Tides Today & Tomorrow in South Dewees Island, SC

TIDE TIMES for Monday, August 3, 2026
The tide is currently falling in South Dewees Island, SC.
Next low tide : in 3h 26m at 5:44 pm (0.6 ft)
Next high tide : 11:53 pm (4.9 ft)
Sunset today : 8:15 pm
Sunrise tomorrow : 6:34 am
Moon phase : Waning Gibbous (75% illuminated)
Tide Station Location : Station #8665111
Common Questions About Tides

South Dewees Island, SC Tides - Aug 2094

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun12:205.712:535.46:14-0.56:420.16:338:17Third Quarter1Sun
2Mon1:155.41:525.57:08-0.37:460.36:348:16Third Quarter2Mon
3Tue2:105.12:495.58:02-0.28:490.56:348:15Third Quarter3Tue
4Wed3:054.83:455.58:570.09:500.66:358:14Third Quarter4Wed
5Thu4:004.64:415.59:510.110:480.66:368:13Waning Crescent5Thu
6Fri4:564.55:345.510:440.111:420.66:368:12Waning Crescent6Fri
7Sat5:494.56:235.511:350.26:378:11Waning Crescent7Sat
8Sun6:394.57:085.512:320.612:240.26:388:10Waning Crescent8Sun
9Mon7:254.67:495.61:180.51:100.26:388:10New Moon9Mon
10Tue8:094.78:295.52:000.51:530.26:398:09New Moon10Tue
11Wed8:524.79:075.52:390.52:350.36:408:07New Moon11Wed
12Thu9:334.79:435.43:160.53:140.46:408:06New Moon12Thu
13Fri10:124.710:185.33:490.53:530.56:418:05Waxing Crescent13Fri
14Sat10:494.710:515.14:210.64:310.66:428:04Waxing Crescent14Sat
15Sun11:244.711:255.04:520.65:100.86:428:03Waxing Crescent15Sun
16Mon12:004.75:260.65:540.96:438:02Waxing Crescent16Mon
17Tue12:014.812:404.86:030.66:441.06:448:01First Quarter17Tue
18Wed12:444.71:275.06:480.67:401.16:448:00First Quarter18Wed
19Thu1:344.62:225.17:390.68:411.16:457:59First Quarter19Thu
20Fri2:304.63:225.38:370.59:440.96:467:58First Quarter20Fri
21Sat3:324.64:285.59:380.410:460.76:467:56Waxing Gibbous21Sat
22Sun4:384.75:345.810:420.211:460.56:477:55Waxing Gibbous22Sun
23Mon5:454.96:356.111:45-0.16:487:54Waxing Gibbous23Mon
24Tue6:485.27:316.412:430.112:46-0.36:487:53Full Moon24Tue
25Wed7:465.58:256.51:37-0.11:44-0.46:497:52Full Moon25Wed
26Thu8:435.79:196.52:28-0.42:40-0.56:507:50Full Moon26Thu
27Fri9:405.910:126.33:19-0.53:36-0.56:507:49Waning Gibbous27Fri
28Sat10:366.011:046.14:08-0.54:30-0.36:517:48Waning Gibbous28Sat
29Sun11:326.011:565.84:56-0.45:250.06:527:47Waning Gibbous29Sun
30Mon12:285.95:45-0.26:230.36:527:45Waning Gibbous30Mon
31Tue12:505.41:245.86:370.07:240.66:537:44Third 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 8:48 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 75% 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 Gibbous (75% 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