Tides Today & Tomorrow in South Dewees Island, SC

TIDE TIMES for Wednesday, July 15, 2026
The tide is currently rising in South Dewees Island, SC.
Next low tide (tomorrow) : 3:58 am (-0.4 ft)
Next high tide : in 4h 02m at 9:52 pm (6.1 ft)
Sunset today : 8:28 pm
Sunrise tomorrow : 6:21 am
Moon phase : New Moon (2% illuminated)
Tide Station Location : Station #8665111
Common Questions About Tides

South Dewees Island, SC Tides - Oct 2070

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed6:165.86:366.012:030.27:137:03Waning Crescent1Wed
2Thu7:076.07:236.012:360.312:560.17:147:02New Moon2Thu
3Fri7:546.18:065.91:220.21:460.17:147:00New Moon3Fri
4Sat8:386.18:485.82:060.22:330.27:156:59New Moon4Sat
5Sun9:216.19:285.62:470.33:170.47:166:58New Moon5Sun
6Mon10:026.010:085.43:260.44:000.57:166:56Waxing Crescent6Mon
7Tue10:425.810:485.24:030.64:410.87:176:55Waxing Crescent7Tue
8Wed11:225.611:295.04:390.85:221.07:186:54Waxing Crescent8Wed
9Thu12:045.45:161.06:051.27:196:53Waxing Crescent9Thu
10Fri12:134.812:505.35:561.16:521.47:196:51First Quarter10Fri
11Sat1:014.71:405.26:431.37:431.47:206:50First Quarter11Sat
12Sun1:534.72:325.27:361.38:351.47:216:49First Quarter12Sun
13Mon2:474.73:245.28:341.39:261.37:216:48First Quarter13Mon
14Tue3:414.84:175.39:321.210:171.17:226:46Waxing Gibbous14Tue
15Wed4:365.15:105.410:301.011:060.87:236:45Waxing Gibbous15Wed
16Thu5:295.35:595.611:260.811:540.67:246:44Waxing Gibbous16Thu
17Fri6:195.76:465.712:190.57:246:43Waxing Gibbous17Fri
18Sat7:056.07:315.812:400.31:100.37:256:42Full Moon18Sat
19Sun7:516.38:175.81:270.02:010.27:266:41Full Moon19Sun
20Mon8:396.59:055.82:14-0.22:520.17:276:39Full Moon20Mon
21Tue9:296.59:565.73:02-0.33:430.17:286:38Waning Gibbous21Tue
22Wed10:226.510:515.63:51-0.34:350.17:286:37Waning Gibbous22Wed
23Thu11:186.411:505.44:42-0.25:300.37:296:36Waning Gibbous23Thu
24Fri12:186.25:370.06:280.57:306:35Waning Gibbous24Fri
25Sat12:545.31:226.06:370.27:300.67:316:34Third Quarter25Sat
26Sun1:595.22:265.97:420.48:330.67:326:33Third Quarter26Sun
27Mon3:035.33:275.88:480.59:330.67:326:32Third Quarter27Mon
28Tue4:065.44:265.79:510.510:290.57:336:31Waning Crescent28Tue
29Wed5:055.65:225.610:520.411:210.47:346:30Waning Crescent29Wed
30Thu5:595.86:125.611:470.47:356:29Waning Crescent30Thu
31Fri6:485.96:575.512:100.312:390.37:366:28Waning Crescent31Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8665111)

Common Questions About South Dewees Island, SC Tides

Show All
What time does the tide turn (slack tide) in South Dewees Island, SC today?

Slack tide in South Dewees Island, SC is approximately 12:55 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 2% 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 (2% 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