Tides Today & Tomorrow in South Dewees Island, SC

TIDE TIMES for Tuesday, July 14, 2026
The tide is currently falling in South Dewees Island, SC.
Next low tide : in 43m at 2:15 am (-0.3 ft)
Next high tide : 8:26 am (4.8 ft)
Sunset today : 8:28 pm
Sunrise tomorrow : 6:21 am
Moon phase : New Moon (0% illuminated)
Tide Station Location : Station #8665111
Common Questions About Tides

South Dewees Island, SC Tides - Dec 1979

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat5:366.05:585.311:38-0.211:47-0.67:035:12Waxing Gibbous1Sat
2Sun6:276.16:485.312:32-0.37:035:12Full Moon2Sun
3Mon7:156.17:365.212:37-0.61:22-0.37:045:12Full Moon3Mon
4Tue8:026.18:245.11:24-0.62:10-0.27:055:12Full Moon4Tue
5Wed8:475.99:104.92:10-0.42:56-0.17:065:12Waning Gibbous5Wed
6Thu9:305.79:564.72:55-0.23:390.17:075:12Waning Gibbous6Thu
7Fri10:135.410:424.63:380.04:220.37:085:12Waning Gibbous7Fri
8Sat10:565.111:304.44:220.35:050.57:085:12Waning Gibbous8Sat
9Sun11:404.95:070.55:500.77:095:12Third Quarter9Sun
10Mon12:204.312:274.75:580.76:370.87:105:12Third Quarter10Mon
11Tue1:114.31:164.56:520.97:240.87:115:13Third Quarter11Tue
12Wed2:034.32:074.57:480.98:120.77:115:13Third Quarter12Wed
13Thu2:554.42:584.48:440.88:590.67:125:13Waning Crescent13Thu
14Fri3:484.63:514.49:390.79:470.47:135:13Waning Crescent14Fri
15Sat4:394.84:434.410:320.510:340.27:135:14Waning Crescent15Sat
16Sun5:265.15:314.511:220.311:200.07:145:14Waning Crescent16Sun
17Mon6:105.36:164.612:090.17:155:14New Moon17Mon
18Tue6:525.56:594.712:06-0.212:56-0.17:155:15New Moon18Tue
19Wed7:355.67:444.812:52-0.41:42-0.37:165:15New Moon19Wed
20Thu8:195.78:304.81:39-0.52:27-0.47:165:16New Moon20Thu
21Fri9:055.79:204.82:27-0.63:14-0.57:175:16Waxing Crescent21Fri
22Sat9:545.610:134.83:16-0.64:02-0.57:175:17Waxing Crescent22Sat
23Sun10:465.511:104.84:08-0.54:53-0.47:185:17Waxing Crescent23Sun
24Mon11:435.35:05-0.35:48-0.47:185:18First Quarter24Mon
25Tue12:124.812:435.16:08-0.16:45-0.47:195:18First Quarter25Tue
26Wed1:164.91:444.97:140.07:44-0.47:195:19First Quarter26Wed
27Thu2:205.02:454.88:210.08:43-0.47:195:19First Quarter27Thu
28Fri3:235.13:474.79:260.09:40-0.57:205:20Waxing Gibbous28Fri
29Sat4:255.34:464.710:27-0.110:35-0.67:205:21Waxing Gibbous29Sat
30Sun5:215.55:414.711:24-0.311:28-0.77:205:21Waxing Gibbous30Sun
31Mon6:125.66:304.712:16-0.47:215:22Full Moon31Mon
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 5:20 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 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