Tides Today & Tomorrow in South Dewees Island, SC

TIDE TIMES for Thursday, June 25, 2026
The tide is currently rising in South Dewees Island, SC.
Next low tide : 11:55 pm (0.5 ft)
Next high tide : in 3h 16m at 5:53 pm (5.2 ft)
Sunset today : 8:30 pm
Sunrise tomorrow : 6:12 am
Moon phase : Waxing Gibbous (84% illuminated)
Tide Station Location : Station #8665111
Common Questions About Tides

South Dewees Island, SC Tides - Sep 2044

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu3:354.34:275.29:271.110:331.36:547:43Waxing Gibbous1Thu
2Fri4:304.45:215.310:211.011:231.26:547:41Waxing Gibbous2Fri
3Sat5:254.56:105.411:140.96:557:40Waxing Gibbous3Sat
4Sun6:164.76:535.512:081.112:030.86:567:39Waxing Gibbous4Sun
5Mon7:014.97:335.612:500.912:490.76:567:37Full Moon5Mon
6Tue7:425.18:115.61:290.71:320.66:577:36Full Moon6Tue
7Wed8:215.28:465.62:050.62:150.56:587:35Full Moon7Wed
8Thu8:585.49:205.52:420.42:580.56:587:33Full Moon8Thu
9Fri9:355.69:555.43:180.33:410.66:597:32Waning Gibbous9Fri
10Sat10:145.710:335.23:560.34:260.76:597:31Waning Gibbous10Sat
11Sun10:575.811:175.04:360.35:150.87:007:29Waning Gibbous11Sun
12Mon11:475.85:200.36:091.07:017:28Waning Gibbous12Mon
13Tue12:084.812:465.86:120.47:111.17:017:27Third Quarter13Tue
14Wed1:104.71:535.77:120.58:191.27:027:25Third Quarter14Wed
15Thu2:204.63:045.88:180.69:261.17:037:24Third Quarter15Thu
16Fri3:334.74:155.89:270.510:310.97:037:23Waning Crescent16Fri
17Sat4:454.95:226.010:340.411:300.77:047:21Waning Crescent17Sat
18Sun5:505.26:216.111:370.27:057:20Waning Crescent18Sun
19Mon6:485.67:126.212:240.412:360.17:057:19Waning Crescent19Mon
20Tue7:415.97:596.11:130.21:300.07:067:17New Moon20Tue
21Wed8:306.18:446.01:590.12:220.07:067:16New Moon21Wed
22Thu9:176.29:275.82:430.13:110.17:077:15New Moon22Thu
23Fri10:036.110:105.53:250.23:580.37:087:13Waxing Crescent23Fri
24Sat10:476.010:525.24:050.34:440.67:087:12Waxing Crescent24Sat
25Sun11:305.811:355.04:430.65:300.97:097:10Waxing Crescent25Sun
26Mon12:165.65:230.86:181.27:107:09Waxing Crescent26Mon
27Tue12:204.71:045.46:051.17:091.47:107:08First Quarter27Tue
28Wed1:104.61:565.26:531.38:041.67:117:06First Quarter28Wed
29Thu2:044.52:505.27:481.48:581.67:127:05First Quarter29Thu
30Fri2:594.53:455.28:461.49:501.57:127:04First Quarter30Fri
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 8:54 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 spring phase. Tonight's moon is 84% 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 Waxing Gibbous (84% 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