Tides Today & Tomorrow in South Dewees Island, SC

TIDE TIMES for Thursday, June 25, 2026
The tide is currently falling in South Dewees Island, SC.
Next low tide : in 3m at 10:59 am (0.2 ft)
Next high tide : 5:53 pm (5.2 ft)
Sunset today : 8:30 pm
Sunrise tomorrow : 6:12 am
Moon phase : Waxing Gibbous (84% illuminated)
Tide Station Location : Station #8665111
Common Questions About Tides

South Dewees Island, SC Tides - Oct 2005

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat7:155.37:285.612:501.01:010.87:137:03New Moon1Sat
2Sun7:555.58:045.61:260.91:440.77:137:02New Moon2Sun
3Mon8:315.68:385.52:000.72:250.77:147:01New Moon3Mon
4Tue9:055.79:125.42:330.63:070.77:156:59New Moon4Tue
5Wed9:395.89:465.23:080.63:480.87:166:58Waxing Crescent5Wed
6Thu10:155.810:255.13:450.64:320.97:166:57Waxing Crescent6Thu
7Fri10:565.811:084.94:250.65:191.07:176:55Waxing Crescent7Fri
8Sat11:455.85:100.76:121.17:186:54Waxing Crescent8Sat
9Sun12:014.812:465.76:020.77:131.27:186:53First Quarter9Sun
10Mon1:034.71:575.77:050.88:181.27:196:52First Quarter10Mon
11Tue2:144.73:085.78:150.89:221.07:206:50First Quarter11Tue
12Wed3:274.94:175.89:260.710:230.87:216:49Waxing Gibbous12Wed
13Thu4:375.25:206.010:340.511:200.57:216:48Waxing Gibbous13Thu
14Fri5:425.66:176.111:380.37:226:47Waxing Gibbous14Fri
15Sat6:396.07:086.112:120.212:370.17:236:45Waxing Gibbous15Sat
16Sun7:316.37:566.11:020.01:320.07:246:44Full Moon16Sun
17Mon8:206.58:435.91:48-0.22:240.07:246:43Full Moon17Mon
18Tue9:086.59:295.62:34-0.13:140.27:256:42Full Moon18Tue
19Wed9:546.410:155.43:180.04:020.47:266:41Waning Gibbous19Wed
20Thu10:406.211:015.14:010.24:490.67:276:40Waning Gibbous20Thu
21Fri11:255.911:494.84:440.55:370.97:276:39Waning Gibbous21Fri
22Sat12:135.65:280.86:271.27:286:37Waning Gibbous22Sat
23Sun12:394.61:045.46:161.17:211.47:296:36Third Quarter23Sun
24Mon1:334.51:575.27:101.38:161.57:306:35Third Quarter24Mon
25Tue2:294.52:515.18:081.49:091.57:316:34Third Quarter25Tue
26Wed3:244.53:445.19:061.49:581.47:316:33Third Quarter26Wed
27Thu4:184.64:355.110:021.310:431.37:326:32Waning Crescent27Thu
28Fri5:114.95:245.210:551.111:251.17:336:31Waning Crescent28Fri
29Sat5:595.16:095.211:451.07:346:30Waning Crescent29Sat
30Sun5:425.45:505.312:050.911:420.76:355:29Waning Crescent30Sun
31Mon6:225.66:295.212:180.76:365:28New Moon31Mon
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 2:26 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 84% 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 Waxing Gibbous (84% 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