Tides Today & Tomorrow in South Dewees Island, SC

TIDE TIMES for Wednesday, August 5, 2026
The tide is currently falling in South Dewees Island, SC.
Next low tide : in 3h 54m at 7:43 pm (0.8 ft)
Next high tide (tomorrow) : 1:39 am (4.5 ft)
Sunset today : 8:14 pm
Sunrise tomorrow : 6:35 am
Moon phase : Third Quarter (55% illuminated)
Tide Station Location : Station #8665111
Common Questions About Tides

South Dewees Island, SC Tides - Feb 2099

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun3:374.74:073.710:030.49:58-0.27:135:51Waxing Gibbous1Sun
2Mon4:455.05:124.011:030.111:00-0.57:125:52Waxing Gibbous2Mon
3Tue5:455.36:094.311:58-0.211:58-0.97:115:53Waxing Gibbous3Tue
4Wed6:405.67:034.712:49-0.57:105:54Full Moon4Wed
5Thu7:325.87:564.912:54-1.11:38-0.87:105:55Full Moon5Thu
6Fri8:225.88:495.11:47-1.32:26-1.07:095:56Full Moon6Fri
7Sat9:115.79:425.32:40-1.33:12-1.07:085:57Waning Gibbous7Sat
8Sun10:005.410:355.33:33-1.13:59-0.97:075:58Waning Gibbous8Sun
9Mon10:505.111:305.24:27-0.84:46-0.77:065:59Waning Gibbous9Mon
10Tue11:424.75:23-0.55:37-0.57:055:59Third Quarter10Tue
11Wed12:275.112:364.36:25-0.16:32-0.27:056:00Third Quarter11Wed
12Thu1:274.91:344.07:290.27:300.07:046:01Third Quarter12Thu
13Fri2:284.82:353.88:320.38:310.27:036:02Third Quarter13Fri
14Sat3:324.73:373.79:340.49:320.27:026:03Waning Crescent14Sat
15Sun4:334.74:373.810:310.310:300.27:016:04Waning Crescent15Sun
16Mon5:274.75:304.011:220.311:220.17:006:05Waning Crescent16Mon
17Tue6:134.86:164.112:070.26:596:06Waning Crescent17Tue
18Wed6:544.96:584.312:090.012:480.16:586:07New Moon18Wed
19Thu7:324.97:384.412:52-0.11:260.06:576:07New Moon19Thu
20Fri8:074.98:154.51:31-0.12:00-0.16:566:08New Moon20Fri
21Sat8:414.88:494.62:08-0.12:320.06:546:09New Moon21Sat
22Sun9:134.69:214.62:440.03:020.06:536:10Waxing Crescent22Sun
23Mon9:434.49:514.63:190.13:310.06:526:11Waxing Crescent23Mon
24Tue10:124.210:224.63:550.24:030.16:516:12Waxing Crescent24Tue
25Wed10:444.011:004.64:340.44:390.26:506:12Waxing Crescent25Wed
26Thu11:233.911:464.65:190.65:230.26:496:13First Quarter26Thu
27Fri12:133.86:150.76:160.36:486:14First Quarter27Fri
28Sat12:434.61:153.77:190.87:190.36:466:15First Quarter28Sat
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 10:41 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 neap phase. Tonight's moon is 55% 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 minimum.

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 (55% illuminated). This places South Dewees Island, SC in a neap tide cycle, so tidal ranges are near their weekly minimum 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