Tides Today & Tomorrow in South Dewees Island, SC

TIDE TIMES for Monday, June 29, 2026
The tide is currently rising in South Dewees Island, SC.
Next low tide : 1:49 pm (0.3 ft)
Next high tide : in 4h 15m at 8:06 am (4.1 ft)
Sunset today : 8:31 pm
Sunrise tomorrow : 6:13 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #8665111
Common Questions About Tides

South Dewees Island, SC Tides - Apr 2000

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat5:234.95:384.711:150.311:290.26:056:39Waning Crescent1Sat
2Sun7:075.07:215.012:580.17:047:39Waning Crescent2Sun
3Mon7:485.28:015.31:170.01:39-0.27:037:40New Moon3Mon
4Tue8:295.28:425.62:03-0.22:21-0.47:027:41New Moon4Tue
5Wed9:095.29:245.72:50-0.43:03-0.57:007:42New Moon5Wed
6Thu9:525.110:085.83:36-0.43:46-0.56:597:42Waxing Crescent6Thu
7Fri10:385.010:565.84:24-0.44:31-0.56:587:43Waxing Crescent7Fri
8Sat11:294.811:495.75:15-0.25:21-0.36:567:44Waxing Crescent8Sat
9Sun12:274.66:100.06:16-0.16:557:44Waxing Crescent9Sun
10Mon12:505.51:324.57:120.27:180.16:547:45First Quarter10Mon
11Tue1:575.42:414.58:180.38:260.26:537:46First Quarter11Tue
12Wed3:065.33:494.69:230.29:340.16:527:47First Quarter12Wed
13Thu4:145.24:554.810:240.110:390.06:507:47Waxing Gibbous13Thu
14Fri5:185.35:555.111:210.011:40-0.16:497:48Waxing Gibbous14Fri
15Sat6:155.36:485.412:14-0.26:487:49Waxing Gibbous15Sat
16Sun7:055.37:365.612:36-0.31:01-0.36:477:49Waxing Gibbous16Sun
17Mon7:495.38:205.71:27-0.41:45-0.36:467:50Full Moon17Mon
18Tue8:315.29:025.72:15-0.42:26-0.36:447:51Full Moon18Tue
19Wed9:125.19:415.73:00-0.33:05-0.26:437:52Full Moon19Wed
20Thu9:514.910:205.53:43-0.23:420.06:427:52Full Moon20Thu
21Fri10:314.710:575.34:230.04:170.26:417:53Waning Gibbous21Fri
22Sat11:104.511:355.15:030.34:520.56:407:54Waning Gibbous22Sat
23Sun11:524.35:440.55:290.76:397:55Waning Gibbous23Sun
24Mon12:164.912:384.26:280.76:110.86:387:55Waning Gibbous24Mon
25Tue1:024.81:284.17:160.87:021.06:377:56Third Quarter25Tue
26Wed1:534.62:224.18:070.98:001.06:357:57Third Quarter26Wed
27Thu2:484.63:174.28:590.89:021.06:347:57Third Quarter27Thu
28Fri3:444.64:124.49:510.710:030.86:337:58Third Quarter28Fri
29Sat4:414.75:074.710:410.511:020.66:327:59Waning Crescent29Sat
30Sun5:354.85:595.011:300.311:570.36:318:00Waning Crescent30Sun
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 10:57 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 100% 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 Full Moon (100% 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