Tides Today & Tomorrow in South Dewees Island, SC

TIDE TIMES for Monday, June 29, 2026
The tide is currently falling in South Dewees Island, SC.
Next low tide : in 3h 30m at 1:49 pm (0.3 ft)
Next high tide : 8:41 pm (5.3 ft)
Sunset today : 8:31 pm
Sunrise tomorrow : 6:13 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #8665111
Common Questions About Tides

South Dewees Island, SC Tides - Aug 2048

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat1:484.62:255.07:390.38:311.06:338:17Third Quarter1Sat
2Sun2:374.43:155.08:280.59:261.16:348:16Third Quarter2Sun
3Mon3:284.34:065.09:180.510:201.16:348:15Third Quarter3Mon
4Tue4:214.24:585.110:080.611:111.06:358:14Waning Crescent4Tue
5Wed5:154.35:485.210:590.511:590.96:368:13Waning Crescent5Wed
6Thu6:074.46:355.311:470.46:368:12Waning Crescent6Thu
7Fri6:544.57:175.412:430.812:340.36:378:11Waning Crescent7Fri
8Sat7:384.67:575.51:240.61:190.26:388:10New Moon8Sat
9Sun8:204.78:345.52:020.52:020.26:388:09New Moon9Sun
10Mon9:004.89:095.52:390.42:450.26:398:08New Moon10Mon
11Tue9:384.99:445.43:150.33:280.26:408:07Waxing Crescent11Tue
12Wed10:165.110:215.33:510.24:120.36:408:06Waxing Crescent12Wed
13Thu10:565.211:025.24:290.14:590.46:418:05Waxing Crescent13Thu
14Fri11:425.311:485.05:110.15:490.56:428:04Waxing Crescent14Fri
15Sat12:355.45:570.16:470.66:428:03First Quarter15Sat
16Sun12:414.91:365.56:510.17:510.76:438:02First Quarter16Sun
17Mon1:424.82:425.57:510.18:560.76:448:01First Quarter17Mon
18Tue2:484.73:515.78:560.110:020.66:448:00First Quarter18Tue
19Wed3:584.74:595.810:020.111:040.46:457:59Waxing Gibbous19Wed
20Thu5:084.96:036.011:070.06:467:57Waxing Gibbous20Thu
21Fri6:145.16:596.112:030.212:09-0.26:467:56Waxing Gibbous21Fri
22Sat7:125.47:506.212:570.01:07-0.36:477:55Full Moon22Sat
23Sun8:065.68:396.11:47-0.22:01-0.36:487:54Full Moon23Sun
24Mon8:575.79:266.02:35-0.32:53-0.26:487:53Full Moon24Mon
25Tue9:475.710:105.73:20-0.23:420.06:497:51Waning Gibbous25Tue
26Wed10:345.710:545.54:03-0.14:300.36:507:50Waning Gibbous26Wed
27Thu11:195.611:375.24:440.15:170.66:507:49Waning Gibbous27Thu
28Fri12:055.45:250.36:040.96:517:48Waning Gibbous28Fri
29Sat12:214.912:515.36:080.66:551.16:527:46Third Quarter29Sat
30Sun1:094.71:405.26:530.87:491.36:527:45Third Quarter30Sun
31Mon1:594.52:315.17:430.98:441.46:537:44Third Quarter31Mon
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 5:15 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 spring phase. Tonight's moon is 100% 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 Full Moon (100% 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