Tides Today & Tomorrow in St. Marks, St. Marks River, FL

TIDE TIMES for Tuesday, June 23, 2026
The tide is currently falling in St. Marks, St. Marks River, FL.
Next low tide : in 5h 17m at 5:56 pm (0.8 ft)
Next high tide (tomorrow) : 12:03 am (2.2 ft)
Sunset today : 8:41 pm
Sunrise tomorrow : 6:36 am
Moon phase : First Quarter (67% illuminated)
Tide Station Location : Station #8728142
Common Questions About Tides

St. Marks, St. Marks River, FL Tides - Oct 2017

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun12:552.912:363.06:521.67:420.67:307:22Waxing Gibbous1Sun
2Mon1:323.11:243.37:421.38:200.57:317:20Waxing Gibbous2Mon
3Tue2:043.22:063.58:221.08:540.57:317:19Waxing Gibbous3Tue
4Wed2:333.42:463.79:000.79:260.57:327:18Full Moon4Wed
5Thu3:013.53:273.89:370.49:580.57:327:17Full Moon5Thu
6Fri3:283.64:093.810:150.110:300.77:337:16Full Moon6Fri
7Sat3:553.74:523.710:55-0.111:040.97:347:15Waning Gibbous7Sat
8Sun4:253.85:393.611:37-0.211:391.17:347:13Waning Gibbous8Sun
9Mon4:583.86:293.312:24-0.17:357:12Waning Gibbous9Mon
10Tue5:343.77:293.012:181.31:170.07:357:11Waning Gibbous10Tue
11Wed6:183.58:422.81:031.52:230.27:367:10Third Quarter11Wed
12Thu7:163.310:092.72:011.73:440.57:377:09Third Quarter12Thu
13Fri8:443.011:282.83:241.85:110.67:377:08Third Quarter13Fri
14Sat10:443.05:031.76:260.67:387:07Waning Crescent14Sat
15Sun12:262.912:153.16:281.47:230.67:397:05Waning Crescent15Sun
16Mon1:113.11:183.37:291.08:090.67:397:04Waning Crescent16Mon
17Tue1:493.32:073.48:180.68:470.77:407:03Waning Crescent17Tue
18Wed2:223.42:503.59:010.39:200.87:417:02New Moon18Wed
19Thu2:523.53:293.59:400.19:500.97:417:01New Moon19Thu
20Fri3:203.54:053.410:170.010:171.07:427:00New Moon20Fri
21Sat3:463.54:403.410:520.010:441.17:436:59New Moon21Sat
22Sun4:103.45:163.211:260.011:121.27:436:58Waxing Crescent22Sun
23Mon4:353.45:543.112:020.27:446:57Waxing Crescent23Mon
24Tue5:023.26:362.912:400.37:456:56Waxing Crescent24Tue
25Wed5:323.17:272.712:191.41:240.57:456:55Waxing Crescent25Wed
26Thu6:092.98:322.61:021.62:190.77:466:54First Quarter26Thu
27Fri7:012.79:512.62:021.73:310.87:476:53First Quarter27Fri
28Sat8:322.511:052.73:281.84:470.87:486:52First Quarter28Sat
29Sun10:372.55:061.65:540.87:486:52First Quarter29Sun
30Mon12:002.811:59 AM2.76:201.36:470.77:496:51Waxing Gibbous30Mon
31Tue12:413.012:573.07:121.07:320.77:506:50Waxing Gibbous31Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8728142)

Common Questions About St. Marks, St. Marks River, FL Tides

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What time does the tide turn (slack tide) in St. Marks, St. Marks River, FL today?

Slack tide in St. Marks, St. Marks River, FL is approximately 8:59 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 St. Marks, St. Marks River, FL?

St. Marks, St. Marks River, FL is currently in a transitional phase. Tonight's moon is 67% 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 St. Marks, St. Marks River, FL 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 St. Marks, St. Marks River, FL?

Tide predictions for St. Marks, St. Marks River, FL 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 St. Marks, St. Marks River, FL?

Tide data for St. Marks, St. Marks River, FL is sourced from NOAA Station #8728142. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8728142.

What is the moon phase in St. Marks, St. Marks River, FL tonight?

Tonight the moon over St. Marks, St. Marks River, FL is First Quarter (67% illuminated). This places St. Marks, St. Marks River, FL 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