Tides Today & Tomorrow in Fort Sumter, SC

TIDE TIMES for Wednesday, July 15, 2026
The tide is currently rising in Fort Sumter, SC.
Next low tide (tomorrow) : 4:14 am (-0.4 ft)
Next high tide : in 29m at 9:55 pm (6.3 ft)
Sunset today : 8:28 pm
Sunrise tomorrow : 6:22 am
Moon phase : New Moon (2% illuminated)
Tide Station Location : Station #8665728
Common Questions About Tides

Fort Sumter, SC Tides - Jan 2075

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue7:085.37:284.412:41-0.21:300.17:215:24Full Moon1Tue
2Wed7:465.38:074.41:21-0.22:080.17:215:25Full Moon2Wed
3Thu8:225.38:434.31:59-0.22:440.17:225:26Full Moon3Thu
4Fri8:565.29:184.32:37-0.23:190.17:225:26Waning Gibbous4Fri
5Sat9:305.29:524.23:16-0.23:540.17:225:27Waning Gibbous5Sat
6Sun10:055.110:294.33:57-0.14:320.17:225:28Waning Gibbous6Sun
7Mon10:455.011:144.34:41-0.15:140.17:225:29Waning Gibbous7Mon
8Tue11:314.95:320.16:010.07:225:30Third Quarter8Tue
9Wed12:084.512:254.76:310.26:56-0.17:225:30Third Quarter9Wed
10Thu1:094.61:244.67:360.27:54-0.27:225:31Third Quarter10Thu
11Fri2:164.82:294.58:440.18:55-0.47:225:32Third Quarter11Fri
12Sat3:255.13:374.59:51-0.19:57-0.67:225:33Waning Crescent12Sat
13Sun4:345.44:464.610:56-0.310:59-0.87:215:34Waning Crescent13Sun
14Mon5:375.75:494.711:56-0.611:58-1.07:215:35Waning Crescent14Mon
15Tue6:356.06:474.912:52-0.87:215:36New Moon15Tue
16Wed7:306.17:425.012:55-1.21:45-1.07:215:37New Moon16Wed
17Thu8:236.18:375.01:49-1.22:36-1.07:215:38New Moon17Thu
18Fri9:156.09:305.02:42-1.23:25-1.07:205:38Waxing Crescent18Fri
19Sat10:045.710:214.93:33-1.04:12-0.87:205:39Waxing Crescent19Sat
20Sun10:525.411:124.84:23-0.74:59-0.67:205:40Waxing Crescent20Sun
21Mon11:405.05:15-0.35:46-0.37:195:41Waxing Crescent21Mon
22Tue12:034.712:284.76:090.16:35-0.17:195:42First Quarter22Tue
23Wed12:554.61:174.47:070.37:240.17:185:43First Quarter23Wed
24Thu1:474.52:074.18:050.58:140.27:185:44First Quarter24Thu
25Fri2:394.52:594.09:030.69:040.27:175:45First Quarter25Fri
26Sat3:334.53:544.09:580.69:540.27:175:46Waxing Gibbous26Sat
27Sun4:264.64:474.010:500.510:430.17:165:47Waxing Gibbous27Sun
28Mon5:164.85:364.111:380.311:30-0.17:165:48Waxing Gibbous28Mon
29Tue6:015.06:214.212:210.27:155:49Waxing Gibbous29Tue
30Wed6:435.17:034.312:14-0.21:020.07:155:50Full Moon30Wed
31Thu7:235.27:434.412:56-0.41:40-0.17:145:51Full Moon31Thu
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 1:04 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 2% 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 New Moon (2% 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