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 1h 10m 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 - Mar 2033

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue2:203.42:563.39:13-0.69:27-0.27:026:35New Moon1Tue
2Wed3:083.43:273.49:48-0.410:10-0.47:006:36New Moon2Wed
3Thu3:543.33:563.410:22-0.110:55-0.56:596:37Waxing Crescent3Thu
4Fri4:423.04:263.310:540.311:42-0.56:586:38Waxing Crescent4Fri
5Sat5:332.64:563.211:250.76:576:38Waxing Crescent5Sat
6Sun6:312.35:283.112:35-0.311:57 AM1.06:566:39First Quarter6Sun
7Mon7:481.96:072.81:40-0.112:351.36:556:40First Quarter7Mon
8Tue9:391.87:072.53:050.11:351.66:546:40First Quarter8Tue
9Wed11:182.09:202.34:410.23:301.76:526:41First Quarter9Wed
10Thu12:112.25:570.15:321.56:516:42Waxing Gibbous10Thu
11Fri12:472.46:500.06:401.26:506:42Waxing Gibbous11Fri
12Sat12:172.61:172.77:290.07:250.86:496:43Waxing Gibbous12Sat
13Sun1:012.82:452.99:010.09:030.57:487:44Waxing Gibbous13Sun
14Mon2:372.93:113.09:280.09:370.37:477:44Full Moon14Mon
15Tue3:113.03:353.19:530.110:090.17:457:45Full Moon15Tue
16Wed3:423.03:583.210:150.110:41-0.17:447:45Full Moon16Wed
17Thu4:143.04:203.210:380.211:12-0.17:437:46Full Moon17Thu
18Fri4:473.04:413.311:010.311:43-0.27:427:47Waning Gibbous18Fri
19Sat5:222.95:033.211:280.47:407:47Waning Gibbous19Sat
20Sun6:012.85:283.212:17-0.211:58 AM0.67:397:48Waning Gibbous20Sun
21Mon6:462.65:583.112:55-0.112:320.97:387:49Waning Gibbous21Mon
22Tue7:452.46:353.01:430.01:151.17:377:49Third Quarter22Tue
23Wed9:042.27:282.82:460.12:141.47:367:50Third Quarter23Wed
24Thu10:412.38:552.64:080.13:441.67:347:50Third Quarter24Thu
25Fri12:012.55:320.15:321.57:337:51Third Quarter25Fri
26Sat12:562.86:41-0.16:551.17:327:52Waning Crescent26Sat
27Sun12:262.81:383.07:37-0.27:550.77:317:52Waning Crescent27Sun
28Mon1:313.12:153.38:25-0.28:450.27:307:53Waning Crescent28Mon
29Tue2:263.42:493.49:07-0.29:31-0.27:287:53New Moon29Tue
30Wed3:163.53:223.69:460.010:15-0.57:277:54New Moon30Wed
31Thu4:043.53:533.610:220.210:59-0.77:267:55New Moon31Thu
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