Tides Today & Tomorrow in South Dewees Island, SC

TIDE TIMES for Sunday, August 2, 2026
The tide is currently falling in South Dewees Island, SC.
Next low tide : in 5h 50m at 4:55 pm (0.5 ft)
Next high tide : 11:12 pm (5.0 ft)
Sunset today : 8:16 pm
Sunrise tomorrow : 6:33 am
Moon phase : Waning Gibbous (84% illuminated)
Tide Station Location : Station #8665111
Common Questions About Tides

South Dewees Island, SC Tides - Dec 2091

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat10:455.311:184.44:250.45:070.67:035:12Waning Gibbous1Sat
2Sun11:355.25:170.45:590.57:045:12Third Quarter2Sun
3Mon12:154.512:325.16:170.46:550.47:055:12Third Quarter3Mon
4Tue1:184.71:335.17:210.47:540.27:065:12Third Quarter4Tue
5Wed2:234.92:365.18:270.38:52-0.17:065:12Waning Crescent5Wed
6Thu3:295.33:415.19:330.19:51-0.37:075:12Waning Crescent6Thu
7Fri4:335.64:455.210:36-0.210:49-0.67:085:12Waning Crescent7Fri
8Sat5:326.05:445.311:35-0.411:44-0.87:095:12Waning Crescent8Sat
9Sun6:286.26:405.312:32-0.67:095:12New Moon9Sun
10Mon7:226.37:355.312:38-0.91:26-0.77:105:12New Moon10Mon
11Tue8:166.38:295.21:31-0.92:18-0.77:115:13New Moon11Tue
12Wed9:096.29:235.12:22-0.83:09-0.67:125:13Waxing Crescent12Wed
13Thu10:015.910:174.93:13-0.63:59-0.47:125:13Waxing Crescent13Thu
14Fri10:525.611:114.74:04-0.34:49-0.27:135:13Waxing Crescent14Fri
15Sat11:445.34:570.05:410.07:145:14Waxing Crescent15Sat
16Sun12:054.612:355.05:530.36:330.27:145:14First Quarter16Sun
17Mon1:004.51:264.76:520.57:250.37:155:14First Quarter17Mon
18Tue1:534.52:164.57:510.78:150.37:155:15First Quarter18Tue
19Wed2:464.53:074.48:480.79:040.37:165:15First Quarter19Wed
20Thu3:384.63:584.39:430.69:500.37:165:16Waxing Gibbous20Thu
21Fri4:294.84:484.310:340.510:350.27:175:16Waxing Gibbous21Fri
22Sat5:164.95:354.411:210.411:190.07:175:17Waxing Gibbous22Sat
23Sun6:005.16:194.412:050.37:185:17Waxing Gibbous23Sun
24Mon6:405.27:014.412:00-0.112:470.27:185:18Full Moon24Mon
25Tue7:195.37:414.412:40-0.21:260.17:195:18Full Moon25Tue
26Wed7:565.38:194.41:20-0.22:040.07:195:19Full Moon26Wed
27Thu8:325.38:554.32:00-0.32:420.07:195:20Full Moon27Thu
28Fri9:075.29:324.32:41-0.33:200.07:205:20Waning Gibbous28Fri
29Sat9:455.210:134.43:24-0.34:00-0.17:205:21Waning Gibbous29Sat
30Sun10:275.111:004.44:09-0.24:44-0.17:205:22Waning Gibbous30Sun
31Mon11:155.011:544.45:00-0.15:33-0.17:215:22Third Quarter31Mon
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 8:03 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 spring phase. Tonight's moon is 84% 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 maximum.

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 (84% illuminated). This places South Dewees Island, SC in a spring tide cycle, so tidal ranges are near their weekly maximum 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