Tides Today & Tomorrow in South Dewees Island, SC

TIDE TIMES for Monday, July 13, 2026
The tide is currently rising in South Dewees Island, SC.
Next low tide : 1:15 pm (-0.7 ft)
Next high tide : in 1h 22m at 7:26 am (4.6 ft)
Sunset today : 8:28 pm
Sunrise tomorrow : 6:20 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #8665111
Common Questions About Tides

South Dewees Island, SC Tides - Jan 2069

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue1:455.02:104.57:540.18:11-0.57:215:24First Quarter1Tue
2Wed2:515.13:164.59:010.09:12-0.57:215:24Waxing Gibbous2Wed
3Thu3:575.24:214.510:05-0.110:11-0.67:215:25Waxing Gibbous3Thu
4Fri5:005.45:214.511:05-0.211:08-0.77:215:26Waxing Gibbous4Fri
5Sat5:565.56:164.612:00-0.47:215:27Waxing Gibbous5Sat
6Sun6:465.67:064.712:02-0.812:51-0.57:215:27Full Moon6Sun
7Mon7:335.57:544.712:53-0.81:38-0.57:225:28Full Moon7Mon
8Tue8:175.48:414.71:41-0.82:22-0.57:225:29Full Moon8Tue
9Wed8:595.39:254.62:26-0.63:04-0.47:215:30Waning Gibbous9Wed
10Thu9:395.010:074.53:09-0.43:42-0.27:215:31Waning Gibbous10Thu
11Fri10:174.810:504.43:51-0.24:19-0.17:215:32Waning Gibbous11Fri
12Sat10:564.611:334.34:340.14:560.17:215:33Waning Gibbous12Sat
13Sun11:374.35:190.35:350.37:215:34Third Quarter13Sun
14Mon12:194.212:224.16:080.56:180.37:215:34Third Quarter14Mon
15Tue1:084.21:103.97:020.67:050.47:215:35Third Quarter15Tue
16Wed2:004.22:023.87:580.77:560.47:205:36Third Quarter16Wed
17Thu2:544.32:583.88:550.68:500.37:205:37Waning Crescent17Thu
18Fri3:514.43:553.99:510.59:450.17:205:38Waning Crescent18Fri
19Sat4:464.64:514.010:440.310:39-0.17:195:39Waning Crescent19Sat
20Sun5:354.95:414.211:340.011:31-0.47:195:40Waning Crescent20Sun
21Mon6:215.16:284.412:20-0.37:195:41New Moon21Mon
22Tue7:055.37:144.612:20-0.61:06-0.57:185:42New Moon22Tue
23Wed7:495.58:004.81:09-0.81:50-0.77:185:43New Moon23Wed
24Thu8:335.58:485.01:58-1.02:35-0.97:175:44New Moon24Thu
25Fri9:195.49:375.12:47-1.03:20-1.07:175:45Waxing Crescent25Fri
26Sat10:065.310:295.13:38-0.94:07-0.97:165:46Waxing Crescent26Sat
27Sun10:575.011:255.14:31-0.74:56-0.87:165:47Waxing Crescent27Sun
28Mon11:534.75:29-0.45:50-0.77:155:48First Quarter28Mon
29Tue12:265.012:534.56:33-0.26:49-0.67:155:49First Quarter29Tue
30Wed1:314.91:574.37:400.07:51-0.57:145:50First Quarter30Wed
31Thu2:374.93:034.28:470.08:54-0.47:135:50Waxing Gibbous31Thu
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 10:20 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 1% 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 New Moon (1% 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