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 4h 15m 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 2048

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun8:045.28:315.31:47-0.72:04-0.66:456:16Full Moon1Sun
2Mon8:455.19:145.42:33-0.72:45-0.76:446:17Waning Gibbous2Mon
3Tue9:285.010:005.43:21-0.63:29-0.66:436:18Waning Gibbous3Tue
4Wed10:154.810:525.34:11-0.44:15-0.56:416:18Waning Gibbous4Wed
5Thu11:084.611:525.25:05-0.25:07-0.46:406:19Waning Gibbous5Thu
6Fri12:094.36:060.06:08-0.26:396:20Third Quarter6Fri
7Sat1:005.11:174.27:120.27:150.06:386:21Third Quarter7Sat
8Sun3:115.03:284.29:180.29:250.07:367:22Third Quarter8Sun
9Mon4:225.04:394.410:220.110:33-0.17:357:22Waning Crescent9Mon
10Tue5:285.15:444.611:22-0.111:37-0.27:347:23Waning Crescent10Tue
11Wed6:255.26:404.912:15-0.37:327:24Waning Crescent11Wed
12Thu7:145.37:305.212:33-0.41:04-0.47:317:25Waning Crescent12Thu
13Fri7:595.38:145.31:25-0.51:48-0.57:307:25New Moon13Fri
14Sat8:405.28:565.42:13-0.52:30-0.57:297:26New Moon14Sat
15Sun9:205.19:365.42:58-0.43:09-0.47:277:27New Moon15Sun
16Mon9:584.910:135.33:39-0.33:45-0.37:267:28Waxing Crescent16Mon
17Tue10:354.710:495.24:19-0.14:20-0.17:257:28Waxing Crescent17Tue
18Wed11:134.411:265.04:580.24:550.17:237:29Waxing Crescent18Wed
19Thu11:534.25:370.45:310.37:227:30Waxing Crescent19Thu
20Fri12:054.812:364.06:190.76:130.57:217:30First Quarter20Fri
21Sat12:494.61:253.97:060.97:020.77:197:31First Quarter21Sat
22Sun1:404.52:203.88:001.07:580.87:187:32First Quarter22Sun
23Mon2:374.43:183.98:561.09:000.77:177:33First Quarter23Mon
24Tue3:374.54:184.09:520.910:010.67:157:33First Quarter24Tue
25Wed4:374.65:164.310:460.711:010.47:147:34Waxing Gibbous25Wed
26Thu5:334.76:084.711:350.411:560.17:137:35Waxing Gibbous26Thu
27Fri6:244.96:555.012:220.17:127:35Waxing Gibbous27Fri
28Sat7:095.17:405.412:49-0.21:07-0.27:107:36Full Moon28Sat
29Sun7:545.28:245.71:39-0.41:51-0.47:097:37Full Moon29Sun
30Mon8:385.29:105.92:29-0.62:36-0.67:087:38Full Moon30Mon
31Tue9:255.29:586.03:18-0.63:22-0.77:067:38Full Moon31Tue
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