Tides Today & Tomorrow in Fort Sumter, SC

TIDE TIMES for Tuesday, June 30, 2026
The tide is currently rising in Fort Sumter, SC.
Next low tide : 2:45 pm (0.3 ft)
Next high tide : in 54m at 8:51 am (4.3 ft)
Sunset today : 8:31 pm
Sunrise tomorrow : 6:14 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #8665728
Common Questions About Tides

Fort Sumter, SC Tides - Jan 2053

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed4:195.54:474.810:48-0.210:57-0.97:215:24Waxing Gibbous1Wed
2Thu5:225.85:495.011:48-0.511:55-1.17:225:25Waxing Gibbous2Thu
3Fri6:216.16:475.112:45-0.87:225:26Full Moon3Fri
4Sat7:176.27:435.212:51-1.31:39-1.07:225:27Full Moon4Sat
5Sun8:116.38:395.31:45-1.42:31-1.17:225:27Full Moon5Sun
6Mon9:046.19:335.22:39-1.43:21-1.07:225:28Waning Gibbous6Mon
7Tue9:555.910:275.13:31-1.24:10-0.97:225:29Waning Gibbous7Tue
8Wed10:465.611:215.04:23-0.94:59-0.67:225:30Waning Gibbous8Wed
9Thu11:365.25:16-0.55:49-0.47:225:31Waning Gibbous9Thu
10Fri12:154.912:264.96:12-0.26:41-0.27:225:32Third Quarter10Fri
11Sat1:104.71:164.67:110.17:340.07:225:32Third Quarter11Sat
12Sun2:034.72:074.38:090.38:250.17:225:33Third Quarter12Sun
13Mon2:574.63:004.29:060.49:160.27:215:34Third Quarter13Mon
14Tue3:514.73:534.110:010.410:060.17:215:35Waning Crescent14Tue
15Wed4:424.84:454.210:530.310:530.17:215:36Waning Crescent15Wed
16Thu5:304.95:344.311:400.211:38-0.17:215:37Waning Crescent16Thu
17Fri6:145.16:194.412:240.07:215:38Waning Crescent17Fri
18Sat6:555.17:004.412:21-0.21:05-0.17:205:39New Moon18Sat
19Sun7:345.27:404.51:01-0.31:43-0.27:205:40New Moon19Sun
20Mon8:115.28:174.51:40-0.32:20-0.27:205:41New Moon20Mon
21Tue8:455.18:514.52:18-0.42:56-0.37:195:42New Moon21Tue
22Wed9:175.19:254.62:57-0.43:31-0.37:195:43Waxing Crescent22Wed
23Thu9:505.010:024.63:37-0.34:09-0.37:185:44Waxing Crescent23Thu
24Fri10:264.910:444.74:20-0.24:50-0.37:185:44Waxing Crescent24Fri
25Sat11:094.711:344.75:08-0.15:36-0.37:175:45Waxing Crescent25Sat
26Sun12:014.66:040.06:29-0.37:175:46First Quarter26Sun
27Mon12:334.81:024.47:080.17:28-0.47:165:47First Quarter27Mon
28Tue1:394.92:094.48:160.18:31-0.57:165:48First Quarter28Tue
29Wed2:495.13:214.49:250.09:36-0.67:155:49Waxing Gibbous29Wed
30Thu4:025.34:334.610:31-0.210:40-0.97:145:50Waxing Gibbous30Thu
31Fri5:095.65:374.811:32-0.511:40-1.17:145:51Waxing Gibbous31Fri
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 11:48 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 100% 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 (100% 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