Tides Today & Tomorrow in South Dewees Island, SC

TIDE TIMES for Sunday, July 26, 2026
The tide is currently falling in South Dewees Island, SC.
Next low tide (tomorrow) : in 3h 26m at 12:56 am (0.7 ft)
Next high tide (tomorrow) : 6:56 am (4.2 ft)
Sunset today : 8:22 pm
Sunrise tomorrow : 6:28 am
Moon phase : Waxing Gibbous (92% illuminated)
Tide Station Location : Station #8665111
Common Questions About Tides

South Dewees Island, SC Tides - Apr 1967

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat12:575.21:144.27:030.47:030.56:076:38Third Quarter1Sat
2Sun2:015.02:184.18:060.68:090.66:056:39Third Quarter2Sun
3Mon3:044.83:204.29:060.69:140.66:046:39Third Quarter3Mon
4Tue4:044.84:194.310:000.510:130.66:036:40Waning Crescent4Tue
5Wed4:564.85:114.610:490.411:050.46:026:41Waning Crescent5Wed
6Thu5:414.95:554.811:320.311:520.36:006:42Waning Crescent6Thu
7Fri6:214.96:355.012:110.25:596:42Waning Crescent7Fri
8Sat6:594.97:135.212:340.212:470.15:586:43New Moon8Sat
9Sun7:354.97:485.31:140.21:210.15:576:44New Moon9Sun
10Mon8:104.78:215.31:520.21:530.15:556:44New Moon10Mon
11Tue8:454.68:525.32:290.22:240.25:546:45New Moon11Tue
12Wed9:174.49:215.23:040.32:560.35:536:46Waxing Crescent12Wed
13Thu9:494.29:535.23:400.53:300.45:526:47Waxing Crescent13Thu
14Fri10:234.110:315.14:180.64:090.45:506:47Waxing Crescent14Fri
15Sat11:044.011:195.05:010.74:550.55:496:48Waxing Crescent15Sat
16Sun11:564.05:530.85:510.65:486:49First Quarter16Sun
17Mon12:175.012:594.06:530.86:560.65:476:49First Quarter17Mon
18Tue1:235.02:084.27:550.78:050.55:466:50First Quarter18Tue
19Wed2:325.13:184.58:570.59:140.25:446:51Waxing Gibbous19Wed
20Thu3:405.24:245.09:550.210:190.05:436:52Waxing Gibbous20Thu
21Fri4:435.35:235.410:50-0.211:20-0.35:426:52Waxing Gibbous21Fri
22Sat5:405.56:175.911:42-0.55:416:53Waxing Gibbous22Sat
23Sun6:325.57:086.212:17-0.612:31-0.75:406:54Full Moon23Sun
24Mon7:235.47:596.41:12-0.71:20-0.85:396:55Full Moon24Mon
25Tue8:155.38:516.42:06-0.72:08-0.75:386:55Full Moon25Tue
26Wed9:075.19:446.22:58-0.62:57-0.55:376:56Waning Gibbous26Wed
27Thu10:014.810:385.93:50-0.43:46-0.25:356:57Waning Gibbous27Thu
28Fri10:564.511:345.54:43-0.14:380.15:346:57Waning Gibbous28Fri
29Sat11:544.35:400.25:350.55:336:58Third Quarter29Sat
30Sun12:335.21:544.27:380.57:380.76:327:59Third Quarter30Sun
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 3:56 am — 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 92% 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 Gibbous (92% 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