Tides Today & Tomorrow in Fort Sumter, SC

TIDE TIMES for Tuesday, June 23, 2026
The tide is currently rising in Fort Sumter, SC.
Next low tide : 10:27 pm (0.6 ft)
Next high tide : in 1h 46m at 4:19 pm (5.2 ft)
Sunset today : 8:31 pm
Sunrise tomorrow : 6:12 am
Moon phase : First Quarter (67% illuminated)
Tide Station Location : Station #8665728
Common Questions About Tides

Fort Sumter, SC Tides - Apr 2043

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed12:414.81:054.07:191.07:000.87:077:39Third Quarter1Wed
2Thu1:344.72:004.08:151.18:000.97:057:40Third Quarter2Thu
3Fri2:374.73:014.09:141.09:070.87:047:40Third Quarter3Fri
4Sat3:434.84:064.310:120.810:150.67:037:41Third Quarter4Sat
5Sun4:485.05:094.611:080.511:200.37:017:42Waning Crescent5Sun
6Mon5:475.26:075.112:000.27:007:43Waning Crescent6Mon
7Tue6:395.46:595.612:200.012:49-0.26:597:43Waning Crescent7Tue
8Wed7:285.57:496.01:16-0.31:37-0.56:587:44New Moon8Wed
9Thu8:165.68:386.32:10-0.52:24-0.86:567:45New Moon9Thu
10Fri9:055.59:286.53:03-0.73:11-0.96:557:45New Moon10Fri
11Sat9:565.310:206.43:55-0.63:58-0.86:547:46Waxing Crescent11Sat
12Sun10:495.111:146.34:48-0.54:48-0.66:537:47Waxing Crescent12Sun
13Mon11:464.85:42-0.25:40-0.36:517:48Waxing Crescent13Mon
14Tue12:126.012:484.66:410.16:380.06:507:48First Quarter14Tue
15Wed1:165.61:534.57:440.47:430.36:497:49First Quarter15Wed
16Thu2:225.42:594.58:480.58:520.56:487:50First Quarter16Thu
17Fri3:265.24:034.69:500.69:580.56:477:50First Quarter17Fri
18Sat4:285.15:034.810:460.511:000.56:467:51Waxing Gibbous18Sat
19Sun5:245.05:575.011:370.411:560.46:447:52Waxing Gibbous19Sun
20Mon6:125.06:445.312:220.36:437:53Waxing Gibbous20Mon
21Tue6:545.07:255.512:460.31:030.26:427:53Waxing Gibbous21Tue
22Wed7:335.08:045.61:310.21:400.26:417:54Full Moon22Wed
23Thu8:104.98:405.72:140.12:150.26:407:55Full Moon23Thu
24Fri8:474.89:155.72:550.12:480.26:397:55Full Moon24Fri
25Sat9:234.79:485.63:330.23:200.36:387:56Full Moon25Sat
26Sun9:594.510:205.54:100.33:520.46:377:57Waning Gibbous26Sun
27Mon10:344.410:535.34:460.54:250.56:367:58Waning Gibbous27Mon
28Tue11:104.211:275.25:230.65:010.66:357:58Waning Gibbous28Tue
29Wed11:494.16:030.85:420.76:347:59Waning Gibbous29Wed
30Thu12:095.112:344.16:490.96:320.86:338:00Third Quarter30Thu
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 7:23 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 transitional phase. Tonight's moon is 67% 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 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 First Quarter (67% illuminated). This places Fort Sumter, 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