Tides Today & Tomorrow in South Dewees Island, SC

TIDE TIMES for Saturday, June 20, 2026
The tide is currently rising in South Dewees Island, SC.
Next low tide : 7:13 pm (0.2 ft)
Next high tide : in 45m at 1:36 pm (4.8 ft)
Sunset today : 8:30 pm
Sunrise tomorrow : 6:11 am
Moon phase : First Quarter (37% illuminated)
Tide Station Location : Station #8665111
Common Questions About Tides

South Dewees Island, SC Tides - May 2013

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed1:115.61:404.87:15-0.17:260.16:318:00Third Quarter1Wed
2Thu2:145.42:444.98:15-0.18:340.36:308:01Third Quarter2Thu
3Fri3:155.23:465.09:140.09:390.36:298:02Third Quarter3Fri
4Sat4:145.14:465.210:10-0.110:410.26:288:03Waning Crescent4Sat
5Sun5:115.05:415.411:02-0.111:390.26:278:03Waning Crescent5Sun
6Mon6:035.06:315.511:51-0.26:268:04Waning Crescent6Mon
7Tue6:504.97:155.712:310.112:37-0.26:258:05Waning Crescent7Tue
8Wed7:334.97:565.71:190.01:20-0.26:248:05New Moon8Wed
9Thu8:154.88:345.72:040.02:00-0.16:238:06New Moon9Thu
10Fri8:564.79:125.62:460.12:390.06:238:07New Moon10Fri
11Sat9:364.69:485.53:260.13:170.16:228:08New Moon11Sat
12Sun10:164.510:245.34:040.33:540.36:218:08Waxing Crescent12Sun
13Mon10:574.311:005.24:400.44:300.46:208:09Waxing Crescent13Mon
14Tue11:374.211:385.05:160.55:090.66:208:10Waxing Crescent14Tue
15Wed12:204.25:540.75:520.76:198:11Waxing Crescent15Wed
16Thu12:194.91:064.26:350.76:420.86:188:11First Quarter16Thu
17Fri1:044.71:564.27:220.77:390.86:188:12First Quarter17Fri
18Sat1:554.72:494.48:120.68:400.86:178:13First Quarter18Sat
19Sun2:494.63:444.79:040.49:410.76:168:13First Quarter19Sun
20Mon3:464.74:405.09:570.210:430.46:168:14Waxing Gibbous20Mon
21Tue4:454.75:375.410:510.011:420.26:158:15Waxing Gibbous21Tue
22Wed5:444.86:315.711:46-0.36:158:15Waxing Gibbous22Wed
23Thu6:404.97:236.012:39-0.112:39-0.56:148:16Full Moon23Thu
24Fri7:355.08:156.31:33-0.41:32-0.76:148:17Full Moon24Fri
25Sat8:305.19:096.32:27-0.62:26-0.86:138:17Full Moon25Sat
26Sun9:275.110:056.33:20-0.73:20-0.86:138:18Full Moon26Sun
27Mon10:265.111:016.14:12-0.74:14-0.66:138:19Waning Gibbous27Mon
28Tue11:265.011:595.95:05-0.65:10-0.46:128:19Waning Gibbous28Tue
29Wed12:275.05:59-0.56:09-0.26:128:20Waning Gibbous29Wed
30Thu12:575.61:285.06:55-0.47:120.16:118:21Third Quarter30Thu
31Fri1:545.42:285.07:52-0.38:170.36:118:21Third Quarter31Fri
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 4:24 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 transitional phase. Tonight's moon is 37% 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 First Quarter (37% 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