Tides Today & Tomorrow in South Dewees Island, SC

TIDE TIMES for Thursday, June 25, 2026
The tide is currently falling in South Dewees Island, SC.
Next low tide : in 2h 39m at 11:55 pm (0.5 ft)
Next high tide (tomorrow) : 5:51 am (4.1 ft)
Sunset today : 8:30 pm
Sunrise tomorrow : 6:12 am
Moon phase : Waxing Gibbous (84% illuminated)
Tide Station Location : Station #8665111
Common Questions About Tides

South Dewees Island, SC Tides - Feb 2005

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:044.16:090.36:130.07:135:51Third Quarter1Tue
2Wed12:464.51:023.97:140.47:120.07:125:52Third Quarter2Wed
3Thu1:534.62:093.98:220.48:18-0.17:125:53Third Quarter3Thu
4Fri3:074.83:223.99:310.29:26-0.37:115:54Waning Crescent4Fri
5Sat4:235.14:364.110:360.010:34-0.57:105:55Waning Crescent5Sat
6Sun5:305.45:424.411:36-0.311:36-0.87:095:56Waning Crescent6Sun
7Mon6:295.66:414.712:31-0.67:085:57New Moon7Mon
8Tue7:235.87:364.912:35-1.01:22-0.97:085:58New Moon8Tue
9Wed8:155.88:295.11:30-1.22:11-1.07:075:59New Moon9Wed
10Thu9:045.79:215.22:23-1.22:57-1.07:065:59Waxing Crescent10Thu
11Fri9:515.510:115.23:15-1.03:42-0.97:056:00Waxing Crescent11Fri
12Sat10:375.111:005.14:05-0.74:27-0.77:046:01Waxing Crescent12Sat
13Sun11:244.711:504.94:57-0.35:12-0.47:036:02Waxing Crescent13Sun
14Mon12:124.35:520.16:00-0.17:026:03First Quarter14Mon
15Tue12:424.71:034.06:510.46:510.17:016:04First Quarter15Tue
16Wed1:354.51:563.87:510.67:450.37:006:05First Quarter16Wed
17Thu2:304.42:533.78:500.78:410.46:596:06First Quarter17Thu
18Fri3:284.43:523.79:470.79:370.46:586:07Waxing Gibbous18Fri
19Sat4:264.44:483.810:400.610:310.36:576:07Waxing Gibbous19Sat
20Sun5:184.65:384.011:270.511:200.16:566:08Waxing Gibbous20Sun
21Mon6:044.76:234.112:090.36:556:09Waxing Gibbous21Mon
22Tue6:454.87:044.312:050.012:470.26:546:10Full Moon22Tue
23Wed7:224.97:424.412:47-0.11:220.16:536:11Full Moon23Wed
24Thu7:574.98:184.51:27-0.21:550.06:526:12Full Moon24Thu
25Fri8:304.98:504.62:06-0.22:26-0.16:506:12Full Moon25Fri
26Sat9:014.89:214.72:45-0.22:58-0.16:496:13Waning Gibbous26Sat
27Sun9:324.69:544.83:25-0.13:32-0.16:486:14Waning Gibbous27Sun
28Mon10:084.510:344.94:070.04:10-0.16:476:15Waning Gibbous28Mon
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 2:53 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 84% 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 Waxing Gibbous (84% 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