Tides Today & Tomorrow in South Dewees Island, SC

TIDE TIMES for Wednesday, July 8, 2026
The tide is currently falling in South Dewees Island, SC.
Next low tide : in 2h 03m at 9:06 pm (0.7 ft)
Next high tide (tomorrow) : 3:01 am (4.4 ft)
Sunset today : 8:30 pm
Sunrise tomorrow : 6:17 am
Moon phase : Third Quarter (41% illuminated)
Tide Station Location : Station #8665111
Common Questions About Tides

South Dewees Island, SC Tides - Sep 1987

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue1:314.62:275.57:390.58:521.16:537:44First Quarter1Tue
2Wed2:374.63:385.68:450.59:591.06:537:43First Quarter2Wed
3Thu3:484.64:515.89:530.411:020.76:547:42Waxing Gibbous3Thu
4Fri5:024.85:576.111:010.26:557:40Waxing Gibbous4Fri
5Sat6:095.16:566.312:020.412:060.06:557:39Waxing Gibbous5Sat
6Sun7:105.57:496.412:560.21:05-0.26:567:38Full Moon6Sun
7Mon8:055.88:396.41:47-0.12:02-0.26:577:36Full Moon7Mon
8Tue8:596.09:286.22:35-0.22:56-0.26:577:35Full Moon8Tue
9Wed9:506.110:155.93:22-0.33:480.06:587:34Waning Gibbous9Wed
10Thu10:406.111:015.64:06-0.24:380.26:597:32Waning Gibbous10Thu
11Fri11:296.011:485.24:500.05:290.66:597:31Waning Gibbous11Fri
12Sat12:185.85:340.36:220.97:007:30Waning Gibbous12Sat
13Sun12:374.91:095.66:200.67:181.27:017:28Third Quarter13Sun
14Mon1:284.72:015.47:110.98:151.47:017:27Third Quarter14Mon
15Tue2:214.52:545.38:051.19:121.57:027:26Third Quarter15Tue
16Wed3:154.53:495.29:001.110:071.57:027:24Third Quarter16Wed
17Thu4:114.54:435.39:561.110:581.47:037:23Waning Crescent17Thu
18Fri5:064.65:345.410:501.111:441.37:047:22Waning Crescent18Fri
19Sat5:584.86:215.511:400.97:047:20Waning Crescent19Sat
20Sun6:445.07:025.612:261.112:270.87:057:19Waning Crescent20Sun
21Mon7:265.27:405.61:041.01:110.77:067:17New Moon21Mon
22Tue8:055.38:165.61:390.81:530.67:067:16New Moon22Tue
23Wed8:425.58:505.52:130.72:350.67:077:15New Moon23Wed
24Thu9:175.69:235.42:470.63:170.67:087:13New Moon24Thu
25Fri9:515.79:595.33:220.54:000.77:087:12Waxing Crescent25Fri
26Sat10:295.810:385.13:590.54:440.87:097:11Waxing Crescent26Sat
27Sun11:125.811:244.94:400.55:331.07:107:09Waxing Crescent27Sun
28Mon12:045.75:260.66:291.17:107:08Waxing Crescent28Mon
29Tue12:184.81:085.76:210.77:331.27:117:07First Quarter29Tue
30Wed1:234.72:195.77:250.88:391.27:127:05First Quarter30Wed
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 12:03 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 neap phase. Tonight's moon is 41% 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 minimum.

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 Third Quarter (41% illuminated). This places South Dewees Island, SC in a neap tide cycle, so tidal ranges are near their weekly minimum 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