Tides Today & Tomorrow in South Dewees Island, SC

TIDE TIMES for Friday, August 7, 2026
The tide is currently falling in South Dewees Island, SC.
Next low tide : in 5h 58m at 9:58 pm (0.8 ft)
Next high tide (tomorrow) : 3:53 am (4.4 ft)
Sunset today : 8:12 pm
Sunrise tomorrow : 6:36 am
Moon phase : Third Quarter (32% illuminated)
Tide Station Location : Station #8665111
Common Questions About Tides

South Dewees Island, SC Tides - May 1949

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun10:354.210:435.44:310.44:190.36:318:00Waxing Crescent1Sun
2Mon11:144.111:275.35:120.55:030.36:308:01Waxing Crescent2Mon
3Tue12:024.15:590.65:530.46:298:01Waxing Crescent3Tue
4Wed12:195.21:004.16:520.66:530.56:288:02First Quarter4Wed
5Thu1:205.22:074.37:520.68:000.56:278:03First Quarter5Thu
6Fri2:265.13:154.58:520.49:090.46:268:04First Quarter6Fri
7Sat3:315.14:214.99:510.210:170.26:258:04Waxing Gibbous7Sat
8Sun4:365.25:255.310:48-0.111:22-0.16:258:05Waxing Gibbous8Sun
9Mon5:385.26:225.811:42-0.46:248:06Waxing Gibbous9Mon
10Tue6:345.27:166.112:22-0.312:33-0.66:238:07Waxing Gibbous10Tue
11Wed7:275.28:076.31:19-0.51:23-0.76:228:07Full Moon11Wed
12Thu8:195.18:586.32:13-0.52:13-0.66:218:08Full Moon12Thu
13Fri9:114.99:496.23:06-0.53:01-0.56:218:09Full Moon13Fri
14Sat10:034.710:396.03:57-0.43:50-0.36:208:09Waning Gibbous14Sat
15Sun10:554.511:315.64:47-0.14:380.06:198:10Waning Gibbous15Sun
16Mon11:484.35:370.15:280.36:198:11Waning Gibbous16Mon
17Tue12:235.312:434.26:280.46:220.76:188:12Waning Gibbous17Tue
18Wed1:165.01:394.27:220.67:220.96:178:12Third Quarter18Wed
19Thu2:094.82:354.28:150.78:231.06:178:13Third Quarter19Thu
20Fri3:004.63:284.39:050.79:221.06:168:14Third Quarter20Fri
21Sat3:504.54:204.59:520.610:181.06:158:14Third Quarter21Sat
22Sun4:394.45:114.710:360.511:110.96:158:15Waning Crescent22Sun
23Mon5:284.45:574.911:180.46:148:16Waning Crescent23Mon
24Tue6:144.46:405.212:000.711:58 AM0.36:148:16Waning Crescent24Tue
25Wed6:584.47:195.312:460.612:370.26:138:17Waning Crescent25Wed
26Thu7:394.37:575.51:290.41:160.26:138:18New Moon26Thu
27Fri8:194.38:345.52:110.41:550.16:138:18New Moon27Fri
28Sat8:584.29:115.62:520.32:360.16:128:19New Moon28Sat
29Sun9:384.29:505.53:330.33:180.16:128:20New Moon29Sun
30Mon10:204.110:335.54:150.34:030.16:128:20Waxing Crescent30Mon
31Tue11:064.111:205.44:580.34:510.16:118:21Waxing Crescent31Tue
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 12:55 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 32% 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 Third Quarter (32% 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