Tides Today & Tomorrow in Fort Sumter, SC

TIDE TIMES for Friday, June 19, 2026
The tide is currently rising in Fort Sumter, SC.
Next low tide (tomorrow) : 7:12 am (-0.1 ft)
Next high tide (tomorrow) : in 6h 10m at 12:55 am (5.5 ft)
Sunset today : 8:30 pm
Sunrise tomorrow : 6:11 am
Moon phase : Waxing Crescent (27% illuminated)
Tide Station Location : Station #8665728
Common Questions About Tides

Fort Sumter, SC Tides - Nov 2036

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat6:405.67:035.512:230.712:490.87:376:28Waxing Gibbous1Sat
2Sun6:215.86:435.61:040.512:340.66:385:27Full Moon2Sun
3Mon6:596.07:225.512:440.31:180.56:395:26Full Moon3Mon
4Tue7:376.28:005.51:240.22:020.46:405:25Full Moon4Tue
5Wed8:176.28:415.42:060.12:460.46:415:24Full Moon5Wed
6Thu8:596.39:265.32:490.03:320.46:425:24Waning Gibbous6Thu
7Fri9:466.210:165.23:350.14:210.56:435:23Waning Gibbous7Fri
8Sat10:396.111:145.14:250.25:140.66:445:22Waning Gibbous8Sat
9Sun11:396.05:200.36:130.66:445:21Third Quarter9Sun
10Mon12:205.012:445.96:220.47:150.66:455:21Third Quarter10Mon
11Tue1:285.11:505.87:290.48:170.56:465:20Third Quarter11Tue
12Wed2:345.32:545.88:360.49:170.36:475:19Third Quarter12Wed
13Thu3:395.63:565.89:410.210:130.16:485:19Waning Crescent13Thu
14Fri4:405.94:545.810:430.111:07-0.16:495:18Waning Crescent14Fri
15Sat5:356.25:465.811:40-0.111:57-0.26:505:18Waning Crescent15Sat
16Sun6:256.46:355.712:33-0.26:515:17New Moon16Sun
17Mon7:136.47:215.612:44-0.31:23-0.26:525:17New Moon17Mon
18Tue7:586.48:065.41:30-0.32:11-0.16:535:16New Moon18Tue
19Wed8:426.38:505.32:14-0.12:570.06:535:16New Moon19Wed
20Thu9:266.09:345.12:560.13:410.26:545:15Waxing Crescent20Thu
21Fri10:085.810:184.93:370.34:240.56:555:15Waxing Crescent21Fri
22Sat10:515.511:044.74:170.65:070.76:565:15Waxing Crescent22Sat
23Sun11:365.311:534.65:000.85:520.96:575:14Waxing Crescent23Sun
24Mon12:245.15:461.06:401.06:585:14First Quarter24Mon
25Tue12:444.51:134.96:391.27:291.06:595:14First Quarter25Tue
26Wed1:364.52:044.97:361.28:180.97:005:13First Quarter26Wed
27Thu2:294.62:554.88:341.29:050.87:015:13First Quarter27Thu
28Fri3:224.83:474.89:301.09:520.67:015:13Waxing Gibbous28Fri
29Sat4:145.04:374.910:250.810:390.47:025:13Waxing Gibbous29Sat
30Sun5:035.35:255.011:170.611:250.17:035:13Waxing Gibbous30Sun
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 4:03 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 transitional phase. Tonight's moon is 27% 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 Crescent (27% 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