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

TIDE TIMES for Saturday, June 20, 2026
The tide is currently rising in St. Marks, St. Marks River, FL.
Next low tide (tomorrow) : 2:30 am (0.8 ft)
Next high tide : in 4h 11m at 7:13 pm (2.9 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 - May 2033

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun5:303.14:303.711:061.26:538:14Waxing Crescent1Sun
2Mon6:152.95:033.612:15-0.511:42 AM1.36:528:15Waxing Crescent2Mon
3Tue7:012.75:383.312:59-0.212:191.46:518:15Waxing Crescent3Tue
4Wed7:542.56:173.01:460.11:041.66:508:16First Quarter4Wed
5Thu8:592.47:102.72:390.52:071.76:498:17First Quarter5Thu
6Fri10:142.48:422.43:440.73:421.76:488:17First Quarter6Fri
7Sat11:222.511:022.34:570.95:321.56:488:18First Quarter7Sat
8Sun12:122.76:031.06:491.26:478:19Waxing Gibbous8Sun
9Mon12:272.412:512.96:551.17:410.86:468:19Waxing Gibbous9Mon
10Tue1:222.61:253.17:351.18:220.56:458:20Waxing Gibbous10Tue
11Wed2:042.71:553.28:091.18:590.26:458:21Waxing Gibbous11Wed
12Thu2:422.92:223.48:391.19:330.06:448:21Full Moon12Thu
13Fri3:183.02:473.59:091.110:06-0.26:438:22Full Moon13Fri
14Sat3:533.13:133.59:401.110:39-0.36:438:23Full Moon14Sat
15Sun4:283.13:403.610:111.111:12-0.46:428:23Full Moon15Sun
16Mon5:053.24:103.710:451.111:46-0.46:428:24Waning Gibbous16Mon
17Tue5:443.14:443.711:221.26:418:25Waning Gibbous17Tue
18Wed6:273.15:233.612:24-0.412:041.36:408:25Waning Gibbous18Wed
19Thu7:143.06:103.41:06-0.212:541.36:408:26Waning Gibbous19Thu
20Fri8:073.07:103.11:56-0.11:571.46:398:26Third Quarter20Fri
21Sat9:082.98:342.82:530.23:171.46:398:27Third Quarter21Sat
22Sun10:123.010:212.73:580.54:491.16:388:28Third Quarter22Sun
23Mon11:133.211:582.85:060.76:120.76:388:28Waning Crescent23Mon
24Tue12:073.46:110.97:200.36:388:29Waning Crescent24Tue
25Wed1:122.912:553.57:101.08:16-0.16:378:29Waning Crescent25Wed
26Thu2:123.11:393.78:011.19:07-0.56:378:30Waning Crescent26Thu
27Fri3:053.22:203.88:481.29:54-0.66:378:31New Moon27Fri
28Sat3:523.33:003.99:311.210:38-0.76:368:31New Moon28Sat
29Sun4:373.23:383.910:111.311:20-0.66:368:32New Moon29Sun
30Mon5:183.14:143.810:501.36:368:32Waxing Crescent30Mon
31Tue5:583.04:513.612:00-0.411:29 AM1.36:358:33Waxing Crescent31Tue
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 10:51 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 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