Tides Today & Tomorrow in South Dewees Island, SC

TIDE TIMES for Tuesday, June 23, 2026
The tide is currently rising in South Dewees Island, SC.
Next low tide : 9:26 am (0.1 ft)
Next high tide : in 1h 10m at 3:23 am (4.5 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 - Apr 2009

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed12:355.41:144.37:020.37:040.17:067:39First Quarter1Wed
2Thu1:435.22:254.38:070.48:130.27:047:39First Quarter2Thu
3Fri2:545.23:364.49:130.49:230.27:037:40First Quarter3Fri
4Sat4:045.14:444.710:150.210:310.07:027:41Waxing Gibbous4Sat
5Sun5:095.25:475.111:130.011:33-0.17:017:41Waxing Gibbous5Sun
6Mon6:075.36:415.412:05-0.26:597:42Waxing Gibbous6Mon
7Tue6:585.37:305.712:31-0.312:53-0.36:587:43Waxing Gibbous7Tue
8Wed7:435.28:155.81:23-0.41:38-0.46:577:44Full Moon8Wed
9Thu8:265.18:585.92:12-0.42:20-0.46:557:44Full Moon9Thu
10Fri9:085.09:395.82:58-0.43:00-0.36:547:45Full Moon10Fri
11Sat9:484.810:195.63:42-0.23:38-0.16:537:46Waning Gibbous11Sat
12Sun10:284.610:585.44:240.04:150.26:527:46Waning Gibbous12Sun
13Mon11:094.411:385.15:060.34:520.46:517:47Waning Gibbous13Mon
14Tue11:524.25:480.65:310.76:497:48Waning Gibbous14Tue
15Wed12:214.912:394.16:330.86:150.96:487:49Third Quarter15Wed
16Thu1:104.71:324.07:220.97:081.06:477:49Third Quarter16Thu
17Fri2:044.52:274.08:151.08:091.16:467:50Third Quarter17Fri
18Sat2:594.53:244.19:071.09:111.16:457:51Third Quarter18Sat
19Sun3:554.54:204.39:570.810:120.96:437:52Waning Crescent19Sun
20Mon4:504.55:154.610:450.611:090.76:427:52Waning Crescent20Mon
21Tue5:414.66:045.011:310.46:417:53Waning Crescent21Tue
22Wed6:284.76:495.312:030.512:150.16:407:54Waning Crescent22Wed
23Thu7:124.87:315.612:530.212:59-0.16:397:54New Moon23Thu
24Fri7:554.88:145.91:420.01:43-0.36:387:55New Moon24Fri
25Sat8:394.88:586.02:30-0.12:28-0.46:377:56New Moon25Sat
26Sun9:264.89:466.13:18-0.23:15-0.46:367:57New Moon26Sun
27Mon10:164.710:376.04:07-0.24:04-0.46:357:57Waxing Crescent27Mon
28Tue11:114.611:335.84:58-0.14:56-0.36:347:58Waxing Crescent28Tue
29Wed12:124.55:530.15:53-0.16:337:59Waxing Crescent29Wed
30Thu12:345.61:174.56:520.26:570.16:328:00First Quarter30Thu
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 6:24 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