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

TIDE TIMES for Saturday, June 20, 2026
The tide is currently falling in St. Marks, St. Marks River, FL.
Next low tide : in 1h 25m at 1:53 am (0.3 ft)
Next high tide : 7:54 am (2.8 ft)
Sunset today : 8:41 pm
Sunrise tomorrow : 6:35 am
Moon phase : First Quarter (37% illuminated)
Tide Station Location : Station #8728142
Common Questions About Tides

St. Marks, St. Marks River, FL Tides - Apr 2032

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu7:212.66:123.31:18-0.312:491.17:247:55Third Quarter1Thu
2Fri8:312.47:053.12:18-0.21:451.47:237:56Third Quarter2Fri
3Sat9:592.48:262.83:330.03:081.67:227:57Third Quarter3Sat
4Sun11:232.510:282.74:560.14:581.57:217:57Third Quarter4Sun
5Mon12:252.86:110.06:331.17:207:58Waning Crescent5Mon
6Tue12:092.81:123.07:130.07:400.77:197:58Waning Crescent6Tue
7Wed1:203.11:513.38:030.18:320.27:177:59Waning Crescent7Wed
8Thu2:173.22:273.58:470.29:19-0.27:168:00New Moon8Thu
9Fri3:073.33:003.69:250.410:02-0.57:158:00New Moon9Fri
10Sat3:533.33:313.710:000.510:44-0.67:148:01New Moon10Sat
11Sun4:363.24:003.710:320.711:24-0.67:138:02New Moon11Sun
12Mon5:173.04:293.611:020.97:128:02Waxing Crescent12Mon
13Tue5:582.84:563.512:04-0.411:32 AM1.17:108:03Waxing Crescent13Tue
14Wed6:412.65:253.312:44-0.212:021.37:098:03Waxing Crescent14Wed
15Thu7:312.45:573.11:280.112:381.47:088:04First Quarter15Thu
16Fri8:352.26:382.82:200.41:251.67:078:05First Quarter16Fri
17Sat10:012.27:412.53:280.62:431.77:068:05First Quarter17Sat
18Sun11:232.39:582.34:500.84:431.77:058:06First Quarter18Sun
19Mon12:172.56:030.86:241.47:048:07First Quarter19Mon
20Tue12:562.76:560.87:231.07:038:07Waxing Gibbous20Tue
21Wed12:582.51:282.97:370.88:070.77:028:08Waxing Gibbous21Wed
22Thu1:442.71:563.18:100.88:440.37:018:08Waxing Gibbous22Thu
23Fri2:242.92:223.38:390.89:180.17:008:09Waxing Gibbous23Fri
24Sat3:013.02:463.49:080.89:52-0.26:598:10Full Moon24Sat
25Sun3:383.13:103.59:360.910:26-0.46:588:10Full Moon25Sun
26Mon4:163.23:363.610:070.911:02-0.56:578:11Full Moon26Mon
27Tue4:553.24:063.710:391.011:39-0.66:568:12Waning Gibbous27Tue
28Wed5:363.14:393.711:141.16:558:12Waning Gibbous28Wed
29Thu6:223.05:173.712:21-0.511:54 AM1.26:548:13Waning Gibbous29Thu
30Fri7:132.96:023.51:07-0.412:421.36:538:14Waning Gibbous30Fri
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 4:53 am — 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 37% 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 (37% 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