Tides Today & Tomorrow in South Dewees Island, SC

TIDE TIMES for Friday, July 31, 2026
The tide is currently rising in South Dewees Island, SC.
Next low tide (tomorrow) : 4:06 am (0.2 ft)
Next high tide : in 33m at 10:03 pm (5.3 ft)
Sunset today : 8:18 pm
Sunrise tomorrow : 6:32 am
Moon phase : Waning Gibbous (96% illuminated)
Tide Station Location : Station #8665111
Common Questions About Tides

South Dewees Island, SC Tides - Jun 1961

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu10:174.810:505.94:10-0.54:08-0.56:118:21Waning Gibbous1Thu
2Fri11:144.811:465.85:01-0.55:02-0.36:118:22Waning Gibbous2Fri
3Sat12:154.85:55-0.46:00-0.26:108:23Waning Gibbous3Sat
4Sun12:455.61:184.86:51-0.37:030.06:108:23Third Quarter4Sun
5Mon1:465.42:214.97:49-0.38:100.16:108:24Third Quarter5Mon
6Tue2:465.33:225.18:47-0.39:160.26:108:24Third Quarter6Tue
7Wed3:445.14:225.39:43-0.410:190.16:108:25Waning Crescent7Wed
8Thu4:425.05:195.510:37-0.411:190.16:108:25Waning Crescent8Thu
9Fri5:384.96:125.611:28-0.46:108:26Waning Crescent9Fri
10Sat6:304.87:005.712:140.012:18-0.46:098:26Waning Crescent10Sat
11Sun7:184.77:455.71:06-0.11:04-0.46:098:26New Moon11Sun
12Mon8:034.78:275.71:54-0.11:49-0.36:098:27New Moon12Mon
13Tue8:484.69:075.62:39-0.12:32-0.26:098:27New Moon13Tue
14Wed9:324.59:475.53:220.03:130.06:108:28New Moon14Wed
15Thu10:154.410:255.34:020.13:530.16:108:28Waxing Crescent15Thu
16Fri10:594.311:045.14:400.34:320.36:108:28Waxing Crescent16Fri
17Sat11:424.211:434.95:170.45:120.56:108:29Waxing Crescent17Sat
18Sun12:274.25:550.55:560.76:108:29Waxing Crescent18Sun
19Mon12:234.81:134.26:340.56:440.86:108:29First Quarter19Mon
20Tue1:074.62:004.27:170.57:380.96:108:29First Quarter20Tue
21Wed1:534.52:484.48:030.58:350.86:118:30First Quarter21Wed
22Thu2:424.53:384.68:510.49:330.76:118:30First Quarter22Thu
23Fri3:344.44:304.99:410.210:310.66:118:30Waxing Gibbous23Fri
24Sat4:304.45:245.210:330.011:290.36:118:30Waxing Gibbous24Sat
25Sun5:274.56:165.511:27-0.26:128:30Waxing Gibbous25Sun
26Mon6:234.67:075.812:240.112:20-0.46:128:30Waxing Gibbous26Mon
27Tue7:174.77:586.01:18-0.21:14-0.66:128:31Full Moon27Tue
28Wed8:124.88:516.12:10-0.42:08-0.76:138:31Full Moon28Wed
29Thu9:084.99:456.13:02-0.63:02-0.76:138:31Full Moon29Thu
30Fri10:065.010:406.13:54-0.73:56-0.76:138:31Waning Gibbous30Fri
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 1:04 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 96% 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 Gibbous (96% 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