Tides Today & Tomorrow in South Dewees Island, SC

TIDE TIMES for Monday, August 10, 2026
The tide is currently rising in South Dewees Island, SC.
Next low tide : 12:04 pm (-0.3 ft)
Next high tide : in 5h 03m at 6:14 am (4.7 ft)
Sunset today : 8:09 pm
Sunrise tomorrow : 6:39 am
Moon phase : Waning Crescent (6% illuminated)
Tide Station Location : Station #8665111
Common Questions About Tides

South Dewees Island, SC Tides - Nov 1944

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed9:066.79:315.82:32-0.53:14-0.27:366:28Full Moon1Wed
2Thu9:586.610:235.63:21-0.44:05-0.17:376:27Waning Gibbous2Thu
3Fri10:486.411:145.34:09-0.24:560.27:386:26Waning Gibbous3Fri
4Sat11:406.14:570.15:470.57:396:25Waning Gibbous4Sat
5Sun12:075.012:325.85:470.46:410.87:406:24Waning Gibbous5Sun
6Mon1:024.81:255.56:400.77:371.07:416:23Third Quarter6Mon
7Tue1:584.72:185.37:381.08:331.17:426:23Third Quarter7Tue
8Wed2:534.73:115.18:361.19:251.17:436:22Third Quarter8Wed
9Thu3:474.74:025.19:331.110:141.07:436:21Third Quarter9Thu
10Fri4:404.84:525.110:271.010:590.97:446:21Waning Crescent10Fri
11Sat5:315.05:405.111:190.911:410.87:456:20Waning Crescent11Sat
12Sun6:175.26:245.112:070.87:466:19Waning Crescent12Sun
13Mon7:005.47:065.112:210.612:510.67:476:19Waning Crescent13Mon
14Tue7:395.67:455.112:580.51:340.57:486:18New Moon14Tue
15Wed8:175.78:235.01:350.42:160.47:496:17New Moon15Wed
16Thu8:535.78:594.92:120.32:570.47:506:17New Moon16Thu
17Fri9:285.79:364.82:490.33:380.47:516:16New Moon17Fri
18Sat10:045.710:154.83:290.34:190.47:526:16Waxing Crescent18Sat
19Sun10:435.610:584.74:110.35:040.57:536:15Waxing Crescent19Sun
20Mon11:305.611:494.74:560.35:520.57:536:15Waxing Crescent20Mon
21Tue12:255.55:480.46:470.57:546:15First Quarter21Tue
22Wed12:494.71:275.46:490.57:460.57:556:14First Quarter22Wed
23Thu1:554.82:325.47:560.58:460.37:566:14First Quarter23Thu
24Fri3:035.03:375.49:050.49:450.17:576:13First Quarter24Fri
25Sat4:105.24:405.410:120.310:42-0.17:586:13Waxing Gibbous25Sat
26Sun5:145.65:415.411:160.111:37-0.47:596:13Waxing Gibbous26Sun
27Mon6:135.96:375.512:17-0.18:006:13Waxing Gibbous27Mon
28Tue7:076.27:305.412:30-0.61:13-0.38:016:13Full Moon28Tue
29Wed7:586.38:205.41:20-0.72:06-0.48:016:12Full Moon29Wed
30Thu8:486.39:105.22:10-0.72:57-0.38:026:12Full Moon30Thu
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 9:09 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 6% 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 (6% 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