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 3h 28m at 3:50 am (1.5 ft)
Next high tide : 10:06 am (2.9 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 2018

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon6:333.58:542.81:191.52:310.47:307:22Third Quarter1Mon
2Tue7:313.310:272.82:191.73:550.47:307:21Third Quarter2Tue
3Wed8:563.211:482.93:411.85:240.47:317:20Third Quarter3Wed
4Thu10:463.25:161.86:390.37:327:18Waning Crescent4Thu
5Fri12:473.112:163.46:371.47:380.27:327:17Waning Crescent5Fri
6Sat1:333.31:223.67:391.18:270.27:337:16Waning Crescent6Sat
7Sun2:123.42:173.88:310.79:090.37:337:15New Moon7Sun
8Mon2:473.63:053.89:180.39:460.57:347:14New Moon8Mon
9Tue3:193.63:503.810:010.110:190.77:357:12New Moon9Tue
10Wed3:493.64:323.610:420.010:491.07:357:11New Moon10Wed
11Thu4:163.65:143.411:220.011:171.27:367:10Waxing Crescent11Thu
12Fri4:413.55:553.212:020.17:367:09Waxing Crescent12Fri
13Sat5:063.46:382.912:440.27:377:08Waxing Crescent13Sat
14Sun5:323.27:292.712:131.61:310.57:387:07Waxing Crescent14Sun
15Mon6:033.08:362.512:481.72:310.77:387:06First Quarter15Mon
16Tue6:462.810:062.41:371.93:490.97:397:05First Quarter16Tue
17Wed8:122.611:282.53:002.05:131.07:407:04First Quarter17Wed
18Thu10:542.65:001.96:210.97:407:02First Quarter18Thu
19Fri12:222.712:142.76:281.67:110.87:417:01Waxing Gibbous19Fri
20Sat1:012.91:053.07:211.37:500.77:427:00Waxing Gibbous20Sat
21Sun1:333.11:463.28:011.08:230.77:426:59Waxing Gibbous21Sun
22Mon2:003.22:243.38:370.68:530.77:436:58Waxing Gibbous22Mon
23Tue2:263.33:013.59:110.49:220.77:446:57Full Moon23Tue
24Wed2:503.43:393.59:450.19:520.87:456:56Full Moon24Wed
25Thu3:153.54:183.610:20-0.110:230.97:456:55Full Moon25Thu
26Fri3:423.64:593.510:56-0.310:561.07:466:54Waning Gibbous26Fri
27Sat4:113.75:443.411:36-0.311:321.27:476:54Waning Gibbous27Sat
28Sun4:453.76:343.112:20-0.37:486:53Waning Gibbous28Sun
29Mon5:243.67:332.912:131.41:13-0.17:486:52Waning Gibbous29Mon
30Tue6:123.48:442.81:031.52:170.17:496:51Third Quarter30Tue
31Wed7:153.110:042.72:081.63:340.37:506:50Third Quarter31Wed
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 6:58 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 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