Tides Today & Tomorrow in Fort Sumter, SC

TIDE TIMES for Monday, July 6, 2026
The tide is currently falling in Fort Sumter, SC.
Next low tide : in 1h 51m at 6:51 am (0.1 ft)
Next high tide : 12:58 pm (4.8 ft)
Sunset today : 8:31 pm
Sunrise tomorrow : 6:17 am
Moon phase : Third Quarter (62% illuminated)
Tide Station Location : Station #8665728
Common Questions About Tides

Fort Sumter, SC Tides - Oct 2062

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun7:276.27:456.31:100.21:310.07:137:04New Moon1Sun
2Mon8:166.48:306.21:570.12:230.07:147:02New Moon2Mon
3Tue9:046.59:146.02:410.03:130.17:157:01New Moon3Tue
4Wed9:506.59:585.73:240.14:010.37:167:00Waxing Crescent4Wed
5Thu10:356.410:415.44:050.34:470.67:166:58Waxing Crescent5Thu
6Fri11:196.111:255.14:450.65:330.97:176:57Waxing Crescent6Fri
7Sat12:055.95:250.96:211.27:186:56Waxing Crescent7Sat
8Sun12:114.912:535.66:081.17:121.57:186:54First Quarter8Sun
9Mon1:014.71:465.46:561.48:061.67:196:53First Quarter9Mon
10Tue1:554.62:405.37:511.59:001.77:206:52First Quarter10Tue
11Wed2:504.63:345.38:501.69:521.67:206:51First Quarter11Wed
12Thu3:464.74:275.49:481.510:411.57:216:50Waxing Gibbous12Thu
13Fri4:414.95:175.510:441.411:261.37:226:48Waxing Gibbous13Fri
14Sat5:335.16:035.611:361.27:236:47Waxing Gibbous14Sat
15Sun6:195.46:455.612:081.112:251.07:236:46Waxing Gibbous15Sun
16Mon7:015.77:245.712:480.81:120.87:246:45Full Moon16Mon
17Tue7:416.08:025.61:270.61:570.77:256:44Full Moon17Tue
18Wed8:196.28:405.52:060.42:430.67:266:42Full Moon18Wed
19Thu8:586.39:205.42:460.33:280.67:266:41Full Moon19Thu
20Fri9:416.410:045.33:290.24:150.77:276:40Waning Gibbous20Fri
21Sat10:286.410:535.14:130.35:040.87:286:39Waning Gibbous21Sat
22Sun11:216.311:505.05:020.35:580.97:296:38Waning Gibbous22Sun
23Mon12:226.15:560.56:581.17:306:37Third Quarter23Mon
24Tue12:564.91:306.06:580.68:031.17:306:36Third Quarter24Tue
25Wed2:074.92:395.98:060.79:071.07:316:35Third Quarter25Wed
26Thu3:165.13:455.99:160.710:070.87:326:34Third Quarter26Thu
27Fri4:235.44:465.910:220.611:040.67:336:33Waning Crescent27Fri
28Sat5:255.75:435.911:250.411:550.37:346:32Waning Crescent28Sat
29Sun6:206.06:345.912:230.37:356:31Waning Crescent29Sun
30Mon7:106.37:205.812:430.21:160.27:356:30New Moon30Mon
31Tue7:566.58:045.71:290.12:060.27:366:29New Moon31Tue
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 9:54 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 62% 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 Third Quarter (62% 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