32.8333’ N, 79.7267’ W

South Dewees Island, SC

76°
H 83°
L 74°
ENE
2mph
High tide
9:50 am

Tides Today & Tomorrow in South Dewees Island, SC

TIDE TIMES for Sunday, August 30, 2026
The tide is currently rising in South Dewees Island, SC.
Next low tide : 3:54 pm (0.4 ft)
Next high tide : in 4h 18m at 9:50 am (5.4 ft)
Sunset today : 7:46 pm
Sunrise tomorrow : 6:52 am
Moon phase : Waning Gibbous (93% illuminated)
Tide Station Location : Station #8665111
Common Questions About Tides

South Dewees Island, SC Tides - Sep 1913

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon7:535.88:136.31:29-0.21:47-0.45:536:44New Moon1Mon
2Tue8:486.19:046.12:17-0.42:41-0.45:536:43Waxing Crescent2Tue
3Wed9:426.29:555.93:04-0.43:35-0.25:546:42Waxing Crescent3Wed
4Thu10:376.210:465.53:51-0.34:300.15:556:40Waxing Crescent4Thu
5Fri11:336.111:415.14:400.05:280.45:556:39Waxing Crescent5Fri
6Sat12:325.95:320.26:300.75:566:38First Quarter6Sat
7Sun12:384.81:325.76:290.57:330.95:576:36First Quarter7Sun
8Mon1:364.62:315.67:300.78:331.15:576:35First Quarter8Mon
9Tue2:354.63:305.58:300.89:311.15:586:34Waxing Gibbous9Tue
10Wed3:344.64:265.59:290.910:241.05:586:32Waxing Gibbous10Wed
11Thu4:304.75:155.610:240.811:120.95:596:31Waxing Gibbous11Thu
12Fri5:214.85:585.611:140.811:540.86:006:30Waxing Gibbous12Fri
13Sat6:065.06:375.612:000.76:006:28Full Moon13Sat
14Sun6:475.27:145.612:340.712:420.76:016:27Full Moon14Sun
15Mon7:265.37:505.51:100.71:230.76:026:26Full Moon15Mon
16Tue8:035.48:245.41:430.72:010.86:026:24Full Moon16Tue
17Wed8:385.48:575.22:150.72:380.96:036:23Waning Gibbous17Wed
18Thu9:105.49:295.02:460.73:151.06:046:22Waning Gibbous18Thu
19Fri9:425.410:004.83:180.83:531.26:046:20Waning Gibbous19Fri
20Sat10:175.410:364.63:530.84:341.36:056:19Waning Gibbous20Sat
21Sun10:595.411:204.54:330.95:231.56:066:18Third Quarter21Sun
22Mon11:515.45:210.96:211.56:066:16Third Quarter22Mon
23Tue12:164.512:545.56:190.97:251.56:076:15Third Quarter23Tue
24Wed1:214.52:015.67:240.98:291.36:086:13Third Quarter24Wed
25Thu2:324.63:105.78:310.79:311.16:086:12Waning Crescent25Thu
26Fri3:424.94:166.09:380.510:290.76:096:11Waning Crescent26Fri
27Sat4:485.35:156.210:410.211:220.36:106:09Waning Crescent27Sat
28Sun5:465.86:086.311:400.06:106:08New Moon28Sun
29Mon6:406.26:596.412:120.012:37-0.26:116:07New Moon29Mon
30Tue7:336.57:496.21:01-0.21:32-0.36:126:05New Moon30Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8665111)

Common Questions About South Dewees Island, SC Tides

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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 93% 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 (93% 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