Tides Today & Tomorrow in South Dewees Island, SC

TIDE TIMES for Saturday, August 8, 2026
The tide is currently falling in South Dewees Island, SC.
Next low tide : in 6h 20m at 11:04 pm (0.6 ft)
Next high tide (tomorrow) : 5:06 am (4.5 ft)
Sunset today : 8:11 pm
Sunrise tomorrow : 6:37 am
Moon phase : Waning Crescent (22% illuminated)
Tide Station Location : Station #8665111
Common Questions About Tides

South Dewees Island, SC Tides - Aug 1947

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri8:084.48:425.42:060.51:530.36:328:18Full Moon1Fri
2Sat8:494.49:205.42:450.42:330.46:328:17Full Moon2Sat
3Sun9:294.59:555.33:210.43:130.46:338:16Full Moon3Sun
4Mon10:064.510:285.23:560.43:510.46:348:15Waning Gibbous4Mon
5Tue10:414.611:005.14:300.44:310.56:348:14Waning Gibbous5Tue
6Wed11:184.711:345.05:050.45:140.66:358:14Waning Gibbous6Wed
7Thu12:004.85:430.36:020.86:368:13Waning Gibbous7Thu
8Fri12:154.812:475.06:260.36:580.96:368:12Third Quarter8Fri
9Sat1:034.71:425.27:150.28:010.96:378:11Third Quarter9Sat
10Sun1:594.62:425.48:110.29:080.96:388:10Third Quarter10Sun
11Mon3:014.53:475.69:110.110:150.76:388:09Waning Crescent11Mon
12Tue4:104.54:565.810:130.011:200.56:398:08Waning Crescent12Tue
13Wed5:214.66:036.011:18-0.26:408:07Waning Crescent13Wed
14Thu6:284.87:046.212:210.312:20-0.46:418:06Waning Crescent14Thu
15Fri7:305.18:016.41:180.01:19-0.56:418:05New Moon15Fri
16Sat8:285.38:566.42:11-0.22:16-0.66:428:04New Moon16Sat
17Sun9:255.49:486.23:02-0.33:11-0.56:438:02New Moon17Sun
18Mon10:205.610:386.03:51-0.34:05-0.46:438:01Waxing Crescent18Mon
19Tue11:145.611:265.74:38-0.24:57-0.16:448:00Waxing Crescent19Tue
20Wed12:065.65:24-0.15:510.26:457:59Waxing Crescent20Wed
21Thu12:145.312:595.56:100.16:460.66:457:58First Quarter21Thu
22Fri1:025.01:515.46:580.47:440.86:467:57First Quarter22Fri
23Sat1:514.72:425.37:470.68:421.06:477:56First Quarter23Sat
24Sun2:424.53:345.38:380.89:371.16:477:54First Quarter24Sun
25Mon3:334.44:265.29:300.810:311.16:487:53Waxing Gibbous25Mon
26Tue4:274.45:185.310:220.911:221.06:497:52Waxing Gibbous26Tue
27Wed5:214.46:075.411:120.86:497:51Waxing Gibbous27Wed
28Thu6:124.66:525.512:090.912:010.76:507:50Waxing Gibbous28Thu
29Fri6:594.77:345.612:530.812:460.66:517:48Waxing Gibbous29Fri
30Sat7:414.88:135.61:330.71:290.66:517:47Full Moon30Sat
31Sun8:224.98:505.62:110.62:100.56:527:46Full 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 2:05 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 transitional phase. Tonight's moon is 22% 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 Crescent (22% 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