Tides Today & Tomorrow in Fort Sumter, SC

TIDE TIMES for Friday, July 3, 2026
The tide is currently rising in Fort Sumter, SC.
Next low tide : 4:44 pm (0.4 ft)
Next high tide : in 5h 31m at 10:47 am (4.3 ft)
Sunset today : 8:31 pm
Sunrise tomorrow : 6:16 am
Moon phase : Waning Gibbous (88% illuminated)
Tide Station Location : Station #8665728
Common Questions About Tides

Fort Sumter, SC Tides - Jul 2057

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun8:244.48:415.62:300.32:140.16:158:31New Moon1Sun
2Mon9:064.49:195.53:090.32:540.16:168:31New Moon2Mon
3Tue9:464.39:555.43:460.33:330.26:168:31New Moon3Tue
4Wed10:254.310:305.44:220.44:120.26:168:31Waxing Crescent4Wed
5Thu11:024.311:055.34:570.44:530.36:178:31Waxing Crescent5Thu
6Fri11:414.311:445.25:340.45:380.46:178:31Waxing Crescent6Fri
7Sat12:244.56:140.36:280.56:188:30Waxing Crescent7Sat
8Sun12:285.11:144.76:590.27:250.66:188:30First Quarter8Sun
9Mon1:185.02:094.97:490.18:270.56:198:30First Quarter9Mon
10Tue2:135.03:085.28:43-0.19:320.56:208:30First Quarter10Tue
11Wed3:124.94:105.59:40-0.210:370.36:208:29Waxing Gibbous11Wed
12Thu4:164.85:155.810:39-0.411:410.16:218:29Waxing Gibbous12Thu
13Fri5:224.86:176.111:39-0.56:218:29Waxing Gibbous13Fri
14Sat6:274.97:166.412:42-0.112:39-0.76:228:28Waxing Gibbous14Sat
15Sun7:285.08:146.51:39-0.41:37-0.76:228:28Full Moon15Sun
16Mon8:275.19:106.52:35-0.52:34-0.86:238:27Full Moon16Mon
17Tue9:265.110:056.43:28-0.63:29-0.76:248:27Full Moon17Tue
18Wed10:245.110:586.24:19-0.64:24-0.56:248:27Waning Gibbous18Wed
19Thu11:215.111:495.95:09-0.55:17-0.26:258:26Waning Gibbous19Thu
20Fri12:165.15:58-0.36:120.16:268:25Waning Gibbous20Fri
21Sat12:395.51:105.16:47-0.17:090.46:268:25Third Quarter21Sat
22Sun1:285.22:025.17:360.08:080.76:278:24Third Quarter22Sun
23Mon2:174.92:535.18:250.29:060.86:288:24Third Quarter23Mon
24Tue3:054.73:425.19:130.310:020.96:288:23Third Quarter24Tue
25Wed3:544.54:325.210:000.410:560.96:298:22Waning Crescent25Wed
26Thu4:454.45:215.310:470.411:470.96:298:22Waning Crescent26Thu
27Fri5:374.46:095.411:340.46:308:21Waning Crescent27Fri
28Sat6:264.46:545.512:340.812:200.36:318:20Waning Crescent28Sat
29Sun7:134.57:365.61:180.71:040.36:328:20New Moon29Sun
30Mon7:574.68:165.72:000.61:470.26:328:19New Moon30Mon
31Tue8:394.68:545.72:390.52:290.26:338:18New Moon31Tue
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 1:45 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 88% 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 Waning Gibbous (88% 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