Tides Today & Tomorrow in South Dewees Island, SC

TIDE TIMES for Tuesday, August 4, 2026
The tide is currently falling in South Dewees Island, SC.
Next low tide : in 1h 07m at 6:39 pm (0.7 ft)
Next high tide (tomorrow) : 12:42 am (4.7 ft)
Sunset today : 8:15 pm
Sunrise tomorrow : 6:34 am
Moon phase : Third Quarter (66% illuminated)
Tide Station Location : Station #8665111
Common Questions About Tides

South Dewees Island, SC Tides - Dec 2096

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat8:426.49:085.02:02-0.82:56-0.37:045:12Waning Gibbous1Sat
2Sun9:386.210:074.92:55-0.63:49-0.27:055:12Waning Gibbous2Sun
3Mon10:365.911:064.73:49-0.44:430.07:055:12Waning Gibbous3Mon
4Tue11:345.64:45-0.15:400.27:065:12Waning Gibbous4Tue
5Wed12:084.612:315.35:450.26:380.47:075:12Third Quarter5Wed
6Thu1:094.61:275.06:490.47:340.47:085:12Third Quarter6Thu
7Fri2:074.62:204.87:520.58:270.47:095:12Third Quarter7Fri
8Sat3:034.73:124.68:520.69:170.47:095:12Waning Crescent8Sat
9Sun3:574.94:024.59:480.610:030.37:105:12Waning Crescent9Sun
10Mon4:475.04:494.510:400.510:460.37:115:13Waning Crescent10Mon
11Tue5:315.25:344.411:280.411:270.27:115:13Waning Crescent11Tue
12Wed6:135.36:164.412:130.37:125:13Waning Crescent12Wed
13Thu6:525.36:574.412:060.212:550.27:135:13New Moon13Thu
14Fri7:315.37:364.412:440.21:350.27:135:14New Moon14Fri
15Sat8:085.38:144.31:200.12:130.27:145:14New Moon15Sat
16Sun8:455.28:514.21:570.12:500.37:155:14New Moon16Sun
17Mon9:195.19:264.12:340.23:260.37:155:15Waxing Crescent17Mon
18Tue9:545.010:034.13:120.24:040.47:165:15Waxing Crescent18Tue
19Wed10:304.910:444.13:530.24:440.47:165:16Waxing Crescent19Wed
20Thu11:124.811:334.24:390.35:280.37:175:16Waxing Crescent20Thu
21Fri12:004.75:320.46:180.27:175:17First Quarter21Fri
22Sat12:294.412:554.76:340.47:120.17:185:17First Quarter22Sat
23Sun1:294.61:544.67:410.48:08-0.17:185:18First Quarter23Sun
24Mon2:334.92:574.58:480.39:05-0.37:195:18Waxing Gibbous24Mon
25Tue3:385.24:034.59:550.110:03-0.67:195:19Waxing Gibbous25Tue
26Wed4:425.55:064.610:58-0.211:01-0.87:195:19Waxing Gibbous26Wed
27Thu5:425.86:064.711:58-0.411:58-0.97:205:20Waxing Gibbous27Thu
28Fri6:396.07:024.712:54-0.67:205:21Full Moon28Fri
29Sat7:356.17:594.812:53-1.11:48-0.67:205:21Full Moon29Sat
30Sun8:306.08:554.71:47-1.12:40-0.67:205:22Full Moon30Sun
31Mon9:245.82:40-1.03:30-0.57:215:23Waning Gibbous31Mon
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 9:40 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 66% 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 Third Quarter (66% 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