Tides Today & Tomorrow in South Dewees Island, SC

TIDE TIMES for Thursday, June 25, 2026
The tide is currently falling in South Dewees Island, SC.
Next low tide : in 1h 18m at 11:55 pm (0.5 ft)
Next high tide (tomorrow) : 5:51 am (4.1 ft)
Sunset today : 8:30 pm
Sunrise tomorrow : 6:12 am
Moon phase : Waxing Gibbous (84% illuminated)
Tide Station Location : Station #8665111
Common Questions About Tides

South Dewees Island, SC Tides - Mar 2045

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed6:035.66:305.112:06-0.56:456:16Waxing Gibbous1Wed
2Thu6:555.77:225.412:20-1.012:56-0.86:446:17Full Moon2Thu
3Fri7:445.78:135.61:14-1.11:43-0.96:436:17Full Moon3Fri
4Sat8:315.69:025.72:06-1.12:28-0.96:426:18Full Moon4Sat
5Sun9:175.39:495.62:56-0.93:11-0.86:406:19Waning Gibbous5Sun
6Mon10:015.010:365.43:45-0.63:53-0.56:396:20Waning Gibbous6Mon
7Tue10:464.611:245.24:34-0.34:36-0.26:386:21Waning Gibbous7Tue
8Wed11:334.35:260.15:220.26:376:21Third Quarter8Wed
9Thu12:154.912:244.06:210.56:130.56:356:22Third Quarter9Thu
10Fri1:104.61:193.87:190.77:110.76:346:23Third Quarter10Fri
11Sat2:074.42:173.88:170.88:120.86:336:24Third Quarter11Sat
12Sun4:074.44:173.810:140.810:130.87:327:24Waning Crescent12Sun
13Mon5:054.45:164.011:070.711:090.67:307:25Waning Crescent13Mon
14Tue5:584.66:084.211:540.67:297:26Waning Crescent14Tue
15Wed6:444.76:544.412:000.512:360.47:287:27Waning Crescent15Wed
16Thu7:254.87:354.712:460.31:140.27:267:27Waning Crescent16Thu
17Fri8:024.98:134.91:290.11:500.17:257:28New Moon17Fri
18Sat8:384.88:475.12:090.02:240.07:247:29New Moon18Sat
19Sun9:114.89:205.22:490.02:58-0.17:227:30New Moon19Sun
20Mon9:434.69:535.33:280.03:33-0.17:217:30Waxing Crescent20Mon
21Tue10:164.510:295.34:080.04:10-0.17:207:31Waxing Crescent21Tue
22Wed10:534.411:105.34:510.14:50-0.17:187:32Waxing Crescent22Wed
23Thu11:384.25:380.35:370.07:177:32Waxing Crescent23Thu
24Fri12:005.212:324.16:320.56:330.17:167:33First Quarter24Fri
25Sat1:015.11:394.17:360.67:380.27:157:34First Quarter25Sat
26Sun2:125.12:544.18:440.68:490.27:137:35First Quarter26Sun
27Mon3:275.14:094.39:500.410:000.17:127:35First Quarter27Mon
28Tue4:405.25:194.710:520.211:07-0.27:117:36Waxing Gibbous28Tue
29Wed5:455.36:205.111:49-0.17:097:37Waxing Gibbous29Wed
30Thu6:415.57:145.512:09-0.412:41-0.47:087:37Waxing Gibbous30Thu
31Fri7:325.58:035.81:06-0.61:29-0.67:077:38Full Moon31Fri
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 2:53 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 84% 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 (84% 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