Tides Today & Tomorrow in South Dewees Island, SC

TIDE TIMES for Monday, June 22, 2026
The tide is currently rising in South Dewees Island, SC.
Next low tide : 9:14 pm (0.5 ft)
Next high tide : in 4h 01m at 3:25 pm (5.0 ft)
Sunset today : 8:30 pm
Sunrise tomorrow : 6:11 am
Moon phase : First Quarter (58% illuminated)
Tide Station Location : Station #8665111
Common Questions About Tides

South Dewees Island, SC Tides - Apr 2010

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu10:215.010:565.84:09-0.64:12-0.57:067:38Waning Gibbous1Thu
2Fri11:084.811:445.54:58-0.34:56-0.17:057:39Waning Gibbous2Fri
3Sat11:574.55:470.15:420.27:037:40Waning Gibbous3Sat
4Sun12:345.212:484.36:390.46:330.57:027:41Third Quarter4Sun
5Mon1:274.91:434.17:340.77:300.87:017:41Third Quarter5Mon
6Tue2:224.72:394.18:300.88:310.97:007:42Third Quarter6Tue
7Wed3:184.53:364.19:240.89:321.06:587:43Third Quarter7Wed
8Thu4:134.54:334.310:150.810:290.96:577:43Waning Crescent8Thu
9Fri5:074.55:274.511:030.711:230.76:567:44Waning Crescent9Fri
10Sat5:564.66:154.811:460.56:557:45Waning Crescent10Sat
11Sun6:404.76:585.012:110.612:260.36:537:46Waning Crescent11Sun
12Mon7:214.77:375.212:560.41:040.26:527:46New Moon12Mon
13Tue7:594.78:135.41:380.31:410.16:517:47New Moon13Tue
14Wed8:364.78:485.52:190.22:180.06:507:48New Moon14Wed
15Thu9:124.69:225.63:000.12:55-0.16:487:48New Moon15Thu
16Fri9:484.59:595.63:400.13:35-0.16:477:49Waxing Crescent16Fri
17Sat10:274.410:405.64:220.24:170.06:467:50Waxing Crescent17Sat
18Sun11:114.411:285.55:070.35:040.06:457:51Waxing Crescent18Sun
19Mon12:034.35:560.45:570.16:447:51Waxing Crescent19Mon
20Tue12:245.41:064.46:530.46:590.26:437:52First Quarter20Tue
21Wed1:275.32:154.57:540.48:070.36:417:53First Quarter21Wed
22Thu2:355.23:234.78:570.39:160.26:407:54First Quarter22Thu
23Fri3:425.24:305.09:570.110:230.16:397:54Waxing Gibbous23Fri
24Sat4:475.25:335.410:54-0.111:27-0.16:387:55Waxing Gibbous24Sat
25Sun5:475.26:305.811:48-0.46:377:56Waxing Gibbous25Sun
26Mon6:425.27:226.112:26-0.312:39-0.56:367:56Waxing Gibbous26Mon
27Tue7:335.28:116.21:21-0.51:27-0.66:357:57Full Moon27Tue
28Wed8:215.18:586.22:13-0.52:14-0.56:347:58Full Moon28Wed
29Thu9:095.09:456.03:02-0.43:00-0.46:337:59Full Moon29Thu
30Fri9:564.810:305.83:50-0.33:45-0.26:327:59Waning Gibbous30Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8665111)

Common Questions About South Dewees Island, SC Tides

Show All
What time does the tide turn (slack tide) in South Dewees Island, SC today?

Slack tide in South Dewees Island, SC is approximately 6:19 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 neap phase. Tonight's moon is 58% 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 minimum.

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 (58% illuminated). This places South Dewees Island, SC in a neap tide cycle, so tidal ranges are near their weekly minimum 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