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

TIDE TIMES for Sunday, June 21, 2026
The tide is currently rising in Marco, Big Marco River, FL.
Next low tide : 1:28 pm (0.9 ft)
Next high tide : in 3h 15m at 7:24 am (2.4 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 6:35 am
Moon phase : First Quarter (48% illuminated)
Tide Station Location : Station #8724991
Common Questions About Tides

Marco, Big Marco River, FL Tides - Jul 2035

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun10:032.811:312.23:521.04:590.06:388:22Waning Crescent1Sun
2Mon10:533.04:491.15:51-0.46:398:22Waning Crescent2Mon
3Tue12:292.311:43 AM3.25:411.16:42-0.66:398:22Waning Crescent3Tue
4Wed1:222.412:323.36:311.17:33-0.76:398:22New Moon4Wed
5Thu2:122.51:223.47:221.18:23-0.86:408:22New Moon5Thu
6Fri3:002.52:133.38:141.09:12-0.76:408:22New Moon6Fri
7Sat3:462.53:053.29:071.09:59-0.56:418:22Waxing Crescent7Sat
8Sun4:312.53:583.010:001.010:45-0.26:418:22Waxing Crescent8Sun
9Mon5:172.54:542.710:550.911:320.16:418:22Waxing Crescent9Mon
10Tue6:062.55:582.411:570.96:428:22First Quarter10Tue
11Wed6:552.57:082.212:220.41:040.86:428:22First Quarter11Wed
12Thu7:432.58:192.01:130.72:100.76:438:21First Quarter12Thu
13Fri8:312.59:352.02:071.03:150.66:438:21First Quarter13Fri
14Sat9:212.610:542.03:021.14:160.46:448:21Waxing Gibbous14Sat
15Sun10:102.611:532.13:591.25:080.36:448:21Waxing Gibbous15Sun
16Mon10:582.74:511.35:530.16:458:20Waxing Gibbous16Mon
17Tue12:362.111:41 AM2.85:381.36:340.06:458:20Waxing Gibbous17Tue
18Wed1:152.212:222.96:201.27:14-0.16:468:20Full Moon18Wed
19Thu1:512.31:012.97:011.27:54-0.16:468:19Full Moon19Thu
20Fri2:272.31:392.97:411.28:32-0.16:478:19Full Moon20Fri
21Sat3:032.32:172.98:211.19:09-0.16:478:19Full Moon21Sat
22Sun3:382.42:542.99:011.19:440.06:488:18Waning Gibbous22Sun
23Mon4:132.43:312.89:421.110:200.16:488:18Waning Gibbous23Mon
24Tue4:482.44:122.610:241.010:560.36:498:17Waning Gibbous24Tue
25Wed5:242.45:032.411:131.011:350.56:498:17Waning Gibbous25Wed
26Thu6:042.46:132.212:120.96:508:16Third Quarter26Thu
27Fri6:472.57:332.112:210.81:190.76:508:16Third Quarter27Fri
28Sat7:362.68:512.01:141.02:280.56:518:15Third Quarter28Sat
29Sun8:302.710:112.12:151.23:360.26:518:15Third Quarter29Sun
30Mon9:302.911:212.23:201.34:400.06:528:14Waning Crescent30Mon
31Tue10:313.04:251.35:36-0.36:528:14Waning Crescent31Tue
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 10:26 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 neap phase. Tonight's moon is 48% 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 minimum.

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 First Quarter (48% illuminated). This places Marco, Big Marco River, FL in a neap tide cycle, so tidal ranges are near their weekly minimum 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