Tides Today & Tomorrow in South Dewees Island, SC

TIDE TIMES for Thursday, July 16, 2026
The tide is currently falling in South Dewees Island, SC.
Next low tide : in 3h 53m at 4:03 pm (-0.5 ft)
Next high tide : 10:43 pm (5.9 ft)
Sunset today : 8:27 pm
Sunrise tomorrow : 6:22 am
Moon phase : Waxing Crescent (7% illuminated)
Tide Station Location : Station #8665111
Common Questions About Tides

South Dewees Island, SC Tides - Nov 2071

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun2:164.72:475.18:051.38:461.16:365:27First Quarter1Sun
2Mon3:094.93:395.19:011.29:330.96:375:27Waxing Gibbous2Mon
3Tue4:015.14:295.29:551.010:190.76:385:26Waxing Gibbous3Tue
4Wed4:505.35:155.310:470.811:030.56:395:25Waxing Gibbous4Wed
5Thu5:355.65:595.311:350.611:470.36:405:24Waxing Gibbous5Thu
6Fri6:185.86:405.412:220.46:415:23Full Moon6Fri
7Sat6:596.07:225.412:300.11:090.36:425:22Full Moon7Sat
8Sun7:416.28:065.41:15-0.11:560.26:435:22Full Moon8Sun
9Mon8:266.28:535.32:01-0.22:440.16:435:21Waning Gibbous9Mon
10Tue9:156.29:455.22:48-0.23:330.26:445:20Waning Gibbous10Tue
11Wed10:086.110:425.13:38-0.14:250.26:455:20Waning Gibbous11Wed
12Thu11:056.011:445.14:320.05:210.36:465:19Waning Gibbous12Thu
13Fri12:085.85:310.26:210.46:475:18Third Quarter13Fri
14Sat12:515.11:125.76:360.37:230.46:485:18Third Quarter14Sat
15Sun1:565.22:145.67:430.38:230.36:495:17Third Quarter15Sun
16Mon3:005.43:165.58:480.39:200.16:505:17Waning Crescent16Mon
17Tue4:015.64:145.49:500.210:150.06:515:16Waning Crescent17Tue
18Wed4:585.85:095.410:480.111:06-0.16:525:16Waning Crescent18Wed
19Thu5:496.05:585.411:420.011:54-0.26:525:15Waning Crescent19Thu
20Fri6:366.16:445.312:32-0.16:535:15New Moon20Fri
21Sat7:216.17:275.212:39-0.21:200.06:545:14New Moon21Sat
22Sun8:046.08:105.11:23-0.12:050.06:555:14New Moon22Sun
23Mon8:455.88:524.92:040.02:470.26:565:14New Moon23Mon
24Tue9:255.69:344.82:440.23:280.36:575:13Waxing Crescent24Tue
25Wed10:055.410:164.63:220.44:080.56:585:13Waxing Crescent25Wed
26Thu10:455.211:004.54:010.64:480.76:595:13Waxing Crescent26Thu
27Fri11:285.011:474.44:410.85:300.87:005:12Waxing Crescent27Fri
28Sat12:144.85:270.96:160.97:005:12First Quarter28Sat
29Sun12:364.41:034.76:201.07:040.87:015:12First Quarter29Sun
30Mon1:284.41:534.67:171.17:530.87:025:12First Quarter30Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8665111)

Common Questions About South Dewees Island, SC Tides

Show All
What time does the tide turn (slack tide) in South Dewees Island, SC today?

Slack tide in South Dewees Island, SC is approximately 7:23 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 7% 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 Waxing Crescent (7% 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