Tides Today & Tomorrow in South Dewees Island, SC

TIDE TIMES for Monday, August 3, 2026
The tide is currently rising in South Dewees Island, SC.
Next low tide (tomorrow) : 6:04 am (0.1 ft)
Next high tide : in 3h 05m at 11:53 pm (4.9 ft)
Sunset today : 8:15 pm
Sunrise tomorrow : 6:34 am
Moon phase : Waning Gibbous (75% illuminated)
Tide Station Location : Station #8665111
Common Questions About Tides

South Dewees Island, SC Tides - May 1955

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun4:254.95:085.110:280.210:550.36:318:00Waxing Gibbous1Sun
2Mon5:184.85:595.311:170.111:490.26:308:00Waxing Gibbous2Mon
3Tue6:074.86:455.512:030.06:308:01Waxing Gibbous3Tue
4Wed6:514.87:275.612:390.212:450.06:298:02Waxing Gibbous4Wed
5Thu7:324.78:065.61:250.11:240.06:288:03Full Moon5Thu
6Fri8:114.78:435.62:080.12:020.16:278:03Full Moon6Fri
7Sat8:504.69:205.52:490.12:380.26:268:04Full Moon7Sat
8Sun9:294.59:565.43:270.23:130.36:258:05Full Moon8Sun
9Mon10:074.410:305.24:050.33:470.46:248:05Waning Gibbous9Mon
10Tue10:454.311:055.14:410.44:230.56:238:06Waning Gibbous10Tue
11Wed11:234.211:414.95:180.65:020.66:238:07Waning Gibbous11Wed
12Thu12:054.15:580.65:450.76:228:08Waning Gibbous12Thu
13Fri12:234.812:524.26:420.76:370.86:218:08Third Quarter13Fri
14Sat1:104.71:454.37:310.67:370.86:208:09Third Quarter14Sat
15Sun2:044.72:414.58:220.58:420.86:208:10Third Quarter15Sun
16Mon3:004.73:394.89:160.39:470.66:198:11Third Quarter16Mon
17Tue4:004.74:405.210:100.010:510.46:188:11Waning Crescent17Tue
18Wed5:024.75:395.611:05-0.211:530.16:188:12Waning Crescent18Wed
19Thu6:024.86:356.011:59-0.56:178:13Waning Crescent19Thu
20Fri7:004.97:306.212:51-0.112:53-0.76:168:13New Moon20Fri
21Sat7:555.08:246.41:47-0.41:47-0.86:168:14New Moon21Sat
22Sun8:525.09:206.42:42-0.52:41-0.86:158:15New Moon22Sun
23Mon9:515.010:166.33:36-0.63:35-0.86:158:15Waxing Crescent23Mon
24Tue10:504.911:136.14:29-0.54:30-0.66:148:16Waxing Crescent24Tue
25Wed11:504.95:22-0.45:26-0.36:148:17Waxing Crescent25Wed
26Thu12:105.812:514.96:17-0.26:250.06:138:17Waxing Crescent26Thu
27Fri1:075.51:514.97:13-0.17:280.26:138:18First Quarter27Fri
28Sat2:035.22:494.98:090.08:310.46:128:19First Quarter28Sat
29Sun2:564.93:445.09:020.19:320.56:128:19First Quarter29Sun
30Mon3:484.74:385.19:520.110:290.56:128:20Waxing Gibbous30Mon
31Tue4:394.55:285.210:400.111:230.46:118:20Waxing Gibbous31Tue
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 2:58 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 transitional phase. Tonight's moon is 75% 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 shifting between spring and neap.

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 (75% illuminated). This places South Dewees Island, SC in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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