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 1h 30m 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 - Mar 2051

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed9:564.510:214.63:440.03:460.16:466:15Waning Gibbous1Wed
2Thu10:304.310:544.64:210.24:190.26:456:16Waning Gibbous2Thu
3Fri11:074.211:334.55:020.44:580.36:436:17Waning Gibbous3Fri
4Sat11:514.05:500.55:450.46:426:18Third Quarter4Sat
5Sun12:224.512:434.06:450.66:420.46:416:19Third Quarter5Sun
6Mon1:204.51:424.07:450.67:450.36:406:19Third Quarter6Mon
7Tue2:274.62:484.18:470.58:510.26:386:20Waning Crescent7Tue
8Wed3:364.83:564.49:470.29:57-0.16:376:21Waning Crescent8Wed
9Thu4:415.04:594.810:44-0.110:59-0.46:366:22Waning Crescent9Thu
10Fri5:385.35:565.211:38-0.511:56-0.76:356:23Waning Crescent10Fri
11Sat6:305.66:495.612:28-0.86:336:23New Moon11Sat
12Sun8:215.78:415.812:52-1.02:18-1.17:327:24New Moon12Sun
13Mon9:125.79:336.02:45-1.13:06-1.27:317:25New Moon13Mon
14Tue10:035.610:256.03:38-1.13:55-1.27:307:26Waxing Crescent14Tue
15Wed10:555.411:195.94:30-0.94:44-1.07:287:26Waxing Crescent15Wed
16Thu11:495.15:24-0.75:35-0.77:277:27Waxing Crescent16Thu
17Fri12:155.612:464.86:21-0.36:30-0.47:267:28First Quarter17Fri
18Sat1:145.41:474.67:220.07:30-0.17:247:28First Quarter18Sat
19Sun2:165.12:484.48:250.28:330.17:237:29First Quarter19Sun
20Mon3:174.93:494.49:270.39:350.27:227:30First Quarter20Mon
21Tue4:184.84:494.510:250.410:350.27:207:31Waxing Gibbous21Tue
22Wed5:164.85:454.611:190.311:310.27:197:31Waxing Gibbous22Wed
23Thu6:064.86:344.812:060.27:187:32Waxing Gibbous23Thu
24Fri6:504.97:175.012:210.112:490.17:167:33Waxing Gibbous24Fri
25Sat7:315.07:575.11:070.01:280.07:157:34Full Moon25Sat
26Sun8:085.08:355.21:49-0.12:040.07:147:34Full Moon26Sun
27Mon8:454.99:115.22:29-0.12:380.07:127:35Full Moon27Mon
28Tue9:204.89:455.23:07-0.13:100.17:117:36Full Moon28Tue
29Wed9:544.710:175.13:440.03:410.17:107:36Waning Gibbous29Wed
30Thu10:274.610:465.04:200.14:130.27:097:37Waning Gibbous30Thu
31Fri11:004.411:175.04:560.34:480.37:077:38Waning Gibbous31Fri
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