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 : 10:12 am (-0.3 ft)
Next high tide : in 48m at 4:06 am (4.3 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 - Jul 2065

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed6:564.17:215.312:520.612:330.26:148:31Waning Crescent1Wed
2Thu7:414.18:025.41:340.51:170.16:158:31New Moon2Thu
3Fri8:244.28:415.42:150.42:000.16:158:31New Moon3Fri
4Sat9:054.29:195.42:540.32:430.06:168:30New Moon4Sat
5Sun9:454.39:565.43:320.23:260.06:168:30Waxing Crescent5Sun
6Mon10:264.410:335.34:090.14:110.06:178:30Waxing Crescent6Mon
7Tue11:084.511:145.24:480.14:570.16:178:30Waxing Crescent7Tue
8Wed11:554.711:595.15:290.05:490.26:188:30Waxing Crescent8Wed
9Thu12:484.96:14-0.16:460.46:188:30First Quarter9Thu
10Fri12:504.91:455.17:05-0.17:500.46:198:29First Quarter10Fri
11Sat1:464.72:465.38:00-0.28:550.46:198:29First Quarter11Sat
12Sun2:474.63:495.48:58-0.210:010.46:208:29First Quarter12Sun
13Mon3:514.54:565.69:59-0.311:060.26:218:28Waxing Gibbous13Mon
14Tue5:004.46:005.811:01-0.36:218:28Waxing Gibbous14Tue
15Wed6:064.57:006.012:070.112:03-0.46:228:27Waxing Gibbous15Wed
16Thu7:084.67:556.01:04-0.11:01-0.56:228:27Full Moon16Thu
17Fri8:054.88:476.01:58-0.21:57-0.56:238:27Full Moon17Fri
18Sat9:004.89:375.92:49-0.32:51-0.46:248:26Full Moon18Sat
19Sun9:544.910:245.73:36-0.33:42-0.26:248:26Waning Gibbous19Sun
20Mon10:444.911:095.44:21-0.34:310.06:258:25Waning Gibbous20Mon
21Tue11:334.911:515.15:04-0.15:190.36:258:24Waning Gibbous21Tue
22Wed12:204.95:460.06:080.66:268:24Waning Gibbous22Wed
23Thu12:344.81:074.86:280.27:000.96:278:23Third Quarter23Thu
24Fri1:194.51:544.87:110.47:551.06:278:23Third Quarter24Fri
25Sat2:054.32:424.87:560.58:501.16:288:22Third Quarter25Sat
26Sun2:534.23:314.88:420.69:441.16:298:21Third Quarter26Sun
27Mon3:454.14:224.99:310.610:381.16:298:21Waning Crescent27Mon
28Tue4:394.05:155.010:210.511:291.06:308:20Waning Crescent28Tue
29Wed5:334.16:055.211:120.46:318:19Waning Crescent29Wed
30Thu6:244.26:525.412:160.812:020.36:318:18Waning Crescent30Thu
31Fri7:114.37:345.51:010.712:500.26:328:18New Moon31Fri
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 7:09 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 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