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 03m 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 - Jan 2092

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:104.95:580.06:29-0.17:215:23Third Quarter1Tue
2Wed12:564.61:104.77:030.07:28-0.27:215:24Third Quarter2Wed
3Thu2:034.82:154.68:100.08:28-0.47:215:25Third Quarter3Thu
4Fri3:115.03:224.69:17-0.19:30-0.57:215:25Waning Crescent4Fri
5Sat4:185.34:294.610:22-0.310:30-0.77:215:26Waning Crescent5Sat
6Sun5:215.55:314.711:22-0.511:28-0.97:215:27Waning Crescent6Sun
7Mon6:185.86:284.812:19-0.77:215:28New Moon7Mon
8Tue7:115.97:224.812:23-1.01:12-0.87:215:29New Moon8Tue
9Wed8:035.98:144.81:16-1.02:02-0.97:215:29New Moon9Wed
10Thu8:525.79:054.82:07-1.02:50-0.87:215:30New Moon10Thu
11Fri9:405.59:544.72:56-0.83:36-0.67:215:31Waxing Crescent11Fri
12Sat10:255.210:424.53:43-0.54:21-0.47:215:32Waxing Crescent12Sat
13Sun11:104.911:304.44:31-0.25:05-0.27:215:33Waxing Crescent13Sun
14Mon11:564.65:210.15:510.07:215:34First Quarter14Mon
15Tue12:194.312:434.36:140.46:380.27:215:35First Quarter15Tue
16Wed1:104.21:314.17:100.67:270.27:205:36First Quarter16Wed
17Thu2:014.22:224.08:060.68:150.37:205:37First Quarter17Thu
18Fri2:534.33:153.99:020.69:040.27:205:38Waxing Gibbous18Fri
19Sat3:474.44:103.99:570.59:540.17:205:38Waxing Gibbous19Sat
20Sun4:404.65:024.010:470.410:420.07:195:39Waxing Gibbous20Sun
21Mon5:284.75:504.111:340.211:28-0.27:195:40Waxing Gibbous21Mon
22Tue6:124.96:334.212:170.17:185:41Waxing Gibbous22Tue
23Wed6:535.17:154.312:13-0.412:58-0.17:185:42Full Moon23Wed
24Thu7:335.27:544.412:56-0.51:38-0.37:185:43Full Moon24Thu
25Fri8:115.38:334.51:40-0.72:18-0.47:175:44Full Moon25Fri
26Sat8:495.39:134.52:23-0.72:58-0.57:175:45Waning Gibbous26Sat
27Sun9:295.29:564.63:08-0.73:39-0.57:165:46Waning Gibbous27Sun
28Mon10:125.110:444.73:56-0.64:23-0.57:155:47Waning Gibbous28Mon
29Tue11:004.911:394.74:47-0.55:11-0.57:155:48Waning Gibbous29Tue
30Wed11:544.75:45-0.36:05-0.47:145:49Third Quarter30Wed
31Thu12:414.712:554.56:49-0.17:05-0.47:145:50Third Quarter31Thu
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