Tides Today & Tomorrow in Fort Sumter, SC

TIDE TIMES for Sunday, June 28, 2026
The tide is currently rising in Fort Sumter, SC.
Next low tide : 1:25 pm (0.3 ft)
Next high tide : in 4h 25m at 7:26 am (4.3 ft)
Sunset today : 8:31 pm
Sunrise tomorrow : 6:14 am
Moon phase : Full Moon (98% illuminated)
Tide Station Location : Station #8665728
Common Questions About Tides

Fort Sumter, SC Tides - Mar 2050

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue2:104.82:364.28:350.58:380.36:466:16First Quarter1Tue
2Wed3:094.73:354.29:330.59:360.36:456:17Waxing Gibbous2Wed
3Thu4:064.74:314.310:270.510:310.26:446:18Waxing Gibbous3Thu
4Fri4:584.85:224.511:150.411:220.16:426:19Waxing Gibbous4Fri
5Sat5:444.96:074.711:590.26:416:19Waxing Gibbous5Sat
6Sun6:255.06:494.912:070.012:380.16:406:20Full Moon6Sun
7Mon7:035.17:285.012:50-0.11:140.06:396:21Full Moon7Mon
8Tue7:405.18:045.11:30-0.21:470.06:376:22Full Moon8Tue
9Wed8:145.08:385.12:08-0.22:19-0.16:366:23Full Moon9Wed
10Thu8:464.99:095.12:45-0.22:50-0.16:356:23Waning Gibbous10Thu
11Fri9:174.89:385.13:22-0.13:230.06:346:24Waning Gibbous11Fri
12Sat9:494.610:105.14:000.03:580.06:326:25Waning Gibbous12Sat
13Sun11:264.511:505.15:420.25:380.07:317:26Waning Gibbous13Sun
14Mon12:114.46:290.36:260.17:307:26Third Quarter14Mon
15Tue12:405.01:054.47:250.47:240.27:297:27Third Quarter15Tue
16Wed1:435.02:104.48:280.48:310.27:277:28Third Quarter16Wed
17Thu2:545.13:204.59:330.39:410.17:267:29Third Quarter17Thu
18Fri4:085.24:334.810:360.110:51-0.27:257:29Waning Crescent18Fri
19Sat5:195.45:425.211:37-0.211:56-0.57:237:30Waning Crescent19Sat
20Sun6:225.66:435.612:33-0.67:227:31Waning Crescent20Sun
21Mon7:175.87:386.012:57-0.81:25-0.97:217:31New Moon21Mon
22Tue8:095.98:316.21:53-1.02:16-1.17:197:32New Moon22Tue
23Wed9:005.99:226.32:47-1.13:04-1.17:187:33New Moon23Wed
24Thu9:505.710:126.33:39-1.03:52-1.07:177:34New Moon24Thu
25Fri10:395.411:016.14:30-0.84:38-0.87:157:34Waxing Crescent25Fri
26Sat11:295.111:515.85:20-0.55:25-0.57:147:35Waxing Crescent26Sat
27Sun12:204.86:11-0.16:14-0.17:137:36Waxing Crescent27Sun
28Mon12:425.41:134.67:050.37:070.37:117:36First Quarter28Mon
29Tue1:365.12:094.48:020.68:050.67:107:37First Quarter29Tue
30Wed2:314.93:054.39:000.79:040.77:097:38First Quarter30Wed
31Thu3:274.74:024.49:550.810:030.77:087:39First Quarter31Thu
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 10:25 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 98% 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 Full Moon (98% 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