Tides Today & Tomorrow in Charleston, SC

TIDE TIMES for Sunday, July 19, 2026
The tide is currently rising in Charleston, SC.
Next low tide : 7:03 pm (0.4 ft)
Next high tide : in 5h 21m at 1:06 pm (5.4 ft)
Sunset today : 8:26 pm
Sunrise tomorrow : 6:25 am
Moon phase : First Quarter (32% illuminated)
Tide Station Location : Station #8665530
Common Questions About Tides

Charleston, SC Tides - Sep 1984

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat12:535.71:446.37:030.17:550.66:547:44First Quarter1Sat
2Sun1:505.32:436.28:000.48:580.86:557:43First Quarter2Sun
3Mon2:485.13:426.18:590.69:591.06:557:41First Quarter3Mon
4Tue3:475.04:416.09:580.710:571.06:567:40Waxing Gibbous4Tue
5Wed4:464.95:376.010:560.811:511.06:577:39Waxing Gibbous5Wed
6Thu5:425.06:276.011:510.76:577:37Waxing Gibbous6Thu
7Fri6:325.27:116.112:400.912:410.76:587:36Waxing Gibbous7Fri
8Sat7:185.37:516.11:240.81:270.76:597:35Full Moon8Sat
9Sun8:005.48:296.02:050.72:100.76:597:33Full Moon9Sun
10Mon8:405.59:055.92:420.72:510.77:007:32Full Moon10Mon
11Tue9:185.69:415.83:170.73:290.87:017:31Full Moon11Tue
12Wed9:545.610:155.63:500.74:060.97:017:29Waning Gibbous12Wed
13Thu10:285.610:475.44:210.84:431.17:027:28Waning Gibbous13Thu
14Fri11:015.611:195.24:530.95:211.37:027:27Waning Gibbous14Fri
15Sat11:355.611:555.05:270.96:031.57:037:25Waning Gibbous15Sat
16Sun12:165.66:061.06:511.67:047:24Third Quarter16Sun
17Mon12:384.81:065.76:531.17:481.77:047:23Third Quarter17Mon
18Tue1:324.82:055.87:481.18:511.67:057:21Third Quarter18Tue
19Wed2:334.83:105.98:511.09:551.57:067:20Third Quarter19Wed
20Thu3:404.94:176.19:560.810:561.27:067:19Waning Crescent20Thu
21Fri4:495.25:236.411:010.511:540.87:077:17Waning Crescent21Fri
22Sat5:545.66:236.612:030.27:087:16Waning Crescent22Sat
23Sun6:536.07:176.812:480.41:02-0.17:087:15New Moon23Sun
24Mon7:476.48:086.91:390.01:59-0.37:097:13New Moon24Mon
25Tue8:416.78:596.82:29-0.22:54-0.47:107:12New Moon25Tue
26Wed9:356.99:506.63:17-0.43:48-0.37:107:11New Moon26Wed
27Thu10:297.010:426.34:05-0.34:42-0.17:117:09Waxing Crescent27Thu
28Fri11:236.911:355.94:52-0.25:360.27:127:08Waxing Crescent28Fri
29Sat12:196.75:420.16:330.67:127:06Waxing Crescent29Sat
30Sun12:305.61:186.46:350.57:330.97:137:05First Quarter30Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8665530)

Common Questions About Charleston, SC Tides

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What time does the tide turn (slack tide) in Charleston, SC today?

Slack tide in Charleston, SC is approximately 4:04 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 Charleston, SC?

Charleston, SC is currently in a transitional phase. Tonight's moon is 32% 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 shifting between spring and neap.

What datum are Charleston, 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 Charleston, SC?

Tide predictions for Charleston, 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 Charleston, SC?

Tide data for Charleston, SC is sourced from NOAA Station #8665530. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8665530.

What is the moon phase in Charleston, SC tonight?

Tonight the moon over Charleston, SC is First Quarter (32% illuminated). This places Charleston, SC in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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