Tides Today & Tomorrow in South Dewees Island, SC

TIDE TIMES for Monday, July 13, 2026
The tide is currently rising in South Dewees Island, SC.
Next low tide : 1:15 pm (-0.7 ft)
Next high tide : in 3h 47m at 7:26 am (4.6 ft)
Sunset today : 8:28 pm
Sunrise tomorrow : 6:20 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #8665111
Common Questions About Tides

South Dewees Island, SC Tides - Nov 2068

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu12:054.812:405.56:060.77:020.97:376:27First Quarter1Thu
2Fri1:044.91:415.57:070.88:010.87:386:26First Quarter2Fri
3Sat2:095.02:455.58:140.79:000.57:396:25First Quarter3Sat
4Sun2:155.32:495.58:220.68:580.36:405:24Waxing Gibbous4Sun
5Mon3:215.63:525.69:280.49:550.06:415:23Waxing Gibbous5Mon
6Tue4:256.04:535.710:320.210:50-0.36:415:23Waxing Gibbous6Tue
7Wed5:246.35:495.711:310.011:43-0.56:425:22Waxing Gibbous7Wed
8Thu6:196.56:435.712:28-0.26:435:21Full Moon8Thu
9Fri7:126.77:365.712:35-0.61:22-0.26:445:20Full Moon9Fri
10Sat8:046.68:295.51:26-0.62:14-0.26:455:20Full Moon10Sat
11Sun8:566.59:215.32:17-0.43:050.06:465:19Waning Gibbous11Sun
12Mon9:476.210:145.13:06-0.23:540.26:475:18Waning Gibbous12Mon
13Tue10:385.911:075.03:560.14:440.46:485:18Waning Gibbous13Tue
14Wed11:295.54:470.45:360.76:495:17Waning Gibbous14Wed
15Thu12:024.812:205.35:410.76:290.86:505:17Third Quarter15Thu
16Fri12:574.71:115.06:390.97:210.96:505:16Third Quarter16Fri
17Sat1:504.72:014.97:371.08:110.96:515:16Third Quarter17Sat
18Sun2:434.82:514.88:331.08:580.96:525:15Third Quarter18Sun
19Mon3:354.93:414.79:271.09:430.86:535:15Waning Crescent19Mon
20Tue4:255.14:304.710:180.810:260.76:545:14Waning Crescent20Tue
21Wed5:125.35:174.811:060.711:070.56:555:14Waning Crescent21Wed
22Thu5:555.46:004.811:510.611:470.46:565:14Waning Crescent22Thu
23Fri6:365.56:414.812:340.56:575:13New Moon23Fri
24Sat7:145.67:204.812:270.31:160.46:585:13New Moon24Sat
25Sun7:525.67:584.71:060.21:560.36:585:13New Moon25Sun
26Mon8:295.68:364.71:470.12:370.36:595:13New Moon26Mon
27Tue9:065.69:174.72:290.13:180.37:005:12Waxing Crescent27Tue
28Wed9:475.510:024.73:130.14:010.37:015:12Waxing Crescent28Wed
29Thu10:325.410:534.74:000.24:480.37:025:12Waxing Crescent29Thu
30Fri11:245.311:524.84:530.25:400.27:035:12First Quarter30Fri
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 10:20 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 1% 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 (1% 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