Tides Today & Tomorrow in South Dewees Island, SC

TIDE TIMES for Monday, July 6, 2026
The tide is currently falling in South Dewees Island, SC.
Next low tide : in 4h 51m at 6:35 am (0.1 ft)
Next high tide : 12:55 pm (4.6 ft)
Sunset today : 8:30 pm
Sunrise tomorrow : 6:16 am
Moon phase : Third Quarter (62% illuminated)
Tide Station Location : Station #8665111
Common Questions About Tides

South Dewees Island, SC Tides - May 1992

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri7:364.67:535.61:210.31:180.06:308:00New Moon1Fri
2Sat8:174.78:335.82:050.12:01-0.26:308:01New Moon2Sat
3Sun8:584.69:145.92:500.02:45-0.36:298:02New Moon3Sun
4Mon9:434.69:595.93:350.03:30-0.36:288:03Waxing Crescent4Mon
5Tue10:314.610:485.84:220.04:19-0.26:278:03Waxing Crescent5Tue
6Wed11:244.611:425.75:100.05:10-0.16:268:04Waxing Crescent6Wed
7Thu12:234.66:030.16:080.06:258:05Waxing Crescent7Thu
8Fri12:415.51:284.67:000.17:120.26:248:06First Quarter8Fri
9Sat1:435.42:334.88:000.18:190.26:238:06First Quarter9Sat
10Sun2:465.23:375.08:590.09:260.26:238:07First Quarter10Sun
11Mon3:485.14:395.39:56-0.110:300.16:228:08Waxing Gibbous11Mon
12Tue4:485.05:385.610:51-0.211:310.06:218:08Waxing Gibbous12Tue
13Wed5:465.06:315.811:43-0.36:208:09Waxing Gibbous13Wed
14Thu6:394.97:206.012:28-0.112:33-0.46:208:10Waxing Gibbous14Thu
15Fri7:274.88:076.01:20-0.21:20-0.46:198:11Full Moon15Fri
16Sat8:144.88:515.92:10-0.22:06-0.36:188:11Full Moon16Sat
17Sun8:594.79:345.82:57-0.22:50-0.16:188:12Full Moon17Sun
18Mon9:444.510:175.63:410.03:320.16:178:13Waning Gibbous18Mon
19Tue10:294.410:585.34:240.14:130.36:168:13Waning Gibbous19Tue
20Wed11:134.311:395.15:050.34:540.56:168:14Waning Gibbous20Wed
21Thu11:594.25:460.55:360.76:158:15Waning Gibbous21Thu
22Fri12:234.812:474.26:290.66:230.96:158:15Third Quarter22Fri
23Sat1:084.71:384.27:130.77:161.16:148:16Third Quarter23Sat
24Sun1:564.52:294.37:590.78:141.16:148:17Third Quarter24Sun
25Mon2:444.43:194.48:450.69:131.16:138:17Third Quarter25Mon
26Tue3:344.34:104.79:310.510:100.96:138:18Third Quarter26Tue
27Wed4:274.35:024.910:190.411:070.86:128:19Waning Crescent27Wed
28Thu5:194.35:515.211:070.26:128:19Waning Crescent28Thu
29Fri6:104.36:385.512:000.511:55 AM0.06:128:20Waning Crescent29Fri
30Sat6:594.47:245.712:510.312:44-0.26:118:21New Moon30Sat
31Sun7:474.58:105.91:410.11:33-0.46:118:21New Moon31Sun
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 9:45 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 transitional phase. Tonight's moon is 62% 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 shifting between spring and neap.

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 Third Quarter (62% illuminated). This places South Dewees Island, SC in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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