Tides Today & Tomorrow in Fort Sumter, SC

TIDE TIMES for Thursday, August 6, 2026
The tide is currently rising in Fort Sumter, SC.
Next low tide : 9:06 pm (0.9 ft)
Next high tide : in 2h 53m at 2:29 pm (5.6 ft)
Sunset today : 8:13 pm
Sunrise tomorrow : 6:37 am
Moon phase : Third Quarter (44% illuminated)
Tide Station Location : Station #8665728
Common Questions About Tides

Fort Sumter, SC Tides - Jun 2100

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue3:454.64:204.89:570.410:350.96:128:22Third Quarter1Tue
2Wed4:344.55:095.010:410.411:270.96:128:23Waning Crescent2Wed
3Thu5:224.45:555.211:240.36:118:23Waning Crescent3Thu
4Fri6:104.46:385.412:160.712:050.36:118:24Waning Crescent4Fri
5Sat6:554.37:195.51:020.612:460.26:118:24Waning Crescent5Sat
6Sun7:384.37:585.61:450.51:260.26:118:25New Moon6Sun
7Mon8:194.38:355.62:260.42:070.26:118:25New Moon7Mon
8Tue9:004.29:135.63:060.42:470.16:118:26New Moon8Tue
9Wed9:394.29:505.63:450.43:290.16:118:26New Moon9Wed
10Thu10:194.210:295.54:240.44:120.16:118:27Waxing Crescent10Thu
11Fri11:014.211:115.55:030.34:570.26:118:27Waxing Crescent11Fri
12Sat11:474.311:575.45:450.35:470.36:118:28Waxing Crescent12Sat
13Sun12:414.56:310.26:430.36:118:28First Quarter13Sun
14Mon12:485.31:394.77:220.17:450.46:118:28First Quarter14Mon
15Tue1:445.22:395.08:150.08:510.46:118:29First Quarter15Tue
16Wed2:425.03:405.39:10-0.29:570.36:118:29First Quarter16Wed
17Thu3:424.94:425.710:06-0.311:030.26:118:29Waxing Gibbous17Thu
18Fri4:454.85:446.011:04-0.46:118:30Waxing Gibbous18Fri
19Sat5:494.76:436.212:050.012:01-0.56:118:30Waxing Gibbous19Sat
20Sun6:504.77:386.31:04-0.212:58-0.66:128:30Full Moon20Sun
21Mon7:474.78:336.32:00-0.31:53-0.66:128:30Full Moon21Mon
22Tue8:444.79:276.22:54-0.32:47-0.56:128:31Full Moon22Tue
23Wed9:404.710:186.03:45-0.33:40-0.36:128:31Full Moon23Wed
24Thu10:344.611:085.74:34-0.24:31-0.16:138:31Waning Gibbous24Thu
25Fri11:274.611:555.45:20-0.15:210.26:138:31Waning Gibbous25Fri
26Sat12:184.66:060.16:120.56:138:31Waning Gibbous26Sat
27Sun12:405.11:094.66:520.27:050.86:148:31Third Quarter27Sun
28Mon1:254.81:594.67:370.38:021.06:148:31Third Quarter28Mon
29Tue2:114.62:474.78:220.48:581.16:148:31Third Quarter29Tue
30Wed2:574.43:354.89:060.49:531.16:158:31Third Quarter30Wed
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 5:47 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 44% 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 (44% 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