Tides Today & Tomorrow in South Dewees Island, SC

TIDE TIMES for Sunday, June 28, 2026
The tide is currently rising in South Dewees Island, SC.
Next low tide : 1:09 pm (0.3 ft)
Next high tide : in 4h 33m at 7:23 am (4.1 ft)
Sunset today : 8:31 pm
Sunrise tomorrow : 6:13 am
Moon phase : Full Moon (98% illuminated)
Tide Station Location : Station #8665111
Common Questions About Tides

South Dewees Island, SC Tides - Nov 2001

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu7:315.87:525.21:030.41:390.66:365:28Full Moon1Thu
2Fri8:065.98:285.11:410.32:200.66:375:27Full Moon2Fri
3Sat8:435.99:074.92:200.33:030.66:385:26Waning Gibbous3Sat
4Sun9:245.99:494.83:010.33:480.76:395:25Waning Gibbous4Sun
5Mon10:105.810:404.73:470.44:370.86:405:24Waning Gibbous5Mon
6Tue11:055.811:404.74:370.45:320.86:415:23Waning Gibbous6Tue
7Wed12:085.75:360.56:340.86:425:23Third Quarter7Wed
8Thu12:494.71:155.66:420.67:370.76:435:22Third Quarter8Thu
9Fri1:594.92:225.67:500.58:380.56:445:21Third Quarter9Fri
10Sat3:065.13:265.78:570.49:360.36:445:20Waning Crescent10Sat
11Sun4:115.54:275.710:020.210:310.06:455:20Waning Crescent11Sun
12Mon5:095.95:235.711:020.011:23-0.26:465:19Waning Crescent12Mon
13Tue6:036.26:145.711:58-0.26:475:18New Moon13Tue
14Wed6:536.47:035.612:12-0.312:51-0.26:485:18New Moon14Wed
15Thu7:416.47:505.412:59-0.31:42-0.26:495:17New Moon15Thu
16Fri8:286.38:375.21:45-0.32:31-0.16:505:17New Moon16Fri
17Sat9:156.19:245.02:30-0.13:170.16:515:16Waxing Crescent17Sat
18Sun10:005.910:104.83:130.24:030.46:525:16Waxing Crescent18Sun
19Mon10:465.610:584.63:570.44:500.66:535:15Waxing Crescent19Mon
20Tue11:345.311:484.44:420.75:380.86:535:15Waxing Crescent20Tue
21Wed12:235.05:311.06:291.06:545:14First Quarter21Wed
22Thu12:414.41:144.96:251.17:201.06:555:14First Quarter22Thu
23Fri1:354.42:054.87:231.28:081.06:565:14First Quarter23Fri
24Sat2:284.42:564.78:211.28:550.96:575:13First Quarter24Sat
25Sun3:214.63:464.79:161.19:410.76:585:13Waxing Gibbous25Sun
26Mon4:134.84:364.810:100.910:240.56:595:13Waxing Gibbous26Mon
27Tue5:005.15:214.810:590.711:070.37:005:13Waxing Gibbous27Tue
28Wed5:445.36:044.811:470.511:480.17:015:12Waxing Gibbous28Wed
29Thu6:255.56:454.812:320.47:015:12Full Moon29Thu
30Fri7:045.77:264.812:300.01:170.27:025:12Full Moon30Fri
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 10:16 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 spring phase. Tonight's moon is 98% 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 Full Moon (98% 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