Tides Today & Tomorrow in Marco, Big Marco River, FL

TIDE TIMES for Thursday, July 23, 2026
The tide is currently falling in Marco, Big Marco River, FL.
Next low tide : in 1h 46m at 2:28 am (1.5 ft)
Next high tide : 8:40 am (2.5 ft)
Sunset today : 8:18 pm
Sunrise tomorrow : 6:48 am
Moon phase : Waxing Gibbous (71% illuminated)
Tide Station Location : Station #8724991
Common Questions About Tides

Marco, Big Marco River, FL Tides - Aug 1978

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:522.211:59 AM2.95:541.36:500.06:528:13Waning Crescent1Tue
2Wed1:252.312:402.96:351.27:280.06:538:12New Moon2Wed
3Thu1:582.31:203.07:161.18:060.06:538:12New Moon3Thu
4Fri2:312.41:593.07:561.08:420.06:548:11New Moon4Fri
5Sat3:042.42:372.98:361.09:160.16:548:10New Moon5Sat
6Sun3:372.53:152.89:160.99:500.36:558:10Waxing Crescent6Sun
7Mon4:082.53:542.79:560.910:230.56:558:09Waxing Crescent7Mon
8Tue4:402.54:372.510:380.810:560.76:568:08Waxing Crescent8Tue
9Wed5:122.55:342.311:280.811:340.96:568:08Waxing Crescent9Wed
10Thu5:492.56:472.112:290.76:578:07First Quarter10Thu
11Fri6:362.68:042.112:211.11:370.66:578:06First Quarter11Fri
12Sat7:342.79:222.01:201.32:460.46:588:05First Quarter12Sat
13Sun8:382.810:382.12:281.43:550.26:588:04Waxing Gibbous13Sun
14Mon9:462.911:382.33:391.44:560.06:598:04Waxing Gibbous14Mon
15Tue10:503.14:451.35:50-0.26:598:03Waxing Gibbous15Tue
16Wed12:272.411:48 AM3.35:411.26:40-0.36:598:02Waxing Gibbous16Wed
17Thu1:102.612:423.46:331.07:27-0.37:008:01Full Moon17Thu
18Fri1:522.71:343.47:250.88:13-0.27:008:00Full Moon18Fri
19Sat2:322.82:263.38:160.68:570.07:017:59Full Moon19Sat
20Sun3:122.83:173.29:060.59:390.27:017:58Waning Gibbous20Sun
21Mon3:512.94:092.99:560.410:190.57:027:57Waning Gibbous21Mon
22Tue4:312.85:032.610:470.511:010.87:027:56Waning Gibbous22Tue
23Wed5:142.86:042.411:430.511:461.17:037:55Third Quarter23Wed
24Thu6:022.77:132.212:440.67:037:54Third Quarter24Thu
25Fri6:562.68:252.112:391.31:500.67:037:53Third Quarter25Fri
26Sat7:542.69:482.01:401.52:570.67:047:52Third Quarter26Sat
27Sun8:552.611:052.12:451.64:020.67:047:51Waning Crescent27Sun
28Mon9:562.711:482.23:501.54:570.57:057:50Waning Crescent28Mon
29Tue10:522.84:471.45:430.47:057:49Waning Crescent29Tue
30Wed12:202.311:40 AM2.95:341.36:220.37:067:48Waning Crescent30Wed
31Thu12:502.412:233.06:151.17:000.37:067:47Waning Crescent31Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8724991)

Common Questions About Marco, Big Marco River, FL Tides

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What time does the tide turn (slack tide) in Marco, Big Marco River, FL today?

Slack tide in Marco, Big Marco River, FL is approximately 5:34 am — 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 Marco, Big Marco River, FL?

Marco, Big Marco River, FL is currently in a transitional phase. Tonight's moon is 71% 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 Marco, Big Marco 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 Marco, Big Marco River, FL?

Tide predictions for Marco, Big Marco 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 Marco, Big Marco River, FL?

Tide data for Marco, Big Marco River, FL is sourced from NOAA Station #8724991. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8724991.

What is the moon phase in Marco, Big Marco River, FL tonight?

Tonight the moon over Marco, Big Marco River, FL is Waxing Gibbous (71% illuminated). This places Marco, Big Marco 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