Tides Today & Tomorrow in Fort Sumter, SC

TIDE TIMES for Thursday, July 9, 2026
The tide is currently falling in Fort Sumter, SC.
Next low tide : in 37m at 10:29 pm (0.6 ft)
Next high tide (tomorrow) : 4:09 am (4.5 ft)
Sunset today : 8:30 pm
Sunrise tomorrow : 6:19 am
Moon phase : Waning Crescent (30% illuminated)
Tide Station Location : Station #8665728
Common Questions About Tides

Fort Sumter, SC Tides - Nov 2068

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu12:085.012:435.76:220.87:180.97:386:28First Quarter1Thu
2Fri1:075.01:445.77:230.88:170.87:386:27First Quarter2Fri
3Sat2:125.22:485.78:300.89:160.67:396:26First Quarter3Sat
4Sun2:185.42:525.78:380.69:140.36:405:25Waxing Gibbous4Sun
5Mon3:245.83:555.89:440.410:110.06:415:24Waxing Gibbous5Mon
6Tue4:286.14:565.910:480.211:06-0.36:425:23Waxing Gibbous6Tue
7Wed5:276.55:525.911:470.011:59-0.56:435:23Waxing Gibbous7Wed
8Thu6:226.86:465.912:44-0.26:445:22Full Moon8Thu
9Fri7:156.97:395.812:51-0.61:38-0.36:455:21Full Moon9Fri
10Sat8:076.88:325.71:42-0.62:30-0.26:455:20Full Moon10Sat
11Sun8:596.79:245.52:33-0.53:210.06:465:20Waning Gibbous11Sun
12Mon9:506.410:175.33:22-0.24:100.26:475:19Waning Gibbous12Mon
13Tue10:416.111:105.14:120.15:000.56:485:19Waning Gibbous13Tue
14Wed11:325.75:030.45:520.76:495:18Waning Gibbous14Wed
15Thu12:055.012:235.45:570.76:450.96:505:17Third Quarter15Thu
16Fri1:004.91:145.26:551.07:371.06:515:17Third Quarter16Fri
17Sat1:534.92:045.07:531.18:271.06:525:16Third Quarter17Sat
18Sun2:464.92:544.98:491.19:140.96:535:16Third Quarter18Sun
19Mon3:385.13:444.99:431.09:590.86:545:16Waning Crescent19Mon
20Tue4:285.24:334.910:340.910:420.76:545:15Waning Crescent20Tue
21Wed5:155.45:204.911:220.811:230.66:555:15Waning Crescent21Wed
22Thu5:585.66:034.912:070.66:565:14Waning Crescent22Thu
23Fri6:395.76:444.912:030.412:500.56:575:14New Moon23Fri
24Sat7:175.87:234.912:430.31:320.46:585:14New Moon24Sat
25Sun7:555.88:014.91:220.22:120.36:595:14New Moon25Sun
26Mon8:325.88:394.92:030.12:530.37:005:13New Moon26Mon
27Tue9:095.89:204.82:450.13:340.37:015:13Waxing Crescent27Tue
28Wed9:505.710:054.93:290.14:170.37:025:13Waxing Crescent28Wed
29Thu10:355.610:564.94:160.25:040.37:025:13Waxing Crescent29Thu
30Fri11:275.511:555.05:090.35:560.27:035:13First Quarter30Fri
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 1:19 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 transitional phase. Tonight's moon is 30% 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 Waning Crescent (30% 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