Tides Today & Tomorrow in South Dewees Island, SC

TIDE TIMES for Tuesday, June 23, 2026
The tide is currently falling in South Dewees Island, SC.
Next low tide : in 4h 34m at 10:11 pm (0.6 ft)
Next high tide (tomorrow) : 4:12 am (4.3 ft)
Sunset today : 8:30 pm
Sunrise tomorrow : 6:11 am
Moon phase : First Quarter (67% illuminated)
Tide Station Location : Station #8665111
Common Questions About Tides

South Dewees Island, SC Tides - Mar 2008

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat2:224.22:343.68:350.98:210.76:456:16Third Quarter1Sat
2Sun3:254.33:363.79:320.89:230.56:446:17Waning Crescent2Sun
3Mon4:254.54:353.910:250.610:220.36:436:17Waning Crescent3Mon
4Tue5:184.75:274.311:130.311:160.06:426:18Waning Crescent4Tue
5Wed6:035.06:134.611:570.06:406:19Waning Crescent5Wed
6Thu6:455.16:564.912:06-0.212:39-0.26:396:20New Moon6Thu
7Fri7:265.27:395.212:55-0.51:21-0.56:386:21New Moon7Fri
8Sat8:075.28:225.51:43-0.62:03-0.76:376:21New Moon8Sat
9Sun9:495.110:085.63:31-0.63:45-0.77:357:22Waxing Crescent9Sun
10Mon10:344.910:565.64:19-0.54:29-0.77:347:23Waxing Crescent10Mon
11Tue11:234.711:495.55:10-0.35:17-0.57:337:24Waxing Crescent11Tue
12Wed12:184.46:06-0.16:10-0.37:327:24Waxing Crescent12Wed
13Thu12:485.31:224.27:090.27:11-0.17:307:25First Quarter13Thu
14Fri1:565.12:314.18:170.48:180.17:297:26First Quarter14Fri
15Sat3:085.03:424.19:250.49:280.17:287:27First Quarter15Sat
16Sun4:205.04:524.310:290.310:350.07:267:27Waxing Gibbous16Sun
17Mon5:265.05:544.611:280.211:37-0.17:257:28Waxing Gibbous17Mon
18Tue6:225.16:484.912:190.07:247:29Waxing Gibbous18Tue
19Wed7:105.27:355.112:32-0.21:06-0.17:227:30Waxing Gibbous19Wed
20Thu7:525.28:185.31:23-0.31:48-0.27:217:30Full Moon20Thu
21Fri8:305.18:575.42:09-0.42:26-0.27:207:31Full Moon21Fri
22Sat9:075.09:355.42:52-0.33:02-0.27:197:32Full Moon22Sat
23Sun9:434.810:115.33:33-0.23:35-0.17:177:32Full Moon23Sun
24Mon10:194.610:465.24:120.04:070.17:167:33Waning Gibbous24Mon
25Tue10:554.411:205.04:500.24:390.37:157:34Waning Gibbous25Tue
26Wed11:324.211:574.85:280.55:120.57:137:35Waning Gibbous26Wed
27Thu12:134.06:100.75:500.77:127:35Waning Gibbous27Thu
28Fri12:404.61:003.96:570.96:370.87:117:36Third Quarter28Fri
29Sat1:314.51:533.87:501.07:350.97:097:37Third Quarter29Sat
30Sun2:304.52:513.98:471.08:390.97:087:37Third Quarter30Sun
31Mon3:324.53:534.09:440.99:440.77:077:38Third Quarter31Mon
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 1:11 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 67% 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 First Quarter (67% 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