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

TIDE TIMES for Friday, June 12, 2026
The tide is currently falling in St. Marks, St. Marks River, FL.
Next low tide : in 4h 16m at 8:28 pm (-0.5 ft)
Next high tide (tomorrow) : 2:45 am (3.1 ft)
Sunset today : 8:38 pm
Sunrise tomorrow : 6:34 am
Moon phase : Waning Crescent (9% illuminated)
Tide Station Location : Station #8728142
Common Questions About Tides

St. Marks, St. Marks River, FL Tides - Sep 2029

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat7:223.110:512.42:041.84:211.07:147:59Third Quarter1Sat
2Sun8:312.93:172.05:560.87:147:58Third Quarter2Sun
3Mon12:202.610:24 AM3.04:582.17:020.67:157:56Waning Crescent3Mon
4Tue1:142.811:59 AM3.26:261.97:510.47:157:55Waning Crescent4Tue
5Wed1:533.01:023.47:281.68:310.27:167:54Waning Crescent5Wed
6Thu2:253.21:543.78:171.29:070.27:167:53Waning Crescent6Thu
7Fri2:543.42:423.99:010.89:410.27:177:52New Moon7Fri
8Sat3:213.53:294.09:440.410:130.47:177:50New Moon8Sat
9Sun3:483.64:154.010:260.110:440.67:187:49New Moon9Sun
10Mon4:153.85:023.811:10-0.111:150.97:187:48Waxing Crescent10Mon
11Tue4:423.95:503.511:56-0.211:451.27:197:47Waxing Crescent11Tue
12Wed5:123.96:433.212:46-0.17:197:45Waxing Crescent12Wed
13Thu5:463.87:442.812:171.51:450.17:207:44First Quarter13Thu
14Fri6:253.69:042.512:511.72:570.37:217:43First Quarter14Fri
15Sat7:193.410:482.41:361.94:250.57:217:42First Quarter15Sat
16Sun8:573.12:512.15:530.67:227:40First Quarter16Sun
17Mon12:122.511:17 AM3.14:562.07:020.67:227:39Waxing Gibbous17Mon
18Tue1:012.712:393.26:401.77:520.57:237:38Waxing Gibbous18Tue
19Wed1:362.91:343.47:421.48:310.67:237:37Waxing Gibbous19Wed
20Thu2:073.12:183.58:271.09:030.67:247:35Waxing Gibbous20Thu
21Fri2:343.32:563.69:060.79:310.77:247:34Full Moon21Fri
22Sat3:003.43:303.69:420.59:560.87:257:33Full Moon22Sat
23Sun3:243.54:043.510:150.310:200.97:257:32Full Moon23Sun
24Mon3:473.54:373.510:470.310:451.07:267:30Full Moon24Mon
25Tue4:093.65:113.411:180.311:121.17:277:29Waning Gibbous25Tue
26Wed4:333.55:473.211:510.311:411.37:277:28Waning Gibbous26Wed
27Thu4:583.56:293.012:260.57:287:27Waning Gibbous27Thu
28Fri5:273.47:212.812:141.41:090.67:287:25Waning Gibbous28Fri
29Sat6:033.38:322.612:531.62:060.77:297:24Third Quarter29Sat
30Sun6:503.110:052.61:451.83:250.87:297:23Third Quarter30Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8728142)

Common Questions About St. Marks, St. Marks River, FL Tides

Show All
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 11:36 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 9% 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 Waning Crescent (9% 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