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 3h 00m at 1:53 pm (1.3 ft)
Next high tide : 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 - Jan 2033

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat1:403.23:153.09:14-1.19:010.87:335:48New Moon1Sat
2Sun2:233.33:513.09:52-1.19:430.77:335:48New Moon2Sun
3Mon3:063.34:273.010:30-0.910:280.57:335:49Waxing Crescent3Mon
4Tue3:533.25:033.011:08-0.711:160.47:335:50Waxing Crescent4Tue
5Wed4:433.05:402.911:47-0.47:335:51Waxing Crescent5Wed
6Thu5:402.76:192.912:110.312:290.07:335:51First Quarter6Thu
7Fri6:512.37:052.81:150.31:140.57:335:52First Quarter7Fri
8Sat8:242.08:002.72:330.22:090.87:335:53First Quarter8Sat
9Sun10:111.99:082.74:000.03:181.17:335:54First Quarter9Sun
10Mon11:372.110:222.75:21-0.24:371.37:335:55Waxing Gibbous10Mon
11Tue12:372.36:26-0.55:501.37:335:55Waxing Gibbous11Tue
12Wed1:242.57:19-0.76:501.17:335:56Waxing Gibbous12Wed
13Thu12:232.92:022.68:04-0.87:391.07:335:57Full Moon13Thu
14Fri1:093.02:372.78:43-0.88:220.87:335:58Full Moon14Fri
15Sat1:503.03:092.89:17-0.79:010.77:335:59Full Moon15Sat
16Sun2:273.03:392.89:48-0.69:390.57:336:00Full Moon16Sun
17Mon3:023.04:082.810:16-0.510:160.47:336:00Waning Gibbous17Mon
18Tue3:362.94:362.810:41-0.310:530.47:326:01Waning Gibbous18Tue
19Wed4:122.75:022.811:06-0.111:320.47:326:02Waning Gibbous19Wed
20Thu4:502.55:292.711:330.17:326:03Waning Gibbous20Thu
21Fri5:342.35:582.612:150.412:020.37:326:04Third Quarter21Fri
22Sat6:282.16:312.51:060.412:380.67:316:05Third Quarter22Sat
23Sun7:451.87:142.42:110.41:260.97:316:06Third Quarter23Sun
24Mon9:291.88:162.33:300.32:331.27:306:07Third Quarter24Mon
25Tue11:052.09:392.44:500.14:001.37:306:07Waning Crescent25Tue
26Wed12:122.25:56-0.25:241.37:306:08Waning Crescent26Wed
27Thu1:012.56:49-0.56:301.27:296:09Waning Crescent27Thu
28Fri1:422.77:35-0.87:231.07:296:10Waning Crescent28Fri
29Sat12:473.02:192.98:17-1.08:090.87:286:11New Moon29Sat
30Sun1:353.22:543.08:57-1.18:530.57:276:12New Moon30Sun
31Mon2:223.33:273.19:35-1.09:360.27:276:13New Moon31Mon
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 4:33 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