Tides Today & Tomorrow in South Dewees Island, SC

TIDE TIMES for Tuesday, August 4, 2026
The tide is currently falling in South Dewees Island, SC.
Next low tide : in 28m at 6:04 am (0.1 ft)
Next high tide : 12:28 pm (5.1 ft)
Sunset today : 8:15 pm
Sunrise tomorrow : 6:34 am
Moon phase : Third Quarter (66% illuminated)
Tide Station Location : Station #8665111
Common Questions About Tides

South Dewees Island, SC Tides - Jan 2096

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun11:494.95:19-0.16:01-0.27:215:23First Quarter1Sun
2Mon12:184.512:464.76:220.16:57-0.27:215:24First Quarter2Mon
3Tue1:224.71:484.67:300.17:55-0.37:215:25First Quarter3Tue
4Wed2:274.92:524.48:390.18:53-0.47:215:25Waxing Gibbous4Wed
5Thu3:345.13:584.39:470.09:53-0.57:215:26Waxing Gibbous5Thu
6Fri4:395.35:014.410:50-0.110:51-0.77:215:27Waxing Gibbous6Fri
7Sat5:395.56:004.411:48-0.311:46-0.87:215:28Waxing Gibbous7Sat
8Sun6:335.76:544.512:43-0.47:215:29Full Moon8Sun
9Mon7:255.77:454.512:40-0.81:33-0.57:215:29Full Moon9Mon
10Tue8:145.68:354.51:31-0.82:21-0.47:215:30Full Moon10Tue
11Wed9:005.49:234.42:19-0.73:06-0.37:215:31Waning Gibbous11Wed
12Thu9:445.210:094.43:06-0.53:48-0.27:215:32Waning Gibbous12Thu
13Fri10:264.910:554.33:51-0.34:290.07:215:33Waning Gibbous13Fri
14Sat11:074.611:424.24:370.05:100.27:215:34Waning Gibbous14Sat
15Sun11:504.45:240.35:520.37:215:35Third Quarter15Sun
16Mon12:304.112:344.16:160.56:350.47:205:36Third Quarter16Mon
17Tue1:194.11:223.97:120.67:200.57:205:37Third Quarter17Tue
18Wed2:104.12:123.88:080.78:070.47:205:38Third Quarter18Wed
19Thu3:034.23:063.79:050.78:570.47:205:39Waning Crescent19Thu
20Fri3:574.44:023.710:000.59:480.37:195:39Waning Crescent20Fri
21Sat4:504.64:563.810:520.410:390.17:195:40Waning Crescent21Sat
22Sun5:394.85:453.911:400.211:28-0.17:185:41Waning Crescent22Sun
23Mon6:245.06:294.112:250.07:185:42New Moon23Mon
24Tue7:075.27:124.212:15-0.41:08-0.27:185:43New Moon24Tue
25Wed7:485.37:554.41:02-0.61:51-0.47:175:44New Moon25Wed
26Thu8:305.48:384.51:48-0.72:33-0.57:175:45New Moon26Thu
27Fri9:125.39:244.62:35-0.83:15-0.67:165:46Waxing Crescent27Fri
28Sat9:555.210:124.73:22-0.73:59-0.67:155:47Waxing Crescent28Sat
29Sun10:425.011:054.84:13-0.64:45-0.67:155:48Waxing Crescent29Sun
30Mon11:334.85:08-0.35:36-0.57:145:49First Quarter30Mon
31Tue12:024.812:294.56:11-0.16:31-0.57:145:50First Quarter31Tue
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 9:16 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 66% 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 (66% 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