Tides Today & Tomorrow in South Dewees Island, SC

TIDE TIMES for Monday, June 15, 2026
The tide is currently rising in South Dewees Island, SC.
Next low tide : 2:26 pm (-0.8 ft)
Next high tide : in 3h 56m at 8:39 am (4.7 ft)
Sunset today : 8:28 pm
Sunrise tomorrow : 6:10 am
Moon phase : New Moon (0% illuminated)
Tide Station Location : Station #8665111
Common Questions About Tides

South Dewees Island, SC Tides - Nov 2015

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun12:145.211:39 AM5.94:540.35:450.76:365:28Third Quarter1Sun
2Mon12:115.112:345.65:500.66:420.96:375:27Third Quarter2Mon
3Tue1:074.91:285.46:490.97:381.06:385:26Third Quarter3Tue
4Wed2:024.92:205.27:481.08:311.06:395:25Third Quarter4Wed
5Thu2:565.03:105.18:441.09:190.96:405:24Waning Crescent5Thu
6Fri3:495.14:005.19:380.910:050.86:405:24Waning Crescent6Fri
7Sat4:385.24:475.110:290.810:480.76:415:23Waning Crescent7Sat
8Sun5:245.45:315.211:150.711:270.66:425:22Waning Crescent8Sun
9Mon6:065.66:135.212:000.66:435:21New Moon9Mon
10Tue6:465.76:525.212:050.512:420.56:445:21New Moon10Tue
11Wed7:245.77:305.112:420.41:220.56:455:20New Moon11Wed
12Thu8:005.78:065.01:180.42:020.56:465:19New Moon12Thu
13Fri8:345.78:424.91:550.42:410.56:475:19New Moon13Fri
14Sat9:095.69:194.82:330.43:210.56:485:18Waxing Crescent14Sat
15Sun9:455.610:004.83:140.44:030.66:495:17Waxing Crescent15Sun
16Mon10:285.510:484.83:590.44:500.66:495:17Waxing Crescent16Mon
17Tue11:195.411:454.84:490.55:420.66:505:16First Quarter17Tue
18Wed12:195.45:480.56:390.56:515:16First Quarter18Wed
19Thu12:494.91:235.46:530.57:390.36:525:15First Quarter19Thu
20Fri1:555.12:275.48:010.58:380.16:535:15First Quarter20Fri
21Sat3:015.43:325.49:080.39:36-0.16:545:15Waxing Gibbous21Sat
22Sun4:075.74:355.510:130.110:32-0.46:555:14Waxing Gibbous22Sun
23Mon5:076.05:335.511:14-0.111:27-0.66:565:14Waxing Gibbous23Mon
24Tue6:036.36:275.612:10-0.36:575:13Full Moon24Tue
25Wed6:566.47:205.512:19-0.71:05-0.46:585:13Full Moon25Wed
26Thu7:486.48:125.41:10-0.71:57-0.46:585:13Full Moon26Thu
27Fri8:396.39:045.32:00-0.72:47-0.36:595:13Waning Gibbous27Fri
28Sat9:286.19:555.12:49-0.53:35-0.17:005:12Waning Gibbous28Sat
29Sun10:175.810:464.93:38-0.24:230.17:015:12Waning Gibbous29Sun
30Mon11:055.511:384.74:260.15:120.47:025:12Waning Gibbous30Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8665111)

Common Questions About South Dewees Island, SC Tides

Show All
What time does the tide turn (slack tide) in South Dewees Island, SC today?

Slack tide in South Dewees Island, SC is approximately 11:32 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 0% 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 New Moon (0% 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