Tides Today & Tomorrow in Fort Sumter, SC

TIDE TIMES for Thursday, June 4, 2026
The tide is currently falling in Fort Sumter, SC.
Next low tide : in 2h 05m at 5:03 pm (0.6 ft)
Next high tide : 11:31 pm (5.1 ft)
Sunset today : 8:24 pm
Sunrise tomorrow : 6:11 am
Moon phase : Waning Gibbous (84% illuminated)
Tide Station Location : Station #8665728
Common Questions About Tides

Fort Sumter, SC Tides - May 2028

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon1:095.51:574.67:490.48:010.36:318:01First Quarter1Mon
2Tue2:145.43:044.88:500.39:100.36:308:02First Quarter2Tue
3Wed3:195.34:105.29:490.110:170.26:298:03First Quarter3Wed
4Thu4:235.35:145.610:46-0.111:220.06:288:03Waxing Gibbous4Thu
5Fri5:255.36:126.011:41-0.46:278:04Waxing Gibbous5Fri
6Sat6:225.37:056.312:23-0.212:33-0.56:268:05Waxing Gibbous6Sat
7Sun7:155.27:566.41:19-0.41:23-0.66:268:05Full Moon7Sun
8Mon8:065.28:456.42:12-0.52:12-0.66:258:06Full Moon8Mon
9Tue8:555.09:336.33:03-0.43:00-0.46:248:07Full Moon9Tue
10Wed9:454.910:206.13:52-0.33:46-0.26:238:08Waning Gibbous10Wed
11Thu10:334.711:075.84:39-0.14:320.16:228:08Waning Gibbous11Thu
12Fri11:224.511:545.45:250.25:170.46:228:09Waning Gibbous12Fri
13Sat12:124.46:120.46:040.76:218:10Waning Gibbous13Sat
14Sun12:415.11:044.37:000.66:560.96:208:11Third Quarter14Sun
15Mon1:304.91:574.37:490.77:531.16:198:11Third Quarter15Mon
16Tue2:204.72:494.48:380.88:521.26:198:12Third Quarter16Tue
17Wed3:094.63:414.69:240.79:501.26:188:13Third Quarter17Wed
18Thu3:594.54:334.810:090.710:451.16:188:13Waning Crescent18Thu
19Fri4:504.55:225.010:530.511:380.96:178:14Waning Crescent19Fri
20Sat5:404.56:095.311:370.46:168:15Waning Crescent20Sat
21Sun6:274.56:525.512:270.712:200.26:168:15Waning Crescent21Sun
22Mon7:114.57:325.71:140.51:030.16:158:16New Moon22Mon
23Tue7:544.58:125.81:580.31:460.06:158:17New Moon23Tue
24Wed8:364.58:535.92:420.22:30-0.16:148:17New Moon24Wed
25Thu9:194.59:365.93:260.13:16-0.26:148:18New Moon25Thu
26Fri10:064.510:225.94:110.14:04-0.26:148:19Waxing Crescent26Fri
27Sat10:564.611:125.84:570.04:54-0.26:138:19Waxing Crescent27Sat
28Sun11:514.65:450.05:470.06:138:20Waxing Crescent28Sun
29Mon12:055.712:514.76:360.06:470.16:128:21First Quarter29Mon
30Tue1:025.51:534.97:310.07:520.26:128:21First Quarter30Tue
31Wed2:015.42:555.28:28-0.18:580.26:128:22First Quarter31Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8665728)

Common Questions About Fort Sumter, SC Tides

Show All
What time does the tide turn (slack tide) in Fort Sumter, SC today?

Slack tide in Fort Sumter, SC is approximately 8:17 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 Waning 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