Tides Today & Tomorrow in South Dewees Island, SC

TIDE TIMES for Saturday, July 4, 2026
The tide is currently rising in South Dewees Island, SC.
Next low tide : 5:11 pm (0.5 ft)
Next high tide : in 6h 08m at 11:23 am (4.3 ft)
Sunset today : 8:30 pm
Sunrise tomorrow : 6:15 am
Moon phase : Waning Gibbous (81% illuminated)
Tide Station Location : Station #8665111
Common Questions About Tides

South Dewees Island, SC Tides - Aug 2055

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun3:094.94:065.69:11-0.210:020.36:328:17First Quarter1Sun
2Mon4:094.75:055.710:08-0.111:020.36:338:16Waxing Gibbous2Mon
3Tue5:084.76:015.711:05-0.111:580.26:348:16Waxing Gibbous3Tue
4Wed6:054.76:525.811:59-0.16:348:15Waxing Gibbous4Wed
5Thu6:574.77:395.812:500.212:500.06:358:14Full Moon5Thu
6Fri7:454.88:225.71:380.11:380.06:368:13Full Moon6Fri
7Sat8:304.89:035.62:230.12:230.16:378:12Full Moon7Sat
8Sun9:144.89:435.53:050.13:060.26:378:11Full Moon8Sun
9Mon9:564.810:215.43:430.23:460.46:388:10Waning Gibbous9Mon
10Tue10:374.810:595.24:200.34:250.66:398:09Waning Gibbous10Tue
11Wed11:174.811:365.04:550.45:040.76:398:08Waning Gibbous11Wed
12Thu11:574.75:290.55:450.96:408:07Waning Gibbous12Thu
13Fri12:144.812:384.76:060.66:301.16:418:06Third Quarter13Fri
14Sat12:554.61:234.86:470.77:221.26:418:05Third Quarter14Sat
15Sun1:394.52:104.97:330.78:181.26:428:04Third Quarter15Sun
16Mon2:284.43:015.08:230.69:161.26:438:03Third Quarter16Mon
17Tue3:224.43:575.29:180.510:151.06:438:02Waning Crescent17Tue
18Wed4:214.44:565.410:140.411:130.86:448:01Waning Crescent18Wed
19Thu5:214.65:535.711:130.26:457:59Waning Crescent19Thu
20Fri6:194.86:476.012:080.512:10-0.16:457:58Waning Crescent20Fri
21Sat7:135.17:396.21:000.21:05-0.36:467:57New Moon21Sat
22Sun8:075.48:306.31:510.02:00-0.56:477:56New Moon22Sun
23Mon9:015.69:216.32:40-0.32:54-0.56:477:55New Moon23Mon
24Tue9:565.810:136.23:29-0.43:47-0.56:487:54Waxing Crescent24Tue
25Wed10:525.911:066.04:17-0.54:42-0.46:497:52Waxing Crescent25Wed
26Thu11:485.95:07-0.45:38-0.16:497:51Waxing Crescent26Thu
27Fri12:005.812:475.95:58-0.26:370.16:507:50First Quarter27Fri
28Sat12:575.51:475.96:530.07:400.46:517:49First Quarter28Sat
29Sun1:555.22:475.87:510.18:430.56:517:47First Quarter29Sun
30Mon2:545.03:475.88:500.39:440.66:527:46First Quarter30Mon
31Tue3:534.94:465.89:490.410:430.66:537:45Waxing Gibbous31Tue
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 2:17 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 81% 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 Gibbous (81% 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