Tides Today & Tomorrow in South Dewees Island, SC

TIDE TIMES for Sunday, July 26, 2026
The tide is currently falling in South Dewees Island, SC.
Next low tide : in 2h 40m at 11:55 am (0.5 ft)
Next high tide : 6:53 pm (5.3 ft)
Sunset today : 8:22 pm
Sunrise tomorrow : 6:28 am
Moon phase : Waxing Gibbous (92% illuminated)
Tide Station Location : Station #8665111
Common Questions About Tides

South Dewees Island, SC Tides - Feb 1968

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu9:535.010:074.53:16-0.43:46-0.37:145:50Waxing Crescent1Thu
2Fri10:314.710:484.53:59-0.24:23-0.27:135:51Waxing Crescent2Fri
3Sat11:104.411:314.44:420.15:010.07:125:52Waxing Crescent3Sat
4Sun11:514.15:280.45:400.27:125:53First Quarter4Sun
5Mon12:154.312:363.96:190.66:220.37:115:54First Quarter5Mon
6Tue1:034.21:263.77:140.87:100.47:105:55First Quarter6Tue
7Wed1:544.22:203.58:120.88:020.57:095:56First Quarter7Wed
8Thu2:504.23:183.59:100.88:570.47:095:57Waxing Gibbous8Thu
9Fri3:504.34:173.610:070.79:540.37:085:58Waxing Gibbous9Fri
10Sat4:474.55:113.810:580.510:480.07:075:59Waxing Gibbous10Sat
11Sun5:384.85:594.011:450.311:38-0.27:065:59Waxing Gibbous11Sun
12Mon6:235.06:434.212:280.17:056:00Full Moon12Mon
13Tue7:055.27:254.412:26-0.51:10-0.27:046:01Full Moon13Tue
14Wed7:465.38:074.71:13-0.71:50-0.47:036:02Full Moon14Wed
15Thu8:265.38:504.82:00-0.82:30-0.57:026:03Full Moon15Thu
16Fri9:075.29:355.02:47-0.83:11-0.67:016:04Waning Gibbous16Fri
17Sat9:505.110:225.13:35-0.73:53-0.67:006:05Waning Gibbous17Sat
18Sun10:374.811:155.14:26-0.54:39-0.56:596:06Waning Gibbous18Sun
19Mon11:284.55:23-0.25:30-0.46:586:07Third Quarter19Mon
20Tue12:145.012:274.26:260.06:28-0.26:576:07Third Quarter20Tue
21Wed1:214.91:334.07:340.27:33-0.16:566:08Third Quarter21Wed
22Thu2:324.92:443.98:420.28:420.06:556:09Third Quarter22Thu
23Fri3:455.03:564.09:480.29:50-0.16:546:10Waning Crescent23Fri
24Sat4:525.15:034.210:490.010:53-0.26:536:11Waning Crescent24Sat
25Sun5:505.25:594.411:43-0.111:49-0.46:526:12Waning Crescent25Sun
26Mon6:395.36:484.612:31-0.36:506:12New Moon26Mon
27Tue7:245.37:334.812:41-0.51:16-0.46:496:13New Moon27Tue
28Wed8:055.28:164.91:28-0.51:56-0.46:486:14New Moon28Wed
29Thu8:435.18:554.92:12-0.42:34-0.46:476:15New Moon29Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8665111)

Common Questions About South Dewees Island, SC Tides

Show All
What time does the tide turn (slack tide) in South Dewees Island, SC today?

Slack tide in South Dewees Island, SC is approximately 3:24 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 spring phase. Tonight's moon is 92% 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 Waxing Gibbous (92% 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