Tides Today & Tomorrow in South Dewees Island, SC

TIDE TIMES for Sunday, June 28, 2026
The tide is currently falling in South Dewees Island, SC.
Next low tide : in 1h 16m at 1:09 pm (0.3 ft)
Next high tide : 8:01 pm (5.3 ft)
Sunset today : 8:31 pm
Sunrise tomorrow : 6:13 am
Moon phase : Full Moon (98% illuminated)
Tide Station Location : Station #8665111
Common Questions About Tides

South Dewees Island, SC Tides - Apr 2001

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun12:465.22:304.28:210.58:280.27:067:39First Quarter1Sun
2Mon2:595.23:444.49:280.49:380.17:047:39First Quarter2Mon
3Tue4:135.24:564.710:330.210:46-0.17:037:40Waxing Gibbous3Tue
4Wed5:235.46:015.011:33-0.111:50-0.47:027:41Waxing Gibbous4Wed
5Thu6:255.66:585.412:27-0.47:017:41Waxing Gibbous5Thu
6Fri7:185.77:505.812:49-0.61:18-0.66:597:42Full Moon6Fri
7Sat8:085.78:406.01:43-0.82:06-0.76:587:43Full Moon7Sat
8Sun8:565.69:286.02:36-0.82:51-0.76:577:44Full Moon8Sun
9Mon9:425.410:145.93:25-0.73:35-0.56:567:44Full Moon9Mon
10Tue10:275.110:595.84:13-0.54:17-0.36:547:45Waning Gibbous10Tue
11Wed11:124.811:445.55:00-0.24:590.06:537:46Waning Gibbous11Wed
12Thu11:584.55:480.15:420.36:527:46Waning Gibbous12Thu
13Fri12:315.212:474.36:380.46:290.76:517:47Third Quarter13Fri
14Sat1:214.91:404.17:310.77:230.96:497:48Third Quarter14Sat
15Sun2:144.72:354.18:260.88:211.06:487:49Third Quarter15Sun
16Mon3:094.63:314.19:190.99:211.06:477:49Third Quarter16Mon
17Tue4:054.64:274.210:110.810:190.96:467:50Third Quarter17Tue
18Wed5:004.65:214.410:590.711:130.86:457:51Waning Crescent18Wed
19Thu5:514.76:104.711:440.56:437:51Waning Crescent19Thu
20Fri6:374.86:545.012:030.612:250.46:427:52Waning Crescent20Fri
21Sat7:184.97:345.212:490.41:040.26:417:53Waning Crescent21Sat
22Sun7:574.98:115.41:330.21:420.06:407:54New Moon22Sun
23Mon8:354.98:475.62:160.12:20-0.16:397:54New Moon23Mon
24Tue9:124.89:245.72:580.03:00-0.26:387:55New Moon24Tue
25Wed9:514.710:035.73:420.03:41-0.26:377:56Waxing Crescent25Wed
26Thu10:344.610:475.74:260.04:25-0.16:367:57Waxing Crescent26Thu
27Fri11:214.511:385.65:140.15:130.06:357:57Waxing Crescent27Fri
28Sat12:184.46:070.26:070.16:347:58Waxing Crescent28Sat
29Sun12:365.51:234.47:060.37:100.26:337:59First Quarter29Sun
30Mon1:435.42:324.58:090.38:190.36:328:00First Quarter30Mon
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 4:35 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 98% 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 (98% 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