Tides Today & Tomorrow in Fort Sumter, SC

TIDE TIMES for Friday, June 26, 2026
The tide is currently falling in Fort Sumter, SC.
Next low tide : in 3h 10m at 11:59 am (0.3 ft)
Next high tide : 6:41 pm (5.5 ft)
Sunset today : 8:31 pm
Sunrise tomorrow : 6:13 am
Moon phase : Waxing Gibbous (90% illuminated)
Tide Station Location : Station #8665728
Common Questions About Tides

Fort Sumter, SC Tides - Aug 2047

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu4:084.65:115.910:23-0.111:280.46:338:18Waxing Gibbous1Thu
2Fri5:154.76:136.011:26-0.16:348:17Waxing Gibbous2Fri
3Sat6:194.87:086.112:260.212:25-0.26:348:16Waxing Gibbous3Sat
4Sun7:164.97:586.11:200.11:21-0.26:358:15Full Moon4Sun
5Mon8:085.18:456.02:100.02:14-0.26:368:14Full Moon5Mon
6Tue8:585.29:295.92:56-0.13:03-0.16:378:13Full Moon6Tue
7Wed9:455.210:115.73:39-0.13:500.16:378:12Full Moon7Wed
8Thu10:305.210:505.44:200.04:340.36:388:11Waning Gibbous8Thu
9Fri11:135.211:295.24:580.25:170.66:398:11Waning Gibbous9Fri
10Sat11:555.15:350.36:010.96:398:10Waning Gibbous10Sat
11Sun12:094.912:385.16:120.56:471.16:408:09Waning Gibbous11Sun
12Mon12:524.71:235.06:520.77:381.36:418:08Third Quarter12Mon
13Tue1:384.52:115.07:360.88:321.46:418:06Third Quarter13Tue
14Wed2:284.33:025.18:250.89:281.56:428:05Third Quarter14Wed
15Thu3:204.33:555.19:170.810:231.46:438:04Third Quarter15Thu
16Fri4:154.34:515.310:110.711:161.26:438:03Waning Crescent16Fri
17Sat5:124.45:445.511:060.66:448:02Waning Crescent17Sat
18Sun6:054.66:335.712:061.012:000.46:458:01Waning Crescent18Sun
19Mon6:544.97:175.912:530.812:520.26:458:00New Moon19Mon
20Tue7:415.18:006.11:370.51:420.06:467:59New Moon20Tue
21Wed8:265.48:436.12:200.22:32-0.16:477:58New Moon21Wed
22Thu9:135.69:276.13:030.03:21-0.26:477:56New Moon22Thu
23Fri10:015.810:125.93:46-0.24:12-0.16:487:55Waxing Crescent23Fri
24Sat10:516.011:005.74:30-0.35:030.06:497:54Waxing Crescent24Sat
25Sun11:456.011:525.55:17-0.25:580.36:497:53Waxing Crescent25Sun
26Mon12:436.06:07-0.16:580.56:507:52First Quarter26Mon
27Tue12:505.21:476.07:020.18:020.76:517:50First Quarter27Tue
28Wed1:525.02:525.98:040.29:080.86:517:49First Quarter28Wed
29Thu2:574.93:575.99:080.310:110.86:527:48First Quarter29Thu
30Fri4:034.95:016.010:130.411:120.76:537:47Waxing Gibbous30Fri
31Sat5:095.06:006.011:160.36:537:45Waxing Gibbous31Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8665728)

Common Questions About Fort Sumter, SC Tides

Show All
What time does the tide turn (slack tide) in Fort Sumter, SC today?

Slack tide in Fort Sumter, SC is approximately 3:20 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 spring phase. Tonight's moon is 90% 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 Waxing Gibbous (90% 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