Tides Today & Tomorrow in South Dewees Island, SC

TIDE TIMES for Sunday, July 5, 2026
The tide is currently falling in South Dewees Island, SC.
Next low tide : in 3h 05m at 6:00 pm (0.6 ft)
Next high tide (tomorrow) : 12:19 am (4.8 ft)
Sunset today : 8:30 pm
Sunrise tomorrow : 6:16 am
Moon phase : Waning Gibbous (72% illuminated)
Tide Station Location : Station #8665111
Common Questions About Tides

South Dewees Island, SC Tides - Feb 1993

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon2:024.42:313.78:270.68:300.07:135:51First Quarter1Mon
2Tue3:084.63:383.89:310.49:33-0.27:125:52Waxing Gibbous2Tue
3Wed4:154.84:434.110:310.210:34-0.57:125:53Waxing Gibbous3Wed
4Thu5:165.15:424.411:26-0.211:33-0.87:115:54Waxing Gibbous4Thu
5Fri6:105.56:364.812:18-0.57:105:55Full Moon5Fri
6Sat7:015.77:285.112:28-1.11:08-0.87:095:56Full Moon6Sat
7Sun7:525.88:215.31:22-1.31:56-1.17:095:57Full Moon7Sun
8Mon8:415.79:135.52:15-1.32:44-1.27:085:58Waning Gibbous8Mon
9Tue9:315.510:065.53:07-1.33:31-1.17:075:58Waning Gibbous9Tue
10Wed10:225.211:015.44:00-1.04:19-1.07:065:59Waning Gibbous10Wed
11Thu11:144.911:595.24:55-0.75:10-0.77:056:00Waning Gibbous11Thu
12Fri12:104.55:55-0.46:06-0.47:046:01Third Quarter12Fri
13Sat1:005.01:094.26:58-0.17:06-0.27:036:02Third Quarter13Sat
14Sun2:024.92:104.08:020.18:080.07:026:03Third Quarter14Sun
15Mon3:054.83:134.09:040.29:100.07:016:04Waning Crescent15Mon
16Tue4:074.74:144.010:020.210:090.07:006:05Waning Crescent16Tue
17Wed5:034.85:094.210:550.111:03-0.16:596:06Waning Crescent17Wed
18Thu5:504.95:574.411:420.011:51-0.16:586:06Waning Crescent18Thu
19Fri6:334.96:404.512:25-0.16:576:07New Moon19Fri
20Sat7:115.07:204.712:35-0.21:04-0.26:566:08New Moon20Sat
21Sun7:484.97:584.71:16-0.21:40-0.26:556:09New Moon21Sun
22Mon8:234.98:334.81:54-0.22:14-0.26:546:10New Moon22Mon
23Tue8:574.79:074.82:30-0.12:45-0.26:536:11Waxing Crescent23Tue
24Wed9:294.59:374.73:050.03:16-0.16:526:12Waxing Crescent24Wed
25Thu10:004.410:084.73:400.13:480.06:516:12Waxing Crescent25Thu
26Fri10:314.210:434.74:170.34:230.16:496:13Waxing Crescent26Fri
27Sat11:074.011:254.64:590.45:050.16:486:14First Quarter27Sat
28Sun11:533.95:480.65:550.26:476:15First Quarter28Sun
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 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 transitional phase. Tonight's moon is 72% 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 shifting between spring and neap.

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 (72% illuminated). This places South Dewees Island, SC in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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