Tides Today & Tomorrow in Fort Sumter, SC

TIDE TIMES for Tuesday, June 30, 2026
The tide is currently rising in Fort Sumter, SC.
Next low tide : 2:45 pm (0.3 ft)
Next high tide : in 4h 31m at 8:51 am (4.3 ft)
Sunset today : 8:31 pm
Sunrise tomorrow : 6:14 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #8665728
Common Questions About Tides

Fort Sumter, SC Tides - Oct 2052

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue2:094.82:505.38:071.49:071.57:147:03First Quarter1Tue
2Wed3:034.93:445.49:051.310:001.47:147:02First Quarter2Wed
3Thu3:585.04:385.610:031.210:511.27:157:00Waxing Gibbous3Thu
4Fri4:545.25:315.711:011.011:410.97:166:59Waxing Gibbous4Fri
5Sat5:475.56:205.911:570.77:176:58Waxing Gibbous5Sat
6Sun6:375.97:066.112:290.512:500.47:176:56Waxing Gibbous6Sun
7Mon7:246.27:516.21:160.21:420.27:186:55Full Moon7Mon
8Tue8:116.58:386.22:020.02:330.17:196:54Full Moon8Tue
9Wed9:006.79:276.12:49-0.23:240.07:196:53Full Moon9Wed
10Thu9:516.710:196.03:37-0.34:160.07:206:51Waning Gibbous10Thu
11Fri10:456.711:145.84:27-0.35:090.27:216:50Waning Gibbous11Fri
12Sat11:426.65:18-0.16:050.47:226:49Waning Gibbous12Sat
13Sun12:145.612:446.46:140.17:060.67:226:48Third Quarter13Sun
14Mon1:185.51:496.27:150.38:090.77:236:47Third Quarter14Mon
15Tue2:235.42:526.18:200.59:120.77:246:45Third Quarter15Tue
16Wed3:275.53:536.09:250.610:110.77:256:44Third Quarter16Wed
17Thu4:285.64:526.010:270.511:070.67:256:43Waning Crescent17Thu
18Fri5:275.85:465.911:260.511:580.57:266:42Waning Crescent18Fri
19Sat6:195.96:345.912:200.47:276:41Waning Crescent19Sat
20Sun7:066.17:175.912:450.41:100.47:286:40New Moon20Sun
21Mon7:496.27:575.81:280.41:560.47:286:39New Moon21Mon
22Tue8:306.28:365.72:090.42:400.47:296:37New Moon22Tue
23Wed9:096.19:155.52:470.43:210.57:306:36New Moon23Wed
24Thu9:476.09:535.43:230.54:010.77:316:35Waxing Crescent24Thu
25Fri10:255.910:325.23:580.74:400.87:326:34Waxing Crescent25Fri
26Sat11:025.711:115.04:320.85:181.07:326:33Waxing Crescent26Sat
27Sun11:405.611:514.95:071.05:571.27:336:32Waxing Crescent27Sun
28Mon12:205.45:461.16:411.37:346:31Waxing Crescent28Mon
29Tue12:364.81:075.36:321.27:291.37:356:30First Quarter29Tue
30Wed1:264.81:585.37:251.38:211.37:366:29First Quarter30Wed
31Thu2:194.82:525.38:251.29:141.17:376:29First Quarter31Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8665728)

Common Questions About Fort Sumter, SC Tides

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What time does the tide turn (slack tide) in Fort Sumter, SC today?

Slack tide in Fort Sumter, SC is approximately 11:48 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 Fort Sumter, SC?

Fort Sumter, SC is currently in a spring phase. Tonight's moon is 100% 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 Fort Sumter, 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 Fort Sumter, SC?

Tide predictions for Fort Sumter, 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 Fort Sumter, SC?

Tide data for Fort Sumter, SC is sourced from NOAA Station #8665728. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8665728.

What is the moon phase in Fort Sumter, SC tonight?

Tonight the moon over Fort Sumter, SC is Full Moon (100% illuminated). This places Fort Sumter, 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