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 5h 19m 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 - Apr 2033

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri4:513.34:243.710:560.511:43-0.77:257:55Waxing Crescent1Fri
2Sat5:373.14:543.611:280.87:247:56Waxing Crescent2Sat
3Sun6:252.85:253.512:28-0.512:001.07:227:57Waxing Crescent3Sun
4Mon7:182.55:573.21:17-0.312:331.37:217:57Waxing Crescent4Mon
5Tue8:242.26:342.92:130.01:131.57:207:58First Quarter5Tue
6Wed9:542.17:272.63:250.32:151.77:197:58First Quarter6Wed
7Thu11:292.29:332.34:530.54:101.77:187:59First Quarter7Thu
8Fri12:282.46:140.66:141.57:168:00Waxing Gibbous8Fri
9Sat1:082.67:110.67:231.27:158:00Waxing Gibbous9Sat
10Sun1:012.51:402.87:530.68:080.87:148:01Waxing Gibbous10Sun
11Mon1:462.72:083.08:250.68:450.57:138:01Waxing Gibbous11Mon
12Tue2:232.82:353.28:530.69:190.27:128:02Waxing Gibbous12Tue
13Wed2:573.02:593.39:180.69:520.07:118:03Full Moon13Wed
14Thu3:303.03:223.49:420.610:23-0.17:108:03Full Moon14Thu
15Fri4:033.13:443.410:070.710:54-0.27:098:04Full Moon15Fri
16Sat4:373.14:073.510:340.711:25-0.37:078:05Full Moon16Sat
17Sun5:123.14:323.511:040.811:59-0.37:068:05Waning Gibbous17Sun
18Mon5:513.05:003.511:361.07:058:06Waning Gibbous18Mon
19Tue6:362.95:343.412:36-0.212:141.17:048:06Waning Gibbous19Tue
20Wed7:302.76:163.21:22-0.11:001.37:038:07Waning Gibbous20Wed
21Thu8:362.67:123.02:180.02:021.57:028:08Third Quarter21Thu
22Fri9:552.68:402.73:270.23:301.67:018:08Third Quarter22Fri
23Sat11:092.810:372.74:440.25:111.47:008:09Third Quarter23Sat
24Sun12:073.05:560.36:341.06:598:10Waning Crescent24Sun
25Mon12:122.912:543.26:570.37:370.56:588:10Waning Crescent25Mon
26Tue1:213.11:353.57:490.48:300.06:578:11Waning Crescent26Tue
27Wed2:193.32:133.68:350.59:18-0.46:568:12New Moon27Wed
28Thu3:113.42:493.89:170.710:04-0.66:558:12New Moon28Thu
29Fri3:593.43:233.89:550.810:48-0.76:548:13New Moon29Fri
30Sat4:453.33:573.810:311.011:31-0.76:538:13New Moon30Sat
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