Tides Today & Tomorrow in Fort Sumter, SC

TIDE TIMES for Wednesday, July 15, 2026
The tide is currently rising in Fort Sumter, SC.
Next low tide (tomorrow) : 4:14 am (-0.4 ft)
Next high tide : in 1h 58m at 9:55 pm (6.3 ft)
Sunset today : 8:28 pm
Sunrise tomorrow : 6:22 am
Moon phase : New Moon (2% illuminated)
Tide Station Location : Station #8665728
Common Questions About Tides

Fort Sumter, SC Tides - Dec 2074

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat6:175.66:345.012:340.47:045:13Full Moon1Sat
2Sun6:555.77:144.912:330.11:160.37:045:13Full Moon2Sun
3Mon7:335.77:534.81:110.11:560.37:055:13Full Moon3Mon
4Tue8:095.68:324.71:480.12:330.47:065:13Full Moon4Tue
5Wed8:455.69:094.62:240.23:090.57:075:13Waning Gibbous5Wed
6Thu9:195.49:454.43:010.23:440.57:085:13Waning Gibbous6Thu
7Fri9:535.310:204.33:380.34:200.67:085:13Waning Gibbous7Fri
8Sat10:295.210:594.34:180.45:000.77:095:13Waning Gibbous8Sat
9Sun11:125.211:464.35:030.55:440.67:105:13Waning Gibbous9Sun
10Mon12:015.15:550.56:350.67:115:13Third Quarter10Mon
11Tue12:414.512:565.06:550.67:300.47:115:13Third Quarter11Tue
12Wed1:414.71:555.07:590.58:260.27:125:14Third Quarter12Wed
13Thu2:445.02:575.09:050.39:24-0.17:135:14Waning Crescent13Thu
14Fri3:495.34:015.110:090.110:22-0.47:135:14Waning Crescent14Fri
15Sat4:515.75:035.211:11-0.211:19-0.77:145:15Waning Crescent15Sat
16Sun5:506.16:015.312:09-0.57:155:15Waning Crescent16Sun
17Mon6:456.46:575.312:14-0.91:05-0.77:155:15New Moon17Mon
18Tue7:406.57:535.31:08-1.11:59-0.97:165:16New Moon18Tue
19Wed8:356.58:505.22:02-1.12:52-0.97:165:16New Moon19Wed
20Thu9:306.39:465.12:55-1.03:44-0.87:175:17Waxing Crescent20Thu
21Fri10:256.010:435.03:48-0.84:35-0.67:175:17Waxing Crescent21Fri
22Sat11:195.711:404.84:42-0.55:28-0.37:185:18Waxing Crescent22Sat
23Sun12:135.45:39-0.16:22-0.17:185:18First Quarter23Sun
24Mon12:384.71:075.06:400.27:170.07:195:19First Quarter24Mon
25Tue1:354.71:594.87:420.48:100.17:195:19First Quarter25Tue
26Wed2:304.72:514.68:420.59:000.17:205:20First Quarter26Wed
27Thu3:244.73:434.49:400.59:490.17:205:21Waxing Gibbous27Thu
28Fri4:164.94:334.410:340.510:360.17:205:21Waxing Gibbous28Fri
29Sat5:045.05:214.411:230.411:200.07:215:22Waxing Gibbous29Sat
30Sun5:495.16:064.412:090.27:215:23Waxing Gibbous30Sun
31Mon6:305.26:494.512:03-0.112:510.17:215:23Full Moon31Mon
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 1:04 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 2% 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 New Moon (2% 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