Tides Today & Tomorrow in South Dewees Island, SC

TIDE TIMES for Thursday, July 9, 2026
The tide is currently rising in South Dewees Island, SC.
Next low tide : 10:13 pm (0.5 ft)
Next high tide : in 2h 39m at 3:49 pm (5.4 ft)
Sunset today : 8:30 pm
Sunrise tomorrow : 6:18 am
Moon phase : Waning Crescent (30% illuminated)
Tide Station Location : Station #8665111
Common Questions About Tides

South Dewees Island, SC Tides - Jul 2064

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue10:314.411:005.24:190.04:160.26:148:31Waning Gibbous1Tue
2Wed11:184.411:415.05:000.15:000.46:158:31Waning Gibbous2Wed
3Thu12:044.45:400.35:450.76:158:31Waning Gibbous3Thu
4Fri12:214.812:504.46:200.46:340.96:168:30Third Quarter4Fri
5Sat1:034.51:374.47:000.47:261.06:168:30Third Quarter5Sat
6Sun1:484.32:244.57:420.58:211.16:178:30Third Quarter6Sun
7Mon2:344.13:124.68:260.59:171.16:178:30Third Quarter7Mon
8Tue3:234.04:014.89:110.510:131.16:188:30Third Quarter8Tue
9Wed4:153.94:534.910:000.411:070.96:188:29Waning Crescent9Wed
10Thu5:103.95:455.110:510.311:590.86:198:29Waning Crescent10Thu
11Fri6:034.06:345.311:430.26:208:29Waning Crescent11Fri
12Sat6:534.17:215.512:480.612:340.06:208:29New Moon12Sat
13Sun7:414.38:065.71:350.41:24-0.26:218:28New Moon13Sun
14Mon8:294.48:515.82:210.22:14-0.36:218:28New Moon14Mon
15Tue9:184.69:385.83:060.03:05-0.46:228:27New Moon15Tue
16Wed10:094.810:245.83:50-0.23:56-0.46:228:27Waxing Crescent16Wed
17Thu11:015.011:125.64:35-0.34:48-0.36:238:26Waxing Crescent17Thu
18Fri11:565.15:21-0.45:43-0.16:248:26Waxing Crescent18Fri
19Sat12:035.412:535.26:09-0.46:430.16:248:25First Quarter19Sat
20Sun12:565.11:525.47:01-0.37:460.36:258:25First Quarter20Sun
21Mon1:524.82:525.57:57-0.28:510.46:268:24First Quarter21Mon
22Tue2:514.63:535.58:54-0.29:560.46:268:24First Quarter22Tue
23Wed3:534.44:555.69:53-0.110:580.46:278:23Waxing Gibbous23Wed
24Thu4:564.35:555.710:53-0.111:560.36:288:22Waxing Gibbous24Thu
25Fri5:584.46:505.711:51-0.16:288:22Waxing Gibbous25Fri
26Sat6:544.47:405.712:500.312:450.06:298:21Full Moon26Sat
27Sun7:454.58:255.71:400.21:360.06:308:20Full Moon27Sun
28Mon8:334.69:085.62:260.12:240.16:308:20Full Moon28Mon
29Tue9:194.79:485.43:080.13:090.26:318:19Full Moon29Tue
30Wed10:024.710:265.23:480.23:520.36:328:18Waning Gibbous30Wed
31Thu10:444.711:035.04:240.34:320.66:328:17Waning Gibbous31Thu
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 7:01 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 30% 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 (30% 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