Tides Today & Tomorrow in South Dewees Island, SC

TIDE TIMES for Tuesday, June 23, 2026
The tide is currently rising in South Dewees Island, SC.
Next low tide : 10:11 pm (0.6 ft)
Next high tide : in 6h 01m at 4:16 pm (5.1 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 2041

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon9:025.69:236.02:37-0.82:53-0.87:057:39New Moon1Mon
2Tue9:495.410:106.03:28-0.73:37-0.77:047:40New Moon2Tue
3Wed10:365.110:565.84:17-0.54:20-0.57:037:40Waxing Crescent3Wed
4Thu11:224.711:435.55:05-0.25:04-0.27:017:41Waxing Crescent4Thu
5Fri12:104.45:540.25:490.27:007:42Waxing Crescent5Fri
6Sat12:305.21:024.26:470.56:390.56:597:42First Quarter6Sat
7Sun1:224.91:574.07:430.87:350.86:587:43First Quarter7Sun
8Mon2:174.72:544.08:410.98:350.96:567:44First Quarter8Mon
9Tue3:154.53:524.09:371.09:360.96:557:44First Quarter9Tue
10Wed4:134.54:494.210:300.910:330.86:547:45Waxing Gibbous10Wed
11Thu5:084.65:434.411:170.811:270.76:537:46Waxing Gibbous11Thu
12Fri5:584.76:304.712:000.66:517:47Waxing Gibbous12Fri
13Sat6:424.87:124.912:160.512:390.56:507:47Waxing Gibbous13Sat
14Sun7:224.87:515.11:010.31:150.36:497:48Full Moon14Sun
15Mon8:004.88:275.31:430.21:490.26:487:49Full Moon15Mon
16Tue8:364.89:015.42:250.12:240.16:477:50Full Moon16Tue
17Wed9:114.79:345.53:060.03:000.06:457:50Full Moon17Wed
18Thu9:474.610:095.53:470.13:370.06:447:51Waning Gibbous18Thu
19Fri10:264.510:495.54:300.14:180.16:437:52Waning Gibbous19Fri
20Sat11:104.411:385.45:160.25:040.26:427:52Waning Gibbous20Sat
21Sun12:024.36:080.45:570.36:417:53Waning Gibbous21Sun
22Mon12:365.31:054.27:060.57:000.46:407:54Third Quarter22Mon
23Tue1:445.22:154.38:090.48:100.46:397:55Third Quarter23Tue
24Wed2:565.23:264.59:120.39:220.36:387:55Third Quarter24Wed
25Thu4:055.24:354.810:120.110:310.26:367:56Waning Crescent25Thu
26Fri5:095.35:385.211:09-0.111:35-0.16:357:57Waning Crescent26Fri
27Sat6:085.46:355.612:02-0.46:347:58Waning Crescent27Sat
28Sun7:005.47:265.912:34-0.312:51-0.56:337:58Waning Crescent28Sun
29Mon7:495.38:146.11:29-0.41:38-0.66:327:59New Moon29Mon
30Tue8:365.29:006.12:21-0.42:24-0.66:318:00New Moon30Tue
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 7:13 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 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