
Next low tide : in 58m at 3:09 pm (-0.7 ft)
Next high tide : 9:52 pm (6.1 ft)
Sunset today : 8:28 pm
Sunrise tomorrow : 6:21 am
Moon phase : New Moon (2% illuminated)
Tide Station Location : Station #8665111
Common Questions About Tides

South Dewees Island, SC Tides - May 1979

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:334.46:110.46:080.56:318:00Waxing Crescent1Tue
2Wed12:445.01:254.37:000.66:590.86:308:00First Quarter2Wed
3Thu1:334.82:184.37:520.87:550.96:298:01First Quarter3Thu
4Fri2:254.73:114.38:420.88:521.06:288:02First Quarter4Fri
5Sat3:174.64:054.49:320.89:490.96:288:03First Quarter5Sat
6Sun4:114.64:584.610:190.710:430.86:278:03Waxing Gibbous6Sun
7Mon5:034.65:474.811:040.511:350.66:268:04Waxing Gibbous7Mon
8Tue5:534.76:335.111:480.46:258:05Waxing Gibbous8Tue
9Wed6:394.77:145.312:230.412:290.26:248:06Waxing Gibbous9Wed
10Thu7:214.87:545.51:100.21:100.06:238:06Full Moon10Thu
11Fri8:024.88:325.71:550.01:52-0.16:228:07Full Moon11Fri
12Sat8:434.89:125.82:39-0.12:34-0.26:228:08Full Moon12Sat
13Sun9:264.89:545.83:24-0.23:19-0.26:218:09Full Moon13Sun
14Mon10:124.810:405.84:10-0.24:05-0.26:208:09Waning Gibbous14Mon
15Tue11:024.711:315.74:58-0.24:54-0.16:198:10Waning Gibbous15Tue
16Wed11:584.75:49-0.15:490.06:198:11Waning Gibbous16Wed
17Thu12:285.51:004.76:44-0.16:510.16:188:11Third Quarter17Thu
18Fri1:315.42:064.87:43-0.17:580.26:178:12Third Quarter18Fri
19Sat2:345.33:105.08:43-0.29:060.26:178:13Third Quarter19Sat
20Sun3:375.24:145.29:41-0.310:120.16:168:13Third Quarter20Sun
21Mon4:395.25:155.510:38-0.411:140.06:168:14Waning Crescent21Mon
22Tue5:395.16:125.711:32-0.56:158:15Waning Crescent22Tue
23Wed6:335.17:035.912:13-0.212:23-0.66:158:16Waning Crescent23Wed
24Thu7:245.17:516.01:07-0.31:12-0.66:148:16New Moon24Thu
25Fri8:125.08:366.01:58-0.31:59-0.56:148:17New Moon25Fri
26Sat8:594.99:205.92:46-0.32:44-0.46:138:18New Moon26Sat
27Sun9:454.710:025.73:32-0.23:27-0.26:138:18New Moon27Sun
28Mon10:314.610:435.44:160.04:100.06:128:19Waxing Crescent28Mon
29Tue11:164.411:245.24:570.24:510.36:128:19Waxing Crescent29Tue
30Wed12:024.35:390.45:340.56:128:20Waxing Crescent30Wed
31Thu12:075.012:514.26:210.56:210.76:118:21Waxing Crescent31Thu
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 6:30 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 2% 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 New Moon (2% 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