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 1h 41m 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 - May 2048

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri11:004.911:376.04:48-0.54:47-0.46:308:01Waning Gibbous1Fri
2Sat12:004.85:42-0.35:44-0.26:298:01Waning Gibbous2Sat
3Sun12:385.81:044.76:40-0.16:460.16:288:02Third Quarter3Sun
4Mon1:395.52:074.87:400.07:530.36:278:03Third Quarter4Mon
5Tue2:395.33:094.88:380.19:000.46:268:04Third Quarter5Tue
6Wed3:375.14:085.09:340.110:030.46:268:04Third Quarter6Wed
7Thu4:334.95:055.110:260.011:020.46:258:05Waning Crescent7Thu
8Fri5:254.85:555.311:150.011:550.36:248:06Waning Crescent8Fri
9Sat6:134.76:415.512:010.06:238:07Waning Crescent9Sat
10Sun6:574.77:225.612:440.312:430.06:228:07Waning Crescent10Sun
11Mon7:394.68:005.61:300.21:230.06:228:08New Moon11Mon
12Tue8:194.68:375.62:120.22:020.06:218:09New Moon12Tue
13Wed8:594.59:145.52:520.22:390.16:208:10New Moon13Wed
14Thu9:394.49:495.43:300.33:160.26:198:10New Moon14Thu
15Fri10:184.310:245.34:060.43:520.36:198:11Waxing Crescent15Fri
16Sat10:574.210:595.14:410.54:300.56:188:12Waxing Crescent16Sat
17Sun11:354.111:375.05:170.65:100.66:178:12Waxing Crescent17Sun
18Mon12:174.15:550.75:550.76:178:13Waxing Crescent18Mon
19Tue12:184.91:044.26:380.76:480.76:168:14First Quarter19Tue
20Wed1:064.81:564.37:270.67:480.86:168:14First Quarter20Wed
21Thu1:594.72:524.68:180.58:510.76:158:15First Quarter21Thu
22Fri2:554.73:504.99:120.39:550.56:158:16First Quarter22Fri
23Sat3:554.74:505.210:070.010:580.36:148:17Waxing Gibbous23Sat
24Sun4:574.75:495.611:03-0.211:590.06:148:17Waxing Gibbous24Sun
25Mon5:584.86:456.011:59-0.46:138:18Waxing Gibbous25Mon
26Tue6:564.97:406.212:57-0.212:54-0.66:138:18Full Moon26Tue
27Wed7:534.98:356.41:52-0.51:49-0.76:128:19Full Moon27Wed
28Thu8:515.09:326.42:47-0.62:44-0.86:128:20Full Moon28Thu
29Fri9:505.010:296.23:40-0.63:39-0.76:128:20Waning Gibbous29Fri
30Sat10:504.911:256.04:33-0.64:34-0.56:118:21Waning Gibbous30Sat
31Sun11:504.95:26-0.55:31-0.26:118:22Waning Gibbous31Sun
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