Tides Today & Tomorrow in South Dewees Island, SC

TIDE TIMES for Monday, August 10, 2026
The tide is currently falling in South Dewees Island, SC.
Next low tide : in 3h 47m at 12:04 pm (-0.3 ft)
Next high tide : 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 - Apr 1944

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat3:114.73:454.29:280.79:300.77:067:38First Quarter1Sat
2Sun4:074.64:424.310:230.710:280.67:057:39Waxing Gibbous2Sun
3Mon5:034.75:354.411:130.611:210.57:037:40Waxing Gibbous3Mon
4Tue5:544.76:244.611:590.57:027:41Waxing Gibbous4Tue
5Wed6:394.97:084.912:100.412:400.47:017:41Waxing Gibbous5Wed
6Thu7:214.97:485.012:550.21:170.37:007:42Waxing Gibbous6Thu
7Fri7:595.08:265.21:370.11:520.26:587:43Full Moon7Fri
8Sat8:364.99:015.22:180.02:260.16:577:43Full Moon8Sat
9Sun9:104.99:335.32:570.02:590.16:567:44Full Moon9Sun
10Mon9:444.810:045.33:360.03:330.16:557:45Full Moon10Mon
11Tue10:174.710:365.34:150.14:100.16:537:46Waning Gibbous11Tue
12Wed10:554.511:155.34:570.24:500.16:527:46Waning Gibbous12Wed
13Thu11:384.55:430.35:360.26:517:47Waning Gibbous13Thu
14Fri12:035.212:314.46:350.46:300.36:507:48Third Quarter14Fri
15Sat1:015.21:334.47:350.47:340.46:487:48Third Quarter15Sat
16Sun2:105.12:424.58:380.48:440.36:477:49Third Quarter16Sun
17Mon3:225.23:534.79:410.29:540.26:467:50Third Quarter17Mon
18Tue4:335.35:025.010:41-0.111:02-0.16:457:51Waning Crescent18Tue
19Wed5:385.46:055.411:39-0.36:447:51Waning Crescent19Wed
20Thu6:375.67:015.812:05-0.312:32-0.66:437:52Waning Crescent20Thu
21Fri7:305.67:546.11:03-0.61:23-0.86:417:53New Moon21Fri
22Sat8:215.68:446.21:57-0.72:11-0.86:407:53New Moon22Sat
23Sun9:105.59:326.22:50-0.72:59-0.86:397:54New Moon23Sun
24Mon10:005.210:206.13:40-0.63:45-0.66:387:55Waxing Crescent24Mon
25Tue10:485.011:075.84:29-0.44:30-0.36:377:56Waxing Crescent25Tue
26Wed11:374.711:555.55:18-0.15:160.06:367:56Waxing Crescent26Wed
27Thu12:284.56:070.26:040.46:357:57Waxing Crescent27Thu
28Fri12:445.21:214.37:000.56:560.76:347:58First Quarter28Fri
29Sat1:354.92:164.27:540.77:540.86:337:59First Quarter29Sat
30Sun2:284.73:104.28:480.88:520.96:327:59First Quarter30Sun
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 3:28 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