Tides Today & Tomorrow in South Dewees Island, SC

TIDE TIMES for Tuesday, June 23, 2026
The tide is currently rising in South Dewees Island, SC.
Next low tide : 10:11 pm (0.6 ft)
Next high tide : in 1h 08m at 4:16 pm (5.1 ft)
Sunset today : 8:30 pm
Sunrise tomorrow : 6:11 am
Moon phase : First Quarter (67% illuminated)
Tide Station Location : Station #8665111
Common Questions About Tides

South Dewees Island, SC Tides - May 2008

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu4:404.85:125.110:450.211:190.36:308:00Waning Crescent1Thu
2Fri5:384.96:085.511:37-0.16:298:01Waning Crescent2Fri
3Sat6:325.07:005.912:180.112:27-0.46:288:02Waning Crescent3Sat
4Sun7:255.07:516.21:14-0.21:18-0.66:288:03New Moon4Sun
5Mon8:175.08:436.42:09-0.42:09-0.76:278:03New Moon5Mon
6Tue9:124.99:386.43:03-0.43:00-0.76:268:04New Moon6Tue
7Wed10:094.810:346.23:56-0.43:53-0.66:258:05Waxing Crescent7Wed
8Thu11:084.711:336.04:50-0.34:47-0.46:248:06Waxing Crescent8Thu
9Fri12:094.65:45-0.15:44-0.16:238:06Waxing Crescent9Fri
10Sat12:335.71:134.66:430.16:470.26:228:07First Quarter10Sat
11Sun1:345.42:164.67:430.27:530.46:228:08First Quarter11Sun
12Mon2:335.13:164.78:410.38:580.56:218:09First Quarter12Mon
13Tue3:294.94:134.99:360.39:590.56:208:09First Quarter13Tue
14Wed4:234.85:085.110:260.210:560.56:198:10Waxing Gibbous14Wed
15Thu5:134.65:575.311:120.211:490.46:198:11Waxing Gibbous15Thu
16Fri6:004.66:415.411:550.26:188:11Waxing Gibbous16Fri
17Sat6:434.57:215.512:380.312:360.16:178:12Waxing Gibbous17Sat
18Sun7:244.57:595.61:220.31:140.26:178:13Full Moon18Sun
19Mon8:044.48:375.52:050.21:510.26:168:14Full Moon19Mon
20Tue8:444.49:135.42:450.22:270.36:168:14Full Moon20Tue
21Wed9:234.39:495.33:240.33:030.36:158:15Full Moon21Wed
22Thu10:014.210:245.24:010.43:390.46:158:16Waning Gibbous22Thu
23Fri10:394.110:595.14:370.54:160.56:148:16Waning Gibbous23Fri
24Sat11:174.011:365.05:140.64:560.66:148:17Waning Gibbous24Sat
25Sun11:594.15:540.65:420.76:138:18Waning Gibbous25Sun
26Mon12:184.912:474.26:380.66:350.76:138:18Third Quarter26Mon
27Tue1:064.81:414.37:270.57:360.86:128:19Third Quarter27Tue
28Wed1:594.72:384.68:180.38:420.76:128:19Third Quarter28Wed
29Thu2:554.73:375.09:110.19:480.66:128:20Third Quarter29Thu
30Fri3:554.64:385.310:05-0.110:540.46:118:21Waning Crescent30Fri
31Sat4:584.65:395.711:01-0.311:560.16:118:21Waning Crescent31Sat
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 7:13 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 transitional phase. Tonight's moon is 67% 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 shifting between spring and neap.

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 First Quarter (67% illuminated). This places South Dewees Island, SC in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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