Tides Today & Tomorrow in Fort Sumter, SC

TIDE TIMES for Sunday, July 26, 2026
The tide is currently rising in Fort Sumter, SC.
Next low tide (tomorrow) : 1:12 am (0.7 ft)
Next high tide : in 1h 28m at 6:56 pm (5.4 ft)
Sunset today : 8:22 pm
Sunrise tomorrow : 6:29 am
Moon phase : Waxing Gibbous (92% illuminated)
Tide Station Location : Station #8665728
Common Questions About Tides

Fort Sumter, SC Tides - Aug 2084

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue8:284.78:445.62:290.62:220.36:348:17New Moon1Tue
2Wed9:094.79:195.53:040.53:020.36:358:16New Moon2Wed
3Thu9:474.89:525.43:380.43:420.46:358:15New Moon3Thu
4Fri10:224.810:245.34:100.44:220.46:368:14Waxing Crescent4Fri
5Sat10:564.910:585.24:430.35:040.66:378:13Waxing Crescent5Sat
6Sun11:335.111:365.05:180.35:500.76:378:12Waxing Crescent6Sun
7Mon12:175.25:580.36:410.86:388:11First Quarter7Mon
8Tue12:224.91:105.36:450.27:410.96:398:11First Quarter8Tue
9Wed1:164.82:115.47:400.28:450.96:398:10First Quarter9Wed
10Thu2:174.73:185.68:410.29:510.86:408:09First Quarter10Thu
11Fri3:244.74:285.89:470.110:560.66:418:08Waxing Gibbous11Fri
12Sat4:364.85:376.010:530.011:580.36:418:06Waxing Gibbous12Sat
13Sun5:475.06:396.311:59-0.26:428:05Waxing Gibbous13Sun
14Mon6:515.37:356.512:560.01:00-0.46:438:04Full Moon14Mon
15Tue7:495.68:286.51:49-0.21:58-0.56:438:03Full Moon15Tue
16Wed8:455.89:186.42:40-0.42:54-0.56:448:02Full Moon16Wed
17Thu9:405.910:086.23:28-0.53:47-0.46:458:01Waning Gibbous17Thu
18Fri10:326.010:555.94:15-0.54:39-0.16:458:00Waning Gibbous18Fri
19Sat11:235.911:425.65:00-0.35:300.26:467:59Waning Gibbous19Sat
20Sun12:135.85:44-0.16:230.66:477:58Waning Gibbous20Sun
21Mon12:305.21:045.66:310.27:180.96:477:56Third Quarter21Mon
22Tue1:194.91:555.57:190.58:161.26:487:55Third Quarter22Tue
23Wed2:104.72:475.48:110.79:131.36:497:54Third Quarter23Wed
24Thu3:034.53:395.39:040.810:081.46:497:53Third Quarter24Thu
25Fri3:564.54:335.39:570.911:001.36:507:52Waning Crescent25Fri
26Sat4:514.65:255.410:500.911:491.26:517:50Waning Crescent26Sat
27Sun5:454.76:135.511:410.86:517:49Waning Crescent27Sun
28Mon6:344.96:565.712:331.112:290.76:527:48Waning Crescent28Mon
29Tue7:185.07:365.71:140.91:140.66:537:47New Moon29Tue
30Wed8:005.28:135.71:510.81:570.56:537:45New Moon30Wed
31Thu8:385.38:485.72:270.62:390.56:547:44New Moon31Thu
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 10:04 pm — 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 92% 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 Waxing Gibbous (92% 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