Tides Today & Tomorrow in South Dewees Island, SC

TIDE TIMES for Saturday, July 25, 2026
The tide is currently rising in South Dewees Island, SC.
Next low tide (tomorrow) : 12:11 am (0.8 ft)
Next high tide : in 39m at 6:07 pm (5.2 ft)
Sunset today : 8:22 pm
Sunrise tomorrow : 6:28 am
Moon phase : Waxing Gibbous (86% illuminated)
Tide Station Location : Station #8665111
Common Questions About Tides

South Dewees Island, SC Tides - Feb 2081

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat1:474.81:523.97:480.27:500.07:125:51Third Quarter1Sat
2Sun2:474.72:513.88:500.38:490.17:125:52Third Quarter2Sun
3Mon3:494.73:523.79:500.39:470.17:115:53Waning Crescent3Mon
4Tue4:474.74:503.810:450.310:430.17:105:54Waning Crescent4Tue
5Wed5:384.75:413.911:350.211:330.07:095:55Waning Crescent5Wed
6Thu6:234.86:264.112:200.17:095:56Waning Crescent6Thu
7Fri7:044.97:084.212:18-0.11:000.07:085:57New Moon7Fri
8Sat7:424.97:474.31:00-0.11:380.07:075:58New Moon8Sat
9Sun8:184.98:244.41:39-0.22:12-0.17:065:59New Moon9Sun
10Mon8:514.88:584.42:16-0.12:43-0.17:056:00New Moon10Mon
11Tue9:224.69:304.42:51-0.13:130.07:046:01Waxing Crescent11Tue
12Wed9:524.410:014.43:260.13:440.07:036:02Waxing Crescent12Wed
13Thu10:214.210:344.54:030.24:160.07:026:03Waxing Crescent13Thu
14Fri10:544.011:144.54:440.44:540.17:016:03Waxing Crescent14Fri
15Sat11:363.95:330.55:400.17:006:04First Quarter15Sat
16Sun12:034.612:293.76:320.66:350.26:596:05First Quarter16Sun
17Mon1:034.61:333.77:380.77:390.16:586:06First Quarter17Mon
18Tue2:124.72:453.78:480.68:470.06:576:07First Quarter18Tue
19Wed3:284.94:013.99:550.49:56-0.36:566:08Waxing Gibbous19Wed
20Thu4:415.15:104.310:560.011:00-0.66:556:09Waxing Gibbous20Thu
21Fri5:435.56:094.711:52-0.36:546:09Waxing Gibbous21Fri
22Sat6:385.77:045.112:00-0.912:43-0.76:536:10Full Moon22Sat
23Sun7:295.87:575.412:56-1.21:32-0.96:526:11Full Moon23Sun
24Mon8:195.88:485.61:50-1.22:19-1.06:516:12Full Moon24Mon
25Tue9:075.69:395.62:42-1.23:04-1.06:506:13Waning Gibbous25Tue
26Wed9:555.310:305.63:34-1.03:49-0.86:486:14Waning Gibbous26Wed
27Thu10:434.911:225.44:26-0.64:35-0.66:476:14Waning Gibbous27Thu
28Fri11:334.55:20-0.25:24-0.26:466:15Third Quarter28Fri
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 9:09 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 86% 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 (86% 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