Tides Today & Tomorrow in South Dewees Island, SC

TIDE TIMES for Sunday, July 12, 2026
The tide is currently rising in South Dewees Island, SC.
Next low tide (tomorrow) : 1:20 am (-0.1 ft)
Next high tide : in 1h 08m at 7:03 pm (6.1 ft)
Sunset today : 8:29 pm
Sunrise tomorrow : 6:20 am
Moon phase : Waning Crescent (5% illuminated)
Tide Station Location : Station #8665111
Common Questions About Tides

South Dewees Island, SC Tides - May 2068

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue8:145.38:406.31:58-0.52:03-0.86:308:01New Moon1Tue
2Wed9:065.29:306.22:51-0.52:52-0.76:298:02New Moon2Wed
3Thu9:565.010:186.03:41-0.43:40-0.56:288:02Waxing Crescent3Thu
4Fri10:474.811:065.74:29-0.24:27-0.26:278:03Waxing Crescent4Fri
5Sat11:384.611:545.45:170.05:140.16:268:04Waxing Crescent5Sat
6Sun12:294.56:050.36:040.46:258:05Waxing Crescent6Sun
7Mon12:425.11:224.46:560.56:580.76:258:05First Quarter7Mon
8Tue1:324.82:164.47:470.77:560.96:248:06First Quarter8Tue
9Wed2:224.73:094.48:370.78:530.96:238:07First Quarter9Wed
10Thu3:134.54:014.59:250.79:490.96:228:08First Quarter10Thu
11Fri4:044.54:524.710:110.610:430.86:218:08Waxing Gibbous11Fri
12Sat4:554.55:414.910:550.511:340.76:218:09Waxing Gibbous12Sat
13Sun5:454.56:275.211:370.46:208:10Waxing Gibbous13Sun
14Mon6:314.57:095.412:220.512:180.36:198:10Waxing Gibbous14Mon
15Tue7:144.57:485.51:070.312:590.26:198:11Full Moon15Tue
16Wed7:554.58:265.61:500.21:390.06:188:12Full Moon16Wed
17Thu8:354.59:045.62:330.12:210.06:178:13Full Moon17Thu
18Fri9:154.59:435.63:150.03:03-0.16:178:13Full Moon18Fri
19Sat9:584.510:245.63:580.03:48-0.16:168:14Waning Gibbous19Sat
20Sun10:444.511:105.54:420.04:350.06:168:15Waning Gibbous20Sun
21Mon11:354.65:290.05:270.16:158:15Waning Gibbous21Mon
22Tue12:015.412:334.76:200.06:250.26:158:16Third Quarter22Tue
23Wed12:585.31:354.87:15-0.17:300.36:148:17Third Quarter23Wed
24Thu1:595.22:395.08:12-0.28:380.36:148:17Third Quarter24Thu
25Fri3:015.13:425.29:09-0.39:450.26:138:18Third Quarter25Fri
26Sat4:045.04:455.510:06-0.410:500.16:138:19Waning Crescent26Sat
27Sun5:064.95:455.811:02-0.511:51-0.16:128:19Waning Crescent27Sun
28Mon6:064.96:416.011:57-0.66:128:20Waning Crescent28Mon
29Tue7:014.97:326.112:49-0.212:49-0.66:128:20New Moon29Tue
30Wed7:534.98:216.11:42-0.31:40-0.66:118:21New Moon30Wed
31Thu8:444.89:096.02:33-0.32:29-0.56:118:22New Moon31Thu
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 10:11 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 5% 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 Crescent (5% 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