Tides Today & Tomorrow in South Dewees Island, SC

TIDE TIMES for Saturday, July 4, 2026
The tide is currently falling in South Dewees Island, SC.
Next low tide : in 4h 22m at 5:13 am (0.3 ft)
Next high tide : 11:23 am (4.3 ft)
Sunset today : 8:30 pm
Sunrise tomorrow : 6:15 am
Moon phase : Waning Gibbous (81% illuminated)
Tide Station Location : Station #8665111
Common Questions About Tides

South Dewees Island, SC Tides - Apr 2055

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu11:124.411:205.15:020.35:040.27:067:39Waxing Crescent1Thu
2Fri11:504.35:440.45:480.37:057:39Waxing Crescent2Fri
3Sat12:045.112:394.26:340.56:400.37:037:40First Quarter3Sat
4Sun12:585.11:384.27:330.67:410.47:027:41First Quarter4Sun
5Mon2:015.02:464.38:370.58:480.37:017:41First Quarter5Mon
6Tue3:115.13:584.59:410.49:570.16:597:42First Quarter6Tue
7Wed4:235.25:084.910:430.111:03-0.26:587:43Waxing Gibbous7Wed
8Thu5:315.46:115.311:42-0.26:577:43Waxing Gibbous8Thu
9Fri6:325.67:085.712:06-0.512:37-0.56:567:44Waxing Gibbous9Fri
10Sat7:275.88:016.01:04-0.81:28-0.86:547:45Full Moon10Sat
11Sun8:195.88:536.21:59-0.92:18-0.96:537:46Full Moon11Sun
12Mon9:115.79:456.32:53-1.03:06-0.96:527:46Full Moon12Mon
13Tue10:025.510:366.23:45-0.93:54-0.76:517:47Waning Gibbous13Tue
14Wed10:535.211:275.94:36-0.74:42-0.56:497:48Waning Gibbous14Wed
15Thu11:444.95:28-0.45:30-0.16:487:49Waning Gibbous15Thu
16Fri12:205.612:384.66:210.06:230.26:477:49Waning Gibbous16Fri
17Sat1:145.31:344.47:180.37:200.66:467:50Third Quarter17Sat
18Sun2:105.02:314.38:150.58:210.86:457:51Third Quarter18Sun
19Mon3:064.83:274.39:110.69:210.86:447:51Third Quarter19Mon
20Tue4:014.74:234.410:040.610:190.86:427:52Third Quarter20Tue
21Wed4:544.75:164.610:530.511:130.76:417:53Waning Crescent21Wed
22Thu5:444.86:054.811:390.46:407:54Waning Crescent22Thu
23Fri6:304.86:495.012:020.612:200.36:397:54Waning Crescent23Fri
24Sat7:124.97:295.212:470.412:590.26:387:55Waning Crescent24Sat
25Sun7:524.98:075.41:290.31:360.16:377:56New Moon25Sun
26Mon8:304.88:425.42:100.22:120.16:367:57New Moon26Mon
27Tue9:074.79:155.52:490.22:470.16:357:57New Moon27Tue
28Wed9:424.69:475.53:270.23:230.16:347:58New Moon28Wed
29Thu10:164.510:215.54:050.24:010.16:337:59Waxing Crescent29Thu
30Fri10:534.411:015.44:450.34:430.16:328:00Waxing Crescent30Fri
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 8:18 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 81% 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 (81% 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