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 13m at 1:27 am (0.4 ft)
Next high tide : 7:23 am (4.1 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 - Jan 2002

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue9:065.89:344.62:31-0.93:19-0.57:215:23Waning Gibbous1Tue
2Wed9:575.710:284.63:22-0.84:07-0.57:215:24Waning Gibbous2Wed
3Thu10:505.511:274.74:16-0.74:58-0.47:215:25Waning Gibbous3Thu
4Fri11:455.25:13-0.55:53-0.47:215:25Third Quarter4Fri
5Sat12:284.712:435.06:16-0.36:50-0.37:225:26Third Quarter5Sat
6Sun1:314.81:424.77:22-0.17:47-0.37:225:27Third Quarter6Sun
7Mon2:334.92:414.58:280.08:44-0.37:225:28Third Quarter7Mon
8Tue3:365.03:424.39:320.09:41-0.37:225:29Waning Crescent8Tue
9Wed4:365.24:404.210:32-0.110:35-0.47:225:30Waning Crescent9Wed
10Thu5:305.35:344.211:27-0.211:27-0.47:225:30Waning Crescent10Thu
11Fri6:205.36:234.312:18-0.27:225:31New Moon11Fri
12Sat7:055.37:094.312:16-0.41:05-0.37:215:32New Moon12Sat
13Sun7:485.37:524.31:01-0.41:48-0.27:215:33New Moon13Sun
14Mon8:295.28:344.31:45-0.32:29-0.27:215:34New Moon14Mon
15Tue9:075.09:144.22:25-0.23:07-0.17:215:35Waxing Crescent15Tue
16Wed9:454.89:544.13:04-0.13:430.07:215:36Waxing Crescent16Wed
17Thu10:214.610:334.13:410.14:180.17:205:37Waxing Crescent17Thu
18Fri10:584.411:134.04:190.34:540.27:205:38Waxing Crescent18Fri
19Sat11:374.211:564.05:010.45:320.37:205:39First Quarter19Sat
20Sun12:194.05:490.66:140.47:205:39First Quarter20Sun
21Mon12:434.11:063.96:450.77:020.37:195:40First Quarter21Mon
22Tue1:344.11:583.77:450.77:540.37:195:41First Quarter22Tue
23Wed2:304.32:563.78:470.78:490.17:185:42First Quarter23Wed
24Thu3:304.53:583.89:490.59:47-0.17:185:43Waxing Gibbous24Thu
25Fri4:314.84:583.910:480.210:44-0.47:175:44Waxing Gibbous25Fri
26Sat5:285.15:534.211:42-0.111:40-0.77:175:45Waxing Gibbous26Sat
27Sun6:215.46:444.412:33-0.47:165:46Full Moon27Sun
28Mon7:125.77:364.612:33-0.91:23-0.67:165:47Full Moon28Mon
29Tue8:025.88:284.81:26-1.12:11-0.87:155:48Full Moon29Tue
30Wed8:535.89:215.02:18-1.22:59-0.97:155:49Waning Gibbous30Wed
31Thu9:435.710:145.03:11-1.23:46-0.97:145:50Waning Gibbous31Thu
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 4:25 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 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