Tides Today & Tomorrow in South Dewees Island, SC

TIDE TIMES for Monday, June 22, 2026
The tide is currently rising in South Dewees Island, SC.
Next low tide (tomorrow) : 9:26 am (0.1 ft)
Next high tide (tomorrow) : in 5h 46m at 3:23 am (4.5 ft)
Sunset today : 8:30 pm
Sunrise tomorrow : 6:11 am
Moon phase : First Quarter (58% illuminated)
Tide Station Location : Station #8665111
Common Questions About Tides

South Dewees Island, SC Tides - Aug 2009

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat4:544.25:485.210:500.511:490.86:328:17Waxing Gibbous1Sat
2Sun5:474.26:345.311:400.56:338:16Waxing Gibbous2Sun
3Mon6:364.37:185.412:360.712:260.46:348:15Waxing Gibbous3Mon
4Tue7:214.47:585.41:190.61:100.46:348:14Full Moon4Tue
5Wed8:044.58:365.41:590.51:520.46:358:14Full Moon5Wed
6Thu8:454.69:135.42:360.42:320.46:368:13Full Moon6Thu
7Fri9:234.79:465.23:110.43:110.46:378:12Full Moon7Fri
8Sat9:594.710:175.13:440.43:500.56:378:11Waning Gibbous8Sat
9Sun10:334.810:485.04:170.34:290.66:388:10Waning Gibbous9Sun
10Mon11:094.911:224.84:510.35:120.76:398:09Waning Gibbous10Mon
11Tue11:505.15:290.36:000.96:398:08Waning Gibbous11Tue
12Wed12:034.712:385.26:130.36:561.06:408:07Third Quarter12Wed
13Thu12:534.51:355.37:050.38:001.06:418:06Third Quarter13Thu
14Fri1:524.52:395.48:030.29:071.06:418:05Third Quarter14Fri
15Sat2:594.43:475.69:070.210:130.86:428:04Waning Crescent15Sat
16Sun4:114.54:585.810:130.011:180.66:438:03Waning Crescent16Sun
17Mon5:234.76:046.011:18-0.26:438:01Waning Crescent17Mon
18Tue6:305.07:036.212:170.312:21-0.36:448:00Waning Crescent18Tue
19Wed7:295.37:576.31:120.01:19-0.56:457:59New Moon19Wed
20Thu8:265.68:496.32:04-0.22:16-0.66:457:58New Moon20Thu
21Fri9:215.89:396.12:53-0.43:10-0.56:467:57New Moon21Fri
22Sat10:145.910:275.93:40-0.44:03-0.36:477:56Waxing Crescent22Sat
23Sun11:065.911:155.54:25-0.34:540.06:477:55Waxing Crescent23Sun
24Mon11:575.85:10-0.15:470.36:487:53Waxing Crescent24Mon
25Tue12:025.212:495.65:560.26:410.76:497:52First Quarter25Tue
26Wed12:514.91:425.56:440.57:380.96:497:51First Quarter26Wed
27Thu1:424.62:345.37:360.78:361.16:507:50First Quarter27Thu
28Fri2:344.53:285.28:300.99:321.26:517:48First Quarter28Fri
29Sat3:284.44:215.29:240.910:251.26:517:47Waxing Gibbous29Sat
30Sun4:234.45:145.310:180.911:161.16:527:46Waxing Gibbous30Sun
31Mon5:174.56:035.411:100.96:537:45Waxing 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 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 neap phase. Tonight's moon is 58% 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 minimum.

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 (58% illuminated). This places South Dewees Island, SC in a neap tide cycle, so tidal ranges are near their weekly minimum 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