Tides Today & Tomorrow in Fort Sumter, SC

TIDE TIMES for Wednesday, July 15, 2026
The tide is currently falling in Fort Sumter, SC.
Next low tide : in 4m at 3:25 pm (-0.7 ft)
Next high tide : 9:55 pm (6.3 ft)
Sunset today : 8:28 pm
Sunrise tomorrow : 6:22 am
Moon phase : New Moon (2% illuminated)
Tide Station Location : Station #8665728
Common Questions About Tides

Fort Sumter, SC Tides - Aug 2074

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed2:465.13:455.79:09-0.210:050.36:348:17First Quarter1Wed
2Thu3:505.04:505.910:10-0.211:090.26:348:17Waxing Gibbous2Thu
3Fri4:564.95:536.111:11-0.36:358:16Waxing Gibbous3Fri
4Sat6:015.06:516.312:090.112:11-0.46:368:15Waxing Gibbous4Sat
5Sun7:015.17:456.41:06-0.11:08-0.46:368:14Full Moon5Sun
6Mon7:565.28:366.31:59-0.22:03-0.46:378:13Full Moon6Mon
7Tue8:495.39:256.22:50-0.32:55-0.36:388:12Full Moon7Tue
8Wed9:415.310:126.03:37-0.33:45-0.26:388:11Full Moon8Wed
9Thu10:305.310:565.84:22-0.24:320.16:398:10Waning Gibbous9Thu
10Fri11:175.211:395.55:040.05:190.46:408:09Waning Gibbous10Fri
11Sat12:035.25:460.26:050.76:408:08Waning Gibbous11Sat
12Sun12:215.212:495.16:270.46:551.06:418:07Waning Gibbous12Sun
13Mon1:064.91:365.17:100.67:471.26:428:06Third Quarter13Mon
14Tue1:524.72:245.17:550.78:421.36:428:05Third Quarter14Tue
15Wed2:414.63:135.18:420.89:361.36:438:04Third Quarter15Wed
16Thu3:324.54:045.29:310.810:291.36:448:03Third Quarter16Thu
17Fri4:254.54:575.310:210.711:211.26:448:02Waning Crescent17Fri
18Sat5:194.55:485.511:120.66:458:01Waning Crescent18Sat
19Sun6:114.76:355.712:101.012:030.56:467:59Waning Crescent19Sun
20Mon6:584.87:195.912:560.812:510.36:467:58Waning Crescent20Mon
21Tue7:435.08:016.01:390.61:390.16:477:57New Moon21Tue
22Wed8:265.28:426.12:210.42:260.06:487:56New Moon22Wed
23Thu9:095.49:246.13:030.23:13-0.16:487:55New Moon23Thu
24Fri9:545.510:076.03:450.04:01-0.16:497:54Waxing Crescent24Fri
25Sat10:415.610:525.94:28-0.14:510.06:507:52Waxing Crescent25Sat
26Sun11:325.711:415.75:12-0.15:430.26:507:51Waxing Crescent26Sun
27Mon12:275.86:000.06:400.46:517:50Waxing Crescent27Mon
28Tue12:365.51:275.96:530.17:430.56:527:49First Quarter28Tue
29Wed1:355.32:315.97:510.28:480.66:527:47First Quarter29Wed
30Thu2:385.23:356.08:530.29:520.66:537:46First Quarter30Thu
31Fri3:435.14:406.19:560.210:550.56:547:45Waxing Gibbous31Fri
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 6:40 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 2% 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 New Moon (2% 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