Tides Today & Tomorrow in South Dewees Island, SC

TIDE TIMES for Friday, July 10, 2026
The tide is currently rising in South Dewees Island, SC.
Next low tide : 11:19 pm (0.4 ft)
Next high tide : in 2h 27m at 4:55 pm (5.6 ft)
Sunset today : 8:29 pm
Sunrise tomorrow : 6:18 am
Moon phase : Waning Crescent (20% illuminated)
Tide Station Location : Station #8665111
Common Questions About Tides

South Dewees Island, SC Tides - Dec 1984

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat2:124.42:394.68:081.18:400.87:035:12First Quarter1Sat
2Sun3:054.53:294.69:041.09:250.77:045:12Waxing Gibbous2Sun
3Mon3:574.74:184.59:580.910:080.57:055:12Waxing Gibbous3Mon
4Tue4:464.95:054.510:480.810:500.47:065:12Waxing Gibbous4Tue
5Wed5:305.15:494.511:340.611:310.37:075:12Waxing Gibbous5Wed
6Thu6:115.36:314.512:180.57:075:12Full Moon6Thu
7Fri6:505.47:114.512:110.11:010.47:085:12Full Moon7Fri
8Sat7:285.57:504.412:510.01:420.37:095:12Full Moon8Sat
9Sun8:065.58:294.41:330.02:240.37:105:12Full Moon9Sun
10Mon8:465.59:104.32:15-0.13:050.37:105:13Waning Gibbous10Mon
11Tue9:295.59:554.33:00-0.13:490.37:115:13Waning Gibbous11Tue
12Wed10:165.410:474.33:47-0.14:360.37:125:13Waning Gibbous12Wed
13Thu11:095.311:464.44:400.05:280.37:125:13Waning Gibbous13Thu
14Fri12:065.25:390.16:240.27:135:14Third Quarter14Fri
15Sat12:514.51:075.16:440.27:220.17:145:14Third Quarter15Sat
16Sun1:564.82:084.97:520.28:20-0.17:145:14Third Quarter16Sun
17Mon3:005.03:104.88:580.19:17-0.37:155:15Waning Crescent17Mon
18Tue4:045.34:124.810:02-0.110:13-0.47:165:15Waning Crescent18Tue
19Wed5:035.65:114.811:03-0.211:07-0.67:165:15Waning Crescent19Wed
20Thu5:585.96:054.811:59-0.47:175:16Waning Crescent20Thu
21Fri6:496.06:574.712:00-0.712:52-0.57:175:16New Moon21Fri
22Sat7:395.97:464.712:50-0.71:42-0.47:185:17New Moon22Sat
23Sun8:275.88:354.61:39-0.62:30-0.47:185:17New Moon23Sun
24Mon9:135.69:224.52:26-0.43:15-0.27:195:18Waxing Crescent24Mon
25Tue9:585.310:084.33:11-0.23:590.07:195:19Waxing Crescent25Tue
26Wed10:425.010:554.23:550.04:420.27:195:19Waxing Crescent26Wed
27Thu11:254.811:434.14:410.35:250.47:205:20Waxing Crescent27Thu
28Fri12:104.55:290.56:100.57:205:20First Quarter28Fri
29Sat12:334.112:574.36:220.76:560.57:205:21First Quarter29Sat
30Sun1:244.11:464.17:190.97:430.57:215:22First Quarter30Sun
31Mon2:154.22:364.08:170.98:290.47:215:23First Quarter31Mon
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 8:07 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 20% 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 Crescent (20% 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