Tides Today & Tomorrow in South Dewees Island, SC

TIDE TIMES for Saturday, July 4, 2026
The tide is currently rising in South Dewees Island, SC.
Next low tide (tomorrow) : 5:51 am (0.2 ft)
Next high tide : in 4h 49m at 11:38 pm (4.9 ft)
Sunset today : 8:30 pm
Sunrise tomorrow : 6:15 am
Moon phase : Waning Gibbous (81% illuminated)
Tide Station Location : Station #8665111
Common Questions About Tides

South Dewees Island, SC Tides - Jul 1994

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri2:364.43:134.78:330.39:160.96:148:31Third Quarter1Fri
2Sat3:254.34:024.89:190.310:100.96:148:31Third Quarter2Sat
3Sun4:154.24:524.910:050.311:020.86:158:31Waning Crescent3Sun
4Mon5:074.25:415.110:520.311:510.76:158:30Waning Crescent4Mon
5Tue5:584.26:285.211:390.26:168:30Waning Crescent5Tue
6Wed6:464.27:115.312:370.612:240.16:168:30Waning Crescent6Wed
7Thu7:314.37:525.41:200.41:090.06:178:30New Moon7Thu
8Fri8:144.48:315.52:020.31:53-0.16:178:30New Moon8Fri
9Sat8:564.49:095.52:420.22:38-0.16:188:30New Moon9Sat
10Sun9:384.59:485.53:220.03:22-0.16:188:29New Moon10Sun
11Mon10:214.610:285.44:02-0.14:08-0.16:198:29Waxing Crescent11Mon
12Tue11:064.711:115.34:42-0.14:560.06:198:29Waxing Crescent12Tue
13Wed11:554.911:595.25:26-0.25:490.16:208:28Waxing Crescent13Wed
14Thu12:505.06:14-0.26:470.26:208:28First Quarter14Thu
15Fri12:535.01:495.27:06-0.37:510.36:218:28First Quarter15Fri
16Sat1:514.92:515.38:03-0.38:560.36:228:27First Quarter16Sat
17Sun2:534.73:555.59:03-0.310:010.26:228:27First Quarter17Sun
18Mon3:584.74:595.710:04-0.411:040.16:238:26Waxing Gibbous18Mon
19Tue5:044.76:025.911:05-0.46:238:26Waxing Gibbous19Tue
20Wed6:094.76:596.012:04-0.112:05-0.56:248:25Waxing Gibbous20Wed
21Thu7:074.87:526.01:00-0.21:02-0.56:258:25Full Moon21Thu
22Fri8:024.98:426.01:52-0.31:56-0.56:258:24Full Moon22Fri
23Sat8:555.09:295.92:41-0.42:47-0.46:268:24Full Moon23Sat
24Sun9:465.010:155.73:28-0.43:36-0.26:278:23Waning Gibbous24Sun
25Mon10:345.010:585.44:12-0.34:230.06:278:22Waning Gibbous25Mon
26Tue11:214.911:405.14:54-0.15:090.36:288:22Waning Gibbous26Tue
27Wed12:064.95:340.15:560.66:298:21Waning Gibbous27Wed
28Thu12:224.912:524.86:150.26:450.86:298:20Third Quarter28Thu
29Fri1:064.61:394.86:580.47:371.06:308:20Third Quarter29Fri
30Sat1:534.42:274.87:430.58:311.16:318:19Third Quarter30Sat
31Sun2:414.33:174.88:300.69:251.16:318:18Third Quarter31Sun
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 2:44 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 81% 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 Gibbous (81% 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