Tides Today & Tomorrow in South Dewees Island, SC

TIDE TIMES for Monday, August 10, 2026
The tide is currently rising in South Dewees Island, SC.
Next low tide (tomorrow) : 1:03 am (0.1 ft)
Next high tide : in 4h 32m at 6:53 pm (6.1 ft)
Sunset today : 8:09 pm
Sunrise tomorrow : 6:39 am
Moon phase : Waning Crescent (6% illuminated)
Tide Station Location : Station #8665111
Common Questions About Tides

South Dewees Island, SC Tides - Nov 1943

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon10:456.011:015.14:120.25:020.47:366:28Waxing Crescent1Mon
2Tue11:375.911:565.05:000.35:550.57:376:27Waxing Crescent2Tue
3Wed12:375.85:550.46:530.67:376:27First Quarter3Wed
4Thu12:595.01:435.76:560.57:560.67:386:26First Quarter4Thu
5Fri2:085.02:505.78:040.68:570.57:396:25First Quarter5Fri
6Sat3:165.13:545.79:130.59:570.37:406:24First Quarter6Sat
7Sun4:225.44:575.710:190.410:540.17:416:23Waxing Gibbous7Sun
8Mon5:255.75:545.811:220.211:48-0.17:426:23Waxing Gibbous8Mon
9Tue6:225.96:475.812:200.17:436:22Waxing Gibbous9Tue
10Wed7:136.27:365.712:38-0.21:140.07:446:21Full Moon10Wed
11Thu8:016.38:225.61:26-0.32:05-0.17:456:20Full Moon11Thu
12Fri8:466.39:075.42:12-0.32:530.07:456:20Full Moon12Fri
13Sat9:306.29:525.22:56-0.23:390.27:466:19Full Moon13Sat
14Sun10:136.010:375.03:390.04:230.47:476:18Waning Gibbous14Sun
15Mon10:555.711:214.84:200.35:060.67:486:18Waning Gibbous15Mon
16Tue11:385.55:010.55:500.87:496:17Waning Gibbous16Tue
17Wed12:084.612:225.25:450.86:351.07:506:17Waning Gibbous17Wed
18Thu12:574.51:105.16:321.07:241.17:516:16Third Quarter18Thu
19Fri1:494.42:004.97:251.18:131.17:526:16Third Quarter19Fri
20Sat2:424.42:514.98:211.19:021.17:536:15Third Quarter20Sat
21Sun3:354.53:434.89:181.19:501.07:546:15Third Quarter21Sun
22Mon4:284.74:354.910:131.010:360.87:556:14Waning Crescent22Mon
23Tue5:194.95:264.911:070.811:220.57:556:14Waning Crescent23Tue
24Wed6:075.26:135.011:590.67:566:14Waning Crescent24Wed
25Thu6:515.56:585.112:070.312:480.37:576:13Waning Crescent25Thu
26Fri7:335.77:415.112:510.11:350.17:586:13New Moon26Fri
27Sat8:155.98:255.11:36-0.12:230.07:596:13New Moon27Sat
28Sun8:596.09:115.12:21-0.33:11-0.18:006:13New Moon28Sun
29Mon9:466.010:005.03:08-0.33:59-0.28:016:12Waxing Crescent29Mon
30Tue10:376.010:545.03:57-0.34:49-0.18:026:12Waxing Crescent30Tue
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 9:58 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 6% 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 Waning Crescent (6% 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