Tides Today & Tomorrow in South Dewees Island, SC

TIDE TIMES for Wednesday, August 5, 2026
The tide is currently falling in South Dewees Island, SC.
Next low tide : in 1h 16m at 7:43 pm (0.8 ft)
Next high tide (tomorrow) : 1:39 am (4.5 ft)
Sunset today : 8:14 pm
Sunrise tomorrow : 6:35 am
Moon phase : Third Quarter (55% illuminated)
Tide Station Location : Station #8665111
Common Questions About Tides

South Dewees Island, SC Tides - Jul 1953

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed12:054.95:40-0.45:54-0.16:148:31Waning Gibbous1Wed
2Thu12:285.41:045.16:31-0.46:560.16:148:31Third Quarter2Thu
3Fri1:235.12:045.27:24-0.48:010.36:158:31Third Quarter3Fri
4Sat2:194.93:035.48:19-0.49:070.36:158:30Third Quarter4Sat
5Sun3:174.64:035.59:15-0.410:110.46:158:30Waning Crescent5Sun
6Mon4:174.55:035.610:11-0.311:130.36:168:30Waning Crescent6Mon
7Tue5:184.46:015.611:07-0.36:168:30Waning Crescent7Tue
8Wed6:164.36:535.712:100.212:02-0.36:178:30Waning Crescent8Wed
9Thu7:094.47:425.71:040.212:54-0.26:178:30New Moon9Thu
10Fri8:004.48:275.61:530.11:44-0.26:188:29New Moon10Fri
11Sat8:484.49:105.52:390.12:31-0.16:198:29New Moon11Sat
12Sun9:344.49:515.33:220.23:160.16:198:29New Moon12Sun
13Mon10:194.410:295.24:010.23:580.26:208:28Waxing Crescent13Mon
14Tue11:024.411:065.04:380.34:390.46:208:28Waxing Crescent14Tue
15Wed11:454.411:444.85:120.45:210.66:218:28Waxing Crescent15Wed
16Thu12:284.45:460.56:050.86:218:27Waxing Crescent16Thu
17Fri12:224.61:124.46:220.56:541.06:228:27First Quarter17Fri
18Sat1:044.41:574.57:010.67:481.16:238:26First Quarter18Sat
19Sun1:494.22:444.67:440.68:441.16:238:26First Quarter19Sun
20Mon2:384.13:344.88:330.59:411.06:248:25First Quarter20Mon
21Tue3:304.04:294.99:250.410:390.96:258:25Waxing Gibbous21Tue
22Wed4:284.05:255.210:210.311:340.76:258:24Waxing Gibbous22Wed
23Thu5:274.16:205.411:190.16:268:24Waxing Gibbous23Thu
24Fri6:244.37:105.712:280.512:16-0.16:278:23Waxing Gibbous24Fri
25Sat7:184.68:005.91:180.21:11-0.36:278:22Full Moon25Sat
26Sun8:104.88:496.02:07-0.12:05-0.46:288:22Full Moon26Sun
27Mon9:045.09:386.02:55-0.32:59-0.56:298:21Full Moon27Mon
28Tue9:595.210:285.93:42-0.53:52-0.56:298:20Waning Gibbous28Tue
29Wed10:545.411:185.74:29-0.64:46-0.36:308:20Waning Gibbous29Wed
30Thu11:505.55:16-0.65:42-0.16:318:19Waning Gibbous30Thu
31Fri12:105.412:475.66:06-0.56:430.26:318:18Third Quarter31Fri
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 10:41 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 neap phase. Tonight's moon is 55% 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 minimum.

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 Third Quarter (55% illuminated). This places South Dewees Island, SC in a neap tide cycle, so tidal ranges are near their weekly minimum 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