Tides Today & Tomorrow in South Dewees Island, SC

TIDE TIMES for Sunday, July 5, 2026
The tide is currently rising in South Dewees Island, SC.
Next low tide : 6:00 pm (0.6 ft)
Next high tide : in 5h 09m at 12:06 pm (4.4 ft)
Sunset today : 8:30 pm
Sunrise tomorrow : 6:16 am
Moon phase : Waning Gibbous (72% illuminated)
Tide Station Location : Station #8665111
Common Questions About Tides

South Dewees Island, SC Tides - Sep 1993

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed8:405.39:045.52:230.42:370.56:537:43Full Moon1Wed
2Thu9:195.39:405.42:590.43:170.66:547:42Full Moon2Thu
3Fri9:565.310:165.23:330.53:540.76:547:41Waning Gibbous3Fri
4Sat10:315.310:505.04:060.64:310.96:557:40Waning Gibbous4Sat
5Sun11:065.211:254.84:380.75:081.16:567:38Waning Gibbous5Sun
6Mon11:425.25:130.75:491.26:567:37Waning Gibbous6Mon
7Tue12:024.612:245.25:530.86:361.46:577:36Third Quarter7Tue
8Wed12:454.51:135.26:400.97:311.46:587:34Third Quarter8Wed
9Thu1:364.52:095.37:350.88:311.46:587:33Third Quarter9Thu
10Fri2:354.53:105.48:350.89:311.26:597:32Third Quarter10Fri
11Sat3:384.74:125.69:370.610:301.07:007:30Waning Crescent11Sat
12Sun4:434.95:145.810:400.411:270.77:007:29Waning Crescent12Sun
13Mon5:455.36:126.111:410.17:017:28Waning Crescent13Mon
14Tue6:435.77:056.312:200.312:39-0.17:027:26New Moon14Tue
15Wed7:376.17:566.31:110.01:35-0.37:027:25New Moon15Wed
16Thu8:306.38:476.32:01-0.32:30-0.47:037:24New Moon16Thu
17Fri9:246.59:396.22:50-0.43:24-0.37:037:22New Moon17Fri
18Sat10:206.610:335.93:39-0.44:18-0.27:047:21Waxing Crescent18Sat
19Sun11:166.511:275.64:29-0.35:120.17:057:19Waxing Crescent19Sun
20Mon12:146.35:200.06:090.47:057:18Waxing Crescent20Mon
21Tue12:245.41:146.16:150.27:100.77:067:17First Quarter21Tue
22Wed1:245.12:155.97:150.58:120.97:077:15First Quarter22Wed
23Thu2:255.03:155.78:180.79:120.97:077:14First Quarter23Thu
24Fri3:245.04:125.69:200.810:081.07:087:13First Quarter24Fri
25Sat4:235.05:065.610:190.911:000.97:097:11Waxing Gibbous25Sat
26Sun5:185.15:545.611:130.811:480.87:097:10Waxing Gibbous26Sun
27Mon6:075.36:385.612:040.87:107:09Waxing Gibbous27Mon
28Tue6:525.57:185.612:310.712:500.77:117:07Waxing Gibbous28Tue
29Wed7:335.67:565.61:100.61:330.77:117:06Full Moon29Wed
30Thu8:125.78:335.51:480.62:130.77:127:05Full Moon30Thu
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 3:03 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 72% 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 Waning Gibbous (72% 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