Tides Today & Tomorrow in Fort Sumter, SC

TIDE TIMES for Monday, July 6, 2026
The tide is currently rising in Fort Sumter, SC.
Next low tide : 7:13 pm (0.7 ft)
Next high tide : in 7m at 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 - May 2063

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue10:344.510:505.94:430.24:350.06:318:01Waxing Crescent1Tue
2Wed11:244.411:435.75:310.35:250.16:318:02Waxing Crescent2Wed
3Thu12:234.46:230.46:220.26:308:02Waxing Crescent3Thu
4Fri12:435.61:294.57:220.47:270.36:298:03First Quarter4Fri
5Sat1:495.52:374.78:230.48:360.36:288:04First Quarter5Sat
6Sun2:545.43:434.99:230.29:440.36:278:04First Quarter6Sun
7Mon3:575.34:465.310:210.010:500.16:268:05Waxing Gibbous7Mon
8Tue4:585.35:465.711:15-0.211:520.06:258:06Waxing Gibbous8Tue
9Wed5:565.26:396.012:07-0.36:248:07Waxing Gibbous9Wed
10Thu6:485.27:286.212:49-0.212:56-0.46:248:07Waxing Gibbous10Thu
11Fri7:375.18:156.31:42-0.31:43-0.46:238:08Full Moon11Fri
12Sat8:234.99:006.22:33-0.32:28-0.36:228:09Full Moon12Sat
13Sun9:094.89:456.13:21-0.23:12-0.26:218:10Full Moon13Sun
14Mon9:554.610:285.84:060.03:550.16:218:10Waning Gibbous14Mon
15Tue10:414.511:125.54:500.24:370.36:208:11Waning Gibbous15Tue
16Wed11:274.311:565.25:340.45:190.66:198:12Waning Gibbous16Wed
17Thu12:154.26:180.66:040.96:198:12Waning Gibbous17Thu
18Fri12:435.01:064.27:040.86:541.16:188:13Third Quarter18Fri
19Sat1:314.81:594.27:520.97:511.26:178:14Third Quarter19Sat
20Sun2:214.62:514.38:400.98:501.26:178:15Third Quarter20Sun
21Mon3:114.53:434.59:260.89:491.26:168:15Third Quarter21Mon
22Tue4:014.54:354.710:110.710:461.16:168:16Waning Crescent22Tue
23Wed4:524.45:255.010:550.511:400.96:158:17Waning Crescent23Wed
24Thu5:424.46:115.311:400.36:158:17Waning Crescent24Thu
25Fri6:304.46:555.612:320.612:250.16:148:18Waning Crescent25Fri
26Sat7:154.57:375.81:200.41:100.06:148:18New Moon26Sat
27Sun7:594.58:206.02:080.21:56-0.26:138:19New Moon27Sun
28Mon8:454.59:066.12:550.12:44-0.36:138:20New Moon28Mon
29Tue9:344.59:556.13:420.03:33-0.36:138:20New Moon29Tue
30Wed10:274.510:476.04:300.04:24-0.36:128:21Waxing Crescent30Wed
31Thu11:244.611:425.95:200.05:18-0.26:128:22Waxing Crescent31Thu
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 4:05 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 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