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

TIDE TIMES for Tuesday, June 30, 2026
The tide is currently falling in St. Marks, St. Marks River, FL.
Next low tide : in 4h 58m at 9:51 am (1.6 ft)
Next high tide : 3:23 pm (3.6 ft)
Sunset today : 8:42 pm
Sunrise tomorrow : 6:38 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #8728142
Common Questions About Tides

St. Marks, St. Marks River, FL Tides - Jun 2047

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat9:203.09:102.73:000.43:521.16:358:33First Quarter1Sat
2Sun10:133.110:532.73:590.85:140.86:358:34First Quarter2Sun
3Mon11:053.25:031.16:270.36:358:34Waxing Gibbous3Mon
4Tue12:242.811:56 AM3.46:061.37:31-0.16:358:35Waxing Gibbous4Tue
5Wed1:373.012:453.67:061.58:28-0.56:358:35Waxing Gibbous5Wed
6Thu2:373.11:333.87:591.69:21-0.86:348:36Full Moon6Thu
7Fri3:303.22:193.98:481.710:11-0.96:348:36Full Moon7Fri
8Sat4:183.13:054.09:341.610:58-0.96:348:37Full Moon8Sat
9Sun5:023.13:493.910:171.611:43-0.76:348:37Full Moon9Sun
10Mon5:423.04:323.811:011.56:348:37Waning Gibbous10Mon
11Tue6:202.95:153.612:24-0.411:45 AM1.56:348:38Waning Gibbous11Tue
12Wed6:572.86:003.31:03-0.112:321.46:348:38Waning Gibbous12Wed
13Thu7:332.86:512.91:400.31:271.46:348:39Third Quarter13Thu
14Fri8:112.87:562.52:160.72:341.46:348:39Third Quarter14Fri
15Sat8:532.89:322.32:531.13:581.36:348:39Third Quarter15Sat
16Sun9:422.811:222.23:381.45:291.16:358:40Third Quarter16Sun
17Mon10:382.94:321.66:450.86:358:40Waning Crescent17Mon
18Tue12:462.311:34 AM3.05:341.77:420.56:358:40Waning Crescent18Tue
19Wed1:442.512:253.16:351.88:280.36:358:41Waning Crescent19Wed
20Thu2:292.61:093.27:291.89:090.16:358:41Waning Crescent20Thu
21Fri3:072.81:483.48:161.79:45-0.16:358:41New Moon21Fri
22Sat3:432.92:253.58:581.610:19-0.26:368:41New Moon22Sat
23Sun4:173.03:003.69:371.510:50-0.36:368:41New Moon23Sun
24Mon4:513.13:363.710:161.511:20-0.46:368:42New Moon24Mon
25Tue5:233.24:143.810:561.411:50-0.46:378:42Waxing Crescent25Tue
26Wed5:553.24:553.711:381.26:378:42Waxing Crescent26Wed
27Thu6:273.25:413.612:22-0.212:231.16:378:42Waxing Crescent27Thu
28Fri7:003.36:333.312:560.01:151.06:378:42Waxing Crescent28Fri
29Sat7:353.37:373.01:330.32:140.96:388:42First Quarter29Sat
30Sun8:153.38:582.72:160.73:250.76:388:42First Quarter30Sun
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 12:37 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 100% 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 Full Moon (100% 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