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 4h 46m 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 - Aug 2008

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri8:295.08:566.12:13-0.12:15-0.56:338:17New Moon1Fri
2Sat9:245.19:455.93:02-0.23:08-0.46:338:16New Moon2Sat
3Sun10:175.210:315.73:49-0.23:59-0.26:348:15Waxing Crescent3Sun
4Mon11:075.211:155.44:32-0.24:490.06:358:14Waxing Crescent4Mon
5Tue11:555.211:585.15:150.05:380.46:358:13Waxing Crescent5Tue
6Wed12:435.15:560.26:290.76:368:12Waxing Crescent6Wed
7Thu12:424.81:315.16:390.47:230.96:378:12First Quarter7Thu
8Fri1:284.52:205.07:230.68:181.16:378:11First Quarter8Fri
9Sat2:164.33:095.08:100.79:131.26:388:10First Quarter9Sat
10Sun3:064.24:015.09:000.810:071.26:398:09First Quarter10Sun
11Mon4:004.14:545.19:510.810:591.16:398:08Waxing Gibbous11Mon
12Tue4:554.25:465.210:430.711:491.06:408:07Waxing Gibbous12Tue
13Wed5:494.36:345.311:340.66:418:06Waxing Gibbous13Wed
14Thu6:384.47:175.512:340.812:230.56:418:04Waxing Gibbous14Thu
15Fri7:224.67:575.61:160.71:080.46:428:03Full Moon15Fri
16Sat8:044.88:355.61:560.51:530.36:438:02Full Moon16Sat
17Sun8:444.99:115.62:340.32:370.26:448:01Full Moon17Sun
18Mon9:245.19:475.53:120.23:220.26:448:00Full Moon18Mon
19Tue10:055.310:255.43:500.14:070.36:457:59Waning Gibbous19Tue
20Wed10:495.411:075.24:290.04:550.46:467:58Waning Gibbous20Wed
21Thu11:365.511:545.05:120.05:480.66:467:57Waning Gibbous21Thu
22Fri12:315.65:590.16:470.86:477:55Third Quarter22Fri
23Sat12:494.81:325.66:540.17:520.96:487:54Third Quarter23Sat
24Sun1:534.62:395.67:550.29:000.96:487:53Third Quarter24Sun
25Mon3:014.63:485.78:590.210:070.86:497:52Third Quarter25Mon
26Tue4:124.64:585.810:050.211:100.76:507:51Waning Crescent26Tue
27Wed5:224.86:026.011:100.16:507:49Waning Crescent27Wed
28Thu6:255.06:576.112:080.512:110.06:517:48Waning Crescent28Thu
29Fri7:215.37:476.11:010.31:08-0.16:517:47New Moon29Fri
30Sat8:135.58:336.01:500.12:00-0.16:527:46New Moon30Sat
31Sun9:025.69:175.92:350.12:510.06:537:44New Moon31Sun
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 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