Tides Today & Tomorrow in South Dewees Island, SC

TIDE TIMES for Monday, June 29, 2026
The tide is currently rising in South Dewees Island, SC.
Next low tide : 1:49 pm (0.3 ft)
Next high tide : in 2h 56m at 8:06 am (4.1 ft)
Sunset today : 8:31 pm
Sunrise tomorrow : 6:13 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #8665111
Common Questions About Tides

South Dewees Island, SC Tides - Mar 2000

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed4:264.54:364.010:260.510:240.46:456:16Waning Crescent1Wed
2Thu5:174.75:274.211:130.311:140.26:446:17Waning Crescent2Thu
3Fri6:034.96:124.411:560.211:590.06:436:17Waning Crescent3Fri
4Sat6:445.06:534.612:360.06:426:18New Moon4Sat
5Sun7:235.17:314.812:43-0.21:15-0.26:416:19New Moon5Sun
6Mon8:005.18:085.01:25-0.41:53-0.36:396:20New Moon6Mon
7Tue8:365.18:455.12:08-0.42:31-0.46:386:21New Moon7Tue
8Wed9:125.09:245.22:51-0.43:10-0.56:376:21Waxing Crescent8Wed
9Thu9:524.910:085.23:36-0.43:52-0.46:366:22Waxing Crescent9Thu
10Fri10:374.710:575.24:24-0.24:38-0.46:346:23Waxing Crescent10Fri
11Sat11:294.511:555.25:190.05:30-0.26:336:24First Quarter11Sat
12Sun12:314.46:210.26:31-0.16:326:24First Quarter12Sun
13Mon1:025.11:404.37:280.37:37-0.16:306:25First Quarter13Mon
14Tue2:145.12:534.38:370.28:45-0.16:296:26First Quarter14Tue
15Wed3:275.24:044.59:420.19:51-0.36:286:27Waxing Gibbous15Wed
16Thu4:365.35:084.810:43-0.110:54-0.56:276:27Waxing Gibbous16Thu
17Fri5:365.56:045.111:37-0.311:51-0.66:256:28Waxing Gibbous17Fri
18Sat6:285.66:555.312:27-0.56:246:29Full Moon18Sat
19Sun7:165.67:425.512:44-0.81:14-0.66:236:29Full Moon19Sun
20Mon8:005.58:285.51:34-0.81:57-0.66:216:30Full Moon20Mon
21Tue8:425.39:115.52:21-0.72:38-0.46:206:31Full Moon21Tue
22Wed9:235.19:525.43:05-0.53:16-0.26:196:32Waning Gibbous22Wed
23Thu10:034.810:325.23:49-0.23:530.06:176:32Waning Gibbous23Thu
24Fri10:434.511:145.04:320.14:300.36:166:33Waning Gibbous24Fri
25Sat11:264.311:594.75:170.45:100.56:156:34Waning Gibbous25Sat
26Sun12:144.16:060.65:550.76:136:35Third Quarter26Sun
27Mon12:484.61:064.06:590.86:480.96:126:35Third Quarter27Mon
28Tue1:424.52:024.07:540.97:470.96:116:36Third Quarter28Tue
29Wed2:404.53:004.08:480.98:460.96:096:37Third Quarter29Wed
30Thu3:394.53:574.29:410.79:450.76:086:37Waning Crescent30Thu
31Fri4:344.74:504.410:300.510:390.56:076:38Waning Crescent31Fri
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 10:57 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 100% 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 (100% 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