Tides Today & Tomorrow in Fort Sumter, SC

TIDE TIMES for Wednesday, July 8, 2026
The tide is currently rising in Fort Sumter, SC.
Next low tide : 9:22 pm (0.7 ft)
Next high tide : in 4h 17m at 2:50 pm (5.3 ft)
Sunset today : 8:30 pm
Sunrise tomorrow : 6:18 am
Moon phase : Third Quarter (41% illuminated)
Tide Station Location : Station #8665728
Common Questions About Tides

Fort Sumter, SC Tides - Sep 2066

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed5:585.46:436.412:070.06:547:44Waxing Gibbous1Wed
2Thu6:585.77:356.412:540.11:06-0.26:557:42Full Moon2Thu
3Fri7:525.98:246.41:44-0.12:01-0.26:557:41Full Moon3Fri
4Sat8:436.19:116.32:32-0.22:54-0.26:567:40Full Moon4Sat
5Sun9:336.29:566.03:18-0.23:440.06:577:38Full Moon5Sun
6Mon10:206.110:415.74:01-0.14:320.36:577:37Waning Gibbous6Mon
7Tue11:066.011:255.44:430.15:190.66:587:36Waning Gibbous7Tue
8Wed11:515.85:250.46:070.96:597:34Waning Gibbous8Wed
9Thu12:105.112:385.66:080.66:571.26:597:33Third Quarter9Thu
10Fri12:574.91:275.56:530.97:511.57:007:32Third Quarter10Fri
11Sat1:484.72:195.47:441.18:461.67:017:30Third Quarter11Sat
12Sun2:414.63:115.38:371.29:401.67:017:29Third Quarter12Sun
13Mon3:354.64:055.49:321.210:321.67:027:28Third Quarter13Mon
14Tue4:304.74:585.510:261.111:201.47:027:26Waning Crescent14Tue
15Wed5:244.95:485.611:191.07:037:25Waning Crescent15Wed
16Thu6:145.16:325.712:041.212:090.87:047:24Waning Crescent16Thu
17Fri6:585.47:135.812:451.012:560.77:047:22Waning Crescent17Fri
18Sat7:405.67:515.91:240.81:420.57:057:21New Moon18Sat
19Sun8:195.88:285.82:020.62:270.57:067:20New Moon19Sun
20Mon8:576.09:065.82:410.43:120.47:067:18New Moon20Mon
21Tue9:376.19:465.73:200.33:580.57:077:17Waxing Crescent21Tue
22Wed10:206.210:305.54:010.34:450.67:087:16Waxing Crescent22Wed
23Thu11:086.211:195.44:460.35:360.77:087:14Waxing Crescent23Thu
24Fri12:036.15:340.46:320.97:097:13Waxing Crescent24Fri
25Sat12:165.21:076.06:300.57:341.07:107:12First Quarter25Sat
26Sun1:215.12:166.07:330.68:391.07:107:10First Quarter26Sun
27Mon2:305.13:246.08:420.79:420.97:117:09First Quarter27Mon
28Tue3:405.24:296.19:500.610:420.77:117:07Waxing Gibbous28Tue
29Wed4:475.55:306.210:560.511:390.57:127:06Waxing Gibbous29Wed
30Thu5:495.86:256.211:580.37:137:05Waxing Gibbous30Thu
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 6:06 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 neap phase. Tonight's moon is 41% 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 minimum.

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 (41% illuminated). This places Fort Sumter, SC in a neap tide cycle, so tidal ranges are near their weekly minimum 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