Tides Today & Tomorrow in South Dewees Island, SC

TIDE TIMES for Wednesday, July 29, 2026
The tide is currently falling in South Dewees Island, SC.
Next low tide (tomorrow) : in 4h 16m at 2:55 am (0.4 ft)
Next high tide (tomorrow) : 9:02 am (4.5 ft)
Sunset today : 8:19 pm
Sunrise tomorrow : 6:30 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #8665111
Common Questions About Tides

South Dewees Island, SC Tides - Oct 2084

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun9:196.09:285.42:470.43:280.57:137:02New Moon1Sun
2Mon10:006.010:105.33:280.34:150.67:147:01Waxing Crescent2Mon
3Tue10:466.010:585.14:120.35:040.77:156:59Waxing Crescent3Tue
4Wed11:395.911:535.04:590.45:570.97:156:58Waxing Crescent4Wed
5Thu12:415.95:530.56:571.07:166:57First Quarter5Thu
6Fri12:574.91:505.86:560.68:021.07:176:56First Quarter6Fri
7Sat2:074.92:585.88:040.79:050.97:186:54First Quarter7Sat
8Sun3:165.14:045.99:140.610:050.77:186:53Waxing Gibbous8Sun
9Mon4:245.35:055.910:210.511:020.57:196:52Waxing Gibbous9Mon
10Tue5:275.66:016.011:230.411:540.27:206:50Waxing Gibbous10Tue
11Wed6:246.06:526.012:210.37:206:49Waxing Gibbous11Wed
12Thu7:156.27:395.912:430.11:150.27:216:48Full Moon12Thu
13Fri8:026.48:245.81:300.02:060.27:226:47Full Moon13Fri
14Sat8:476.49:085.62:140.02:540.37:236:46Full Moon14Sat
15Sun9:316.39:515.42:570.13:400.57:236:44Full Moon15Sun
16Mon10:136.110:345.13:380.34:240.77:246:43Waning Gibbous16Mon
17Tue10:565.911:184.94:190.55:071.07:256:42Waning Gibbous17Tue
18Wed11:395.64:590.85:511.27:266:41Waning Gibbous18Wed
19Thu12:044.712:255.45:421.06:381.47:266:40Third Quarter19Thu
20Fri12:544.61:155.26:301.27:291.57:276:39Third Quarter20Fri
21Sat1:474.52:075.17:241.38:201.67:286:38Third Quarter21Sat
22Sun2:414.52:595.18:211.49:101.57:296:37Third Quarter22Sun
23Mon3:354.73:515.19:181.39:581.37:306:35Third Quarter23Mon
24Tue4:294.84:425.110:141.210:431.17:306:34Waning Crescent24Tue
25Wed5:205.15:305.211:081.011:270.97:316:33Waning Crescent25Wed
26Thu6:075.46:165.311:590.87:326:32Waning Crescent26Thu
27Fri6:515.76:595.312:100.712:480.67:336:31New Moon27Fri
28Sat7:325.97:415.312:520.41:360.57:346:30New Moon28Sat
29Sun8:146.18:235.31:360.22:240.47:356:29New Moon29Sun
30Mon8:586.29:095.32:200.13:120.37:356:28New Moon30Mon
31Tue9:456.29:585.23:070.14:010.37:366:28Waxing Crescent31Tue
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 5:58 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 spring phase. Tonight's moon is 100% 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 Full Moon (100% 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