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 : 6:28 pm (0.0 ft)
Next high tide : in 2h 08m at 12:41 pm (5.0 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 - Mar 2024

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri11:104.111:364.75:250.55:160.36:466:17Third Quarter1Fri
2Sat11:554.06:160.76:050.46:456:17Third Quarter2Sat
3Sun12:294.712:513.97:160.87:050.46:436:18Third Quarter3Sun
4Mon1:344.71:563.98:220.88:130.36:426:19Third Quarter4Mon
5Tue2:494.83:084.09:270.69:230.16:416:20Waning Crescent5Tue
6Wed4:045.14:214.310:300.310:32-0.26:406:21Waning Crescent6Wed
7Thu5:105.45:254.811:27-0.111:35-0.56:386:21Waning Crescent7Thu
8Fri6:065.76:215.212:19-0.56:376:22Waning Crescent8Fri
9Sat6:585.97:145.612:33-0.91:09-0.86:366:23New Moon9Sat
10Sun8:486.09:065.91:28-1.12:56-1.17:357:24New Moon10Sun
11Mon9:375.99:576.13:21-1.13:43-1.17:337:24New Moon11Mon
12Tue10:265.610:486.14:13-1.04:29-1.07:327:25Waxing Crescent12Tue
13Wed11:155.311:405.95:05-0.75:15-0.87:317:26Waxing Crescent13Wed
14Thu12:064.95:59-0.46:03-0.47:297:27Waxing Crescent14Thu
15Fri12:335.61:014.56:560.16:56-0.17:287:27First Quarter15Fri
16Sat1:315.32:004.27:580.47:550.37:277:28First Quarter16Sat
17Sun2:325.03:014.19:020.68:580.57:267:29First Quarter17Sun
18Mon3:344.84:044.110:040.810:020.67:247:29First Quarter18Mon
19Tue4:374.75:054.211:020.711:020.67:237:30Waxing Gibbous19Tue
20Wed5:354.85:594.411:540.711:570.47:227:31Waxing Gibbous20Wed
21Thu6:244.96:474.612:390.57:207:32Waxing Gibbous21Thu
22Fri7:065.07:294.812:460.31:190.47:197:32Waxing Gibbous22Fri
23Sat7:455.08:095.01:300.21:560.37:187:33Full Moon23Sat
24Sun8:215.08:455.22:120.12:290.27:167:34Full Moon24Sun
25Mon8:555.09:205.22:510.03:000.27:157:34Full Moon25Mon
26Tue9:284.99:515.33:280.13:290.27:147:35Full Moon26Tue
27Wed10:004.710:205.24:050.13:590.27:127:36Waning Gibbous27Wed
28Thu10:314.510:485.24:420.34:310.37:117:37Waning Gibbous28Thu
29Fri11:034.411:225.25:200.45:060.37:107:37Waning Gibbous29Fri
30Sat11:424.26:030.65:480.47:087:38Waning Gibbous30Sat
31Sun12:065.112:304.26:530.76:390.57:077:39Third Quarter31Sun
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 3:34 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 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