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 2h 24m 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 - May 1994

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun1:165.51:414.77:160.07:260.46:318:00Third Quarter1Sun
2Mon2:145.22:404.78:140.28:300.66:308:01Third Quarter2Mon
3Tue3:105.03:374.79:090.39:320.66:298:01Third Quarter3Tue
4Wed4:034.84:324.810:010.310:300.66:288:02Waning Crescent4Wed
5Thu4:554.75:245.010:490.211:240.66:278:03Waning Crescent5Thu
6Fri5:444.76:105.211:340.26:268:04Waning Crescent6Fri
7Sat6:294.76:535.312:130.512:160.16:258:04Waning Crescent7Sat
8Sun7:114.77:325.512:580.412:560.16:258:05New Moon8Sun
9Mon7:524.78:105.51:400.31:340.16:248:06New Moon9Mon
10Tue8:314.68:465.52:200.22:110.16:238:07New Moon10Tue
11Wed9:104.59:205.52:580.32:470.16:228:07New Moon11Wed
12Thu9:484.49:535.43:340.33:240.26:218:08New Moon12Thu
13Fri10:234.310:265.34:100.44:010.26:218:09Waxing Crescent13Fri
14Sat10:594.211:025.24:460.44:410.36:208:10Waxing Crescent14Sat
15Sun11:384.211:445.25:260.55:260.46:198:10Waxing Crescent15Sun
16Mon12:254.36:090.56:170.56:198:11Waxing Crescent16Mon
17Tue12:335.11:204.46:590.47:170.56:188:12First Quarter17Tue
18Wed1:285.02:214.67:540.38:210.56:178:12First Quarter18Wed
19Thu2:295.03:234.98:510.19:270.36:178:13First Quarter19Thu
20Fri3:315.04:285.39:49-0.110:330.16:168:14Waxing Gibbous20Fri
21Sat4:365.05:315.710:47-0.311:36-0.16:158:14Waxing Gibbous21Sat
22Sun5:405.06:306.011:45-0.66:158:15Waxing Gibbous22Sun
23Mon6:415.17:266.312:36-0.412:40-0.76:148:16Full Moon23Mon
24Tue7:385.18:206.41:33-0.61:35-0.86:148:16Full Moon24Tue
25Wed8:355.19:156.42:28-0.72:29-0.86:138:17Full Moon25Wed
26Thu9:325.110:106.23:21-0.73:22-0.76:138:18Full Moon26Thu
27Fri10:295.011:046.04:13-0.64:14-0.56:138:18Waning Gibbous27Fri
28Sat11:254.911:575.75:04-0.55:07-0.26:128:19Waning Gibbous28Sat
29Sun12:214.85:55-0.36:020.16:128:20Waning Gibbous29Sun
30Mon12:495.41:174.76:48-0.17:010.46:128:20Third Quarter30Mon
31Tue1:415.12:124.77:400.18:010.66:118:21Third Quarter31Tue
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