Tides Today & Tomorrow in Fort Sumter, SC

TIDE TIMES for Monday, June 22, 2026
The tide is currently rising in Fort Sumter, SC.
Next low tide (tomorrow) : 9:42 am (0.1 ft)
Next high tide (tomorrow) : in 3h 31m at 3:26 am (4.6 ft)
Sunset today : 8:30 pm
Sunrise tomorrow : 6:12 am
Moon phase : First Quarter (58% illuminated)
Tide Station Location : Station #8665728
Common Questions About Tides

Fort Sumter, SC Tides - Mar 2042

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat3:504.94:154.110:130.510:110.26:466:16Waxing Gibbous1Sat
2Sun4:514.95:124.211:090.411:070.16:456:17Waxing Gibbous2Sun
3Mon5:435.06:014.411:570.311:580.06:446:18Waxing Gibbous3Mon
4Tue6:265.06:444.612:400.26:436:19Waxing Gibbous4Tue
5Wed7:055.17:254.812:44-0.11:180.16:416:19Full Moon5Wed
6Thu7:415.18:034.91:26-0.21:540.06:406:20Full Moon6Thu
7Fri8:165.08:394.92:05-0.22:250.06:396:21Full Moon7Fri
8Sat8:494.99:124.92:43-0.12:550.16:386:22Full Moon8Sat
9Sun10:204.710:434.94:190.04:230.27:367:23Waning Gibbous9Sun
10Mon10:514.511:124.94:550.24:520.27:357:23Waning Gibbous10Mon
11Tue11:234.311:434.85:320.45:240.37:347:24Waning Gibbous11Tue
12Wed11:594.26:140.66:020.47:327:25Waning Gibbous12Wed
13Thu12:224.812:434.07:020.76:480.57:317:26Third Quarter13Thu
14Fri1:124.81:363.98:000.97:470.57:307:26Third Quarter14Fri
15Sat2:154.82:404.09:030.88:540.57:297:27Third Quarter15Sat
16Sun3:274.83:504.110:080.710:040.37:277:28Third Quarter16Sun
17Mon4:425.05:014.411:100.411:130.07:267:28Waning Crescent17Mon
18Tue5:495.36:064.812:070.17:257:29Waning Crescent18Tue
19Wed6:475.67:035.312:17-0.31:00-0.47:237:30Waning Crescent19Wed
20Thu7:395.97:565.71:16-0.71:49-0.77:227:31New Moon20Thu
21Fri8:285.98:486.12:11-0.92:37-1.07:217:31New Moon21Fri
22Sat9:185.99:396.23:05-1.03:24-1.17:197:32New Moon22Sat
23Sun10:075.610:306.23:57-1.04:10-1.07:187:33Waxing Crescent23Sun
24Mon10:575.311:216.14:50-0.74:57-0.87:177:34Waxing Crescent24Mon
25Tue11:495.05:43-0.45:46-0.47:157:34Waxing Crescent25Tue
26Wed12:155.812:454.66:390.06:39-0.17:147:35First Quarter26Wed
27Thu1:135.51:454.37:410.47:380.37:137:36First Quarter27Thu
28Fri2:155.22:474.28:450.68:420.57:127:36First Quarter28Fri
29Sat3:185.03:504.29:470.79:470.67:107:37First Quarter29Sat
30Sun4:214.84:514.310:460.710:480.67:097:38Waxing Gibbous30Sun
31Mon5:194.85:474.511:380.711:450.57:087:38Waxing Gibbous31Mon
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 6:34 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 neap phase. Tonight's moon is 58% 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 minimum.

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 (58% illuminated). This places Fort Sumter, SC in a neap tide cycle, so tidal ranges are near their weekly minimum 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