Tides Today & Tomorrow in Fort Sumter, SC

TIDE TIMES for Thursday, June 25, 2026
The tide is currently rising in Fort Sumter, SC.
Next low tide (tomorrow) : 12:11 am (0.6 ft)
Next high tide : in 39m at 5:56 pm (5.4 ft)
Sunset today : 8:31 pm
Sunrise tomorrow : 6:13 am
Moon phase : Waxing Gibbous (84% illuminated)
Tide Station Location : Station #8665728
Common Questions About Tides

Fort Sumter, SC Tides - Aug 2046

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed7:324.87:596.21:360.31:34-0.36:338:17New Moon1Wed
2Thu8:255.18:486.32:240.02:28-0.56:348:17New Moon2Thu
3Fri9:185.49:376.33:12-0.33:21-0.66:358:16New Moon3Fri
4Sat10:125.610:276.13:58-0.54:14-0.56:358:15Waxing Crescent4Sat
5Sun11:075.711:175.94:45-0.55:08-0.36:368:14Waxing Crescent5Sun
6Mon12:025.85:32-0.56:05-0.16:378:13Waxing Crescent6Mon
7Tue12:095.61:005.96:22-0.47:050.26:378:12First Quarter7Tue
8Wed1:055.22:005.87:16-0.28:090.56:388:11First Quarter8Wed
9Thu2:024.93:005.88:130.09:130.66:398:10First Quarter9Thu
10Fri3:024.74:025.89:130.110:150.76:398:09First Quarter10Fri
11Sat4:024.65:035.810:130.311:150.76:408:08Waxing Gibbous11Sat
12Sun5:044.66:005.811:120.36:418:07Waxing Gibbous12Sun
13Mon6:024.76:505.812:100.612:080.36:418:06Waxing Gibbous13Mon
14Tue6:544.87:355.81:000.512:590.36:428:05Full Moon14Tue
15Wed7:404.98:165.81:450.51:460.36:438:04Full Moon15Wed
16Thu8:245.08:545.72:270.42:310.46:438:03Full Moon16Thu
17Fri9:065.19:315.63:060.43:120.56:448:02Full Moon17Fri
18Sat9:455.110:075.43:420.43:520.66:458:01Waning Gibbous18Sat
19Sun10:235.110:415.24:150.54:290.86:468:00Waning Gibbous19Sun
20Mon11:005.111:155.04:460.65:071.06:467:59Waning Gibbous20Mon
21Tue11:355.111:504.85:180.65:461.26:477:57Waning Gibbous21Tue
22Wed12:135.15:530.76:301.36:477:56Waning Gibbous22Wed
23Thu12:294.612:565.16:330.87:201.56:487:55Third Quarter23Thu
24Fri1:134.41:475.27:200.88:181.56:497:54Third Quarter24Fri
25Sat2:054.42:435.38:150.89:191.56:497:53Third Quarter25Sat
26Sun3:044.43:455.59:150.710:201.36:507:51Third Quarter26Sun
27Mon4:084.54:485.710:170.511:191.16:517:50Waning Crescent27Mon
28Tue5:134.85:496.011:190.36:517:49Waning Crescent28Tue
29Wed6:145.16:446.212:150.712:190.06:527:48Waning Crescent29Wed
30Thu7:105.57:356.41:060.31:16-0.26:537:46New Moon30Thu
31Fri8:035.98:256.51:560.02:12-0.46:537:45New Moon31Fri
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 9:03 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 spring phase. Tonight's moon is 84% 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 Waxing Gibbous (84% 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