Tides Today & Tomorrow in South Dewees Island, SC

TIDE TIMES for Tuesday, June 23, 2026
The tide is currently falling in South Dewees Island, SC.
Next low tide : in 5h 48m at 10:11 pm (0.6 ft)
Next high tide (tomorrow) : 4:12 am (4.3 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 - Apr 2008

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue4:344.64:544.310:380.710:480.57:057:39Waning Crescent1Tue
2Wed5:314.85:504.711:290.411:470.27:047:40Waning Crescent2Wed
3Thu6:225.06:415.112:170.07:037:40Waning Crescent3Thu
4Fri7:095.17:285.612:42-0.11:03-0.37:027:41New Moon4Fri
5Sat7:545.28:145.91:34-0.31:48-0.57:007:42New Moon5Sat
6Sun8:415.29:026.12:26-0.52:34-0.76:597:42New Moon6Sun
7Mon9:295.19:516.23:17-0.53:21-0.76:587:43New Moon7Mon
8Tue10:214.910:446.14:08-0.54:09-0.66:567:44Waxing Crescent8Tue
9Wed11:154.711:405.95:01-0.35:00-0.46:557:44Waxing Crescent9Wed
10Thu12:154.55:570.05:56-0.16:547:45Waxing Crescent10Thu
11Fri12:425.61:204.46:590.26:590.16:537:46First Quarter11Fri
12Sat1:495.32:284.48:030.48:080.36:517:47First Quarter12Sat
13Sun2:565.23:344.59:070.49:160.46:507:47First Quarter13Sun
14Mon4:005.04:374.710:060.410:200.36:497:48Waxing Gibbous14Mon
15Tue4:595.05:354.911:000.311:200.26:487:49Waxing Gibbous15Tue
16Wed5:525.06:265.211:490.16:477:50Waxing Gibbous16Wed
17Thu6:384.97:105.412:140.112:330.16:457:50Waxing Gibbous17Thu
18Fri7:194.97:515.51:020.11:130.06:447:51Full Moon18Fri
19Sat7:584.88:295.61:470.01:510.06:437:52Full Moon19Sat
20Sun8:354.79:055.62:300.02:260.16:427:52Full Moon20Sun
21Mon9:124.69:405.53:100.12:590.26:417:53Full Moon21Mon
22Tue9:494.510:145.33:480.23:320.36:407:54Waning Gibbous22Tue
23Wed10:264.310:485.24:240.44:050.56:397:55Waning Gibbous23Wed
24Thu11:034.211:235.05:010.54:400.66:387:55Waning Gibbous24Thu
25Fri11:424.15:400.75:190.76:367:56Waning Gibbous25Fri
26Sat12:034.912:264.06:230.86:050.86:357:57Third Quarter26Sat
27Sun12:494.71:174.07:120.97:010.96:347:58Third Quarter27Sun
28Mon1:434.72:134.18:050.98:040.96:337:58Third Quarter28Mon
29Tue2:414.73:124.38:580.79:100.86:327:59Third Quarter29Tue
30Wed3:404.74:134.79:520.510:160.66:318:00Waning Crescent30Wed
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 1:11 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 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