Tides Today & Tomorrow in Fort Sumter, SC

TIDE TIMES for Wednesday, June 24, 2026
The tide is currently rising in Fort Sumter, SC.
Next low tide : 11:21 pm (0.6 ft)
Next high tide : in 6h 04m at 5:09 pm (5.3 ft)
Sunset today : 8:31 pm
Sunrise tomorrow : 6:12 am
Moon phase : Waxing Gibbous (76% illuminated)
Tide Station Location : Station #8665728
Common Questions About Tides

Fort Sumter, SC Tides - Sep 2044

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu3:384.54:305.39:431.210:491.46:547:43Waxing Gibbous1Thu
2Fri4:334.55:245.410:371.111:391.36:557:42Waxing Gibbous2Fri
3Sat5:284.66:135.611:301.06:567:41Waxing Gibbous3Sat
4Sun6:194.86:565.712:241.112:190.96:567:39Waxing Gibbous4Sun
5Mon7:045.07:365.81:061.01:050.76:577:38Full Moon5Mon
6Tue7:455.28:145.81:450.81:480.66:587:37Full Moon6Tue
7Wed8:245.48:495.82:210.62:310.66:587:35Full Moon7Wed
8Thu9:015.69:235.72:580.53:140.66:597:34Full Moon8Thu
9Fri9:385.79:585.53:340.43:570.66:597:33Waning Gibbous9Fri
10Sat10:175.910:365.44:120.34:420.77:007:31Waning Gibbous10Sat
11Sun11:005.911:205.24:520.35:310.97:017:30Waning Gibbous11Sun
12Mon11:506.05:360.46:251.07:017:29Waning Gibbous12Mon
13Tue12:115.012:495.96:280.57:271.27:027:27Third Quarter13Tue
14Wed1:134.81:565.97:280.68:351.27:037:26Third Quarter14Wed
15Thu2:234.83:075.98:340.69:421.27:037:25Third Quarter15Thu
16Fri3:364.94:186.09:430.510:471.07:047:23Waning Crescent16Fri
17Sat4:485.15:256.210:500.411:460.77:057:22Waning Crescent17Sat
18Sun5:535.46:246.311:530.27:057:21Waning Crescent18Sun
19Mon6:515.87:156.412:400.412:520.17:067:19Waning Crescent19Mon
20Tue7:446.18:026.31:290.21:460.07:067:18New Moon20Tue
21Wed8:336.38:476.22:150.12:380.07:077:16New Moon21Wed
22Thu9:206.39:306.02:590.13:270.17:087:15New Moon22Thu
23Fri10:066.310:135.73:410.24:140.47:087:14Waxing Crescent23Fri
24Sat10:506.210:555.44:210.45:000.77:097:12Waxing Crescent24Sat
25Sun11:336.011:385.14:590.65:461.07:107:11Waxing Crescent25Sun
26Mon12:195.85:390.96:341.37:107:10Waxing Crescent26Mon
27Tue12:234.91:075.56:211.27:251.57:117:08First Quarter27Tue
28Wed1:134.71:595.47:091.48:201.77:127:07First Quarter28Wed
29Thu2:074.62:535.38:041.59:141.77:127:06First Quarter29Thu
30Fri3:024.63:485.39:021.510:061.67:137:04First Quarter30Fri
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 8:15 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 76% 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 Waxing Gibbous (76% 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