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

TIDE TIMES for Sunday, August 23, 2026
The tide is currently falling in St. Marks, St. Marks River, FL.
Next low tide : in 2h 53m at 8:08 pm (0.5 ft)
Next high tide (tomorrow) : 2:13 am (2.7 ft)
Sunset today : 8:09 pm
Sunrise tomorrow : 7:08 am
Moon phase : Waxing Gibbous (81% illuminated)
Tide Station Location : Station #8728142
Common Questions About Tides

St. Marks, St. Marks River, FL Tides - Jun 2006

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu7:432.55:593.21:320.112:451.76:358:33Waxing Crescent1Thu
2Fri8:312.56:512.92:130.41:471.76:358:34First Quarter2Fri
3Sat9:242.58:042.52:570.73:081.76:358:34First Quarter3Sat
4Sun10:182.69:512.33:461.04:411.56:358:35First Quarter4Sun
5Mon11:052.711:352.34:401.26:021.26:358:35First Quarter5Mon
6Tue11:462.95:351.47:020.86:348:36Waxing Gibbous6Tue
7Wed12:502.512:223.06:261.57:500.46:348:36Waxing Gibbous7Wed
8Thu1:472.712:543.17:121.68:330.16:348:37Waxing Gibbous8Thu
9Fri2:352.81:263.37:551.79:14-0.26:348:37Waxing Gibbous9Fri
10Sat3:183.01:593.58:341.79:53-0.46:348:37Full Moon10Sat
11Sun4:013.02:343.69:131.710:33-0.66:348:38Full Moon11Sun
12Mon4:423.13:123.89:521.711:14-0.76:348:38Full Moon12Mon
13Tue5:233.13:533.910:321.711:55-0.76:348:39Waning Gibbous13Tue
14Wed6:033.04:383.911:161.66:348:39Waning Gibbous14Wed
15Thu6:443.05:273.712:36-0.612:061.56:348:39Waning Gibbous15Thu
16Fri7:263.06:243.41:19-0.31:031.46:348:40Waning Gibbous16Fri
17Sat8:093.07:343.12:040.02:131.36:358:40Third Quarter17Sat
18Sun8:543.19:062.72:510.53:341.16:358:40Third Quarter18Sun
19Mon9:433.110:532.53:420.95:020.86:358:40Third Quarter19Mon
20Tue10:343.34:391.36:210.46:358:41Waning Crescent20Tue
21Wed12:282.611:27 AM3.45:391.67:280.06:358:41Waning Crescent21Wed
22Thu1:412.712:193.56:391.88:25-0.36:368:41Waning Crescent22Thu
23Fri2:382.81:103.67:341.89:16-0.56:368:41Waning Crescent23Fri
24Sat3:252.91:573.78:251.810:01-0.56:368:41New Moon24Sat
25Sun4:072.92:413.79:101.810:43-0.56:368:42New Moon25Sun
26Mon4:442.93:223.89:531.711:21-0.46:378:42New Moon26Mon
27Tue5:192.94:013.710:331.611:55-0.36:378:42Waxing Crescent27Tue
28Wed5:522.94:383.611:141.56:378:42Waxing Crescent28Wed
29Thu6:242.95:163.512:26-0.111:56 AM1.46:388:42Waxing Crescent29Thu
30Fri6:562.95:563.212:550.212:401.46:388:42Waxing Crescent30Fri
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 11:10 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 spring phase. Tonight's moon is 81% 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 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 Waxing Gibbous (81% illuminated). This places St. Marks, St. Marks River, FL 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