Tides Today & Tomorrow in Fort Sumter, SC

TIDE TIMES for Wednesday, July 1, 2026
The tide is currently rising in Fort Sumter, SC.
Next low tide (tomorrow) : 4:18 am (0.4 ft)
Next high tide : in 5h 21m at 9:59 pm (5.4 ft)
Sunset today : 8:31 pm
Sunrise tomorrow : 6:15 am
Moon phase : Full Moon (97% illuminated)
Tide Station Location : Station #8665728
Common Questions About Tides

Fort Sumter, SC Tides - Jan 2055

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri10:075.110:184.33:390.04:200.17:215:24Waxing Crescent1Fri
2Sat10:454.911:004.24:170.24:570.37:215:25Waxing Crescent2Sat
3Sun11:264.611:444.24:570.45:370.47:225:25Waxing Crescent3Sun
4Mon12:094.45:420.66:190.47:225:26First Quarter4Mon
5Tue12:314.212:554.36:340.77:050.47:225:27First Quarter5Tue
6Wed1:214.21:454.27:320.87:540.47:225:28First Quarter6Wed
7Thu2:144.32:384.18:320.88:460.27:225:29First Quarter7Thu
8Fri3:094.53:344.19:320.69:390.07:225:29Waxing Gibbous8Fri
9Sat4:074.84:324.210:300.410:33-0.27:225:30Waxing Gibbous9Sat
10Sun5:025.15:264.411:250.111:26-0.57:225:31Waxing Gibbous10Sun
11Mon5:535.46:174.612:17-0.27:225:32Waxing Gibbous11Mon
12Tue6:425.77:064.712:18-0.81:07-0.57:225:33Full Moon12Tue
13Wed7:315.97:564.91:09-1.01:56-0.77:225:34Full Moon13Wed
14Thu8:216.08:485.02:01-1.22:45-0.97:215:35Full Moon14Thu
15Fri9:126.09:425.12:52-1.33:33-0.97:215:36Waning Gibbous15Fri
16Sat10:035.810:375.13:44-1.24:22-0.97:215:37Waning Gibbous16Sat
17Sun10:565.611:355.04:38-1.05:13-0.87:215:37Waning Gibbous17Sun
18Mon11:525.35:36-0.76:08-0.67:205:38Third Quarter18Mon
19Tue12:365.012:495.06:39-0.47:05-0.57:205:39Third Quarter19Tue
20Wed1:385.01:484.77:44-0.28:04-0.47:205:40Third Quarter20Wed
21Thu2:405.02:484.58:48-0.19:02-0.47:195:41Third Quarter21Thu
22Fri3:425.13:494.49:50-0.110:00-0.37:195:42Waning Crescent22Fri
23Sat4:425.24:474.310:49-0.110:55-0.47:195:43Waning Crescent23Sat
24Sun5:355.35:404.411:42-0.211:46-0.47:185:44Waning Crescent24Sun
25Mon6:225.36:274.512:31-0.37:185:45Waning Crescent25Mon
26Tue7:065.37:104.512:33-0.51:16-0.37:175:46New Moon26Tue
27Wed7:465.37:524.61:17-0.51:57-0.37:175:47New Moon27Wed
28Thu8:255.28:324.51:58-0.42:36-0.37:165:48New Moon28Thu
29Fri9:025.19:104.52:37-0.33:12-0.27:155:49New Moon29Fri
30Sat9:374.99:464.43:14-0.23:45-0.17:155:50Waxing Crescent30Sat
31Sun10:114.810:224.43:500.04:180.07:145:51Waxing Crescent31Sun
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 1:08 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 spring phase. Tonight's moon is 97% 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 maximum.

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 Full Moon (97% illuminated). This places Fort Sumter, SC in a spring tide cycle, so tidal ranges are near their weekly maximum 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