Tides Today & Tomorrow in South Dewees Island, SC

TIDE TIMES for Tuesday, June 23, 2026
The tide is currently falling in South Dewees Island, SC.
Next low tide : in 3h 49m at 9:26 am (0.1 ft)
Next high tide : 4:16 pm (5.1 ft)
Sunset today : 8:30 pm
Sunrise tomorrow : 6:11 am
Moon phase : First Quarter (67% illuminated)
Tide Station Location : Station #8665111
Common Questions About Tides

South Dewees Island, SC Tides - Jan 2009

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu10:294.610:464.34:020.24:380.27:215:23Waxing Crescent1Thu
2Fri11:084.511:334.44:480.35:200.17:215:24First Quarter2Fri
3Sat11:544.35:410.46:080.17:215:25First Quarter3Sat
4Sun12:274.512:494.26:440.57:030.07:215:26First Quarter4Sun
5Mon1:284.71:514.17:510.58:02-0.17:225:26First Quarter5Mon
6Tue2:334.92:594.09:000.49:04-0.37:225:27Waxing Gibbous6Tue
7Wed3:445.14:114.110:080.210:08-0.57:225:28Waxing Gibbous7Wed
8Thu4:535.45:194.311:11-0.111:10-0.87:225:29Waxing Gibbous8Thu
9Fri5:555.76:194.512:09-0.47:225:30Full Moon9Fri
10Sat6:535.97:174.812:09-1.01:03-0.77:225:31Full Moon10Sat
11Sun7:486.08:134.91:05-1.21:55-0.87:225:32Full Moon11Sun
12Mon8:405.99:075.02:00-1.22:44-0.97:215:32Full Moon12Mon
13Tue9:315.710:015.02:53-1.13:32-0.87:215:33Waning Gibbous13Tue
14Wed10:195.410:535.03:45-0.94:18-0.77:215:34Waning Gibbous14Wed
15Thu11:075.011:464.94:37-0.65:05-0.57:215:35Waning Gibbous15Thu
16Fri11:554.65:32-0.25:54-0.37:215:36Third Quarter16Fri
17Sat12:394.712:444.36:300.16:440.07:205:37Third Quarter17Sat
18Sun1:334.61:354.07:300.37:350.17:205:38Third Quarter18Sun
19Mon2:274.52:273.88:280.58:280.27:205:39Third Quarter19Mon
20Tue3:224.53:233.79:250.59:210.37:195:40Waning Crescent20Tue
21Wed4:174.54:183.710:190.410:130.27:195:41Waning Crescent21Wed
22Thu5:084.65:113.811:090.311:020.17:195:42Waning Crescent22Thu
23Fri5:554.75:584.011:540.211:470.07:185:43Waning Crescent23Fri
24Sat6:384.86:424.112:360.17:185:44New Moon24Sat
25Sun7:184.97:224.212:30-0.11:140.07:175:44New Moon25Sun
26Mon7:554.98:004.21:10-0.21:50-0.17:175:45New Moon26Mon
27Tue8:294.98:344.31:48-0.22:24-0.17:165:46New Moon27Tue
28Wed9:014.89:074.42:26-0.22:57-0.27:165:47Waxing Crescent28Wed
29Thu9:304.79:414.53:05-0.23:31-0.27:155:48Waxing Crescent29Thu
30Fri10:024.510:194.63:45-0.14:07-0.27:145:49Waxing Crescent30Fri
31Sat10:404.411:044.74:300.04:48-0.27:145:50Waxing Crescent31Sat
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 12:51 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 67% 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 First Quarter (67% 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