Tides Today & Tomorrow in Boot Key Harbor bridge, FL

TIDE TIMES for Sunday, August 23, 2026
The tide is currently falling in Boot Key Harbor bridge, FL.
Next low tide (tomorrow) : in 2h 30m at 12:20 am (0.7 ft)
Next high tide (tomorrow) : 6:45 am (2.2 ft)
Sunset today : 7:51 pm
Sunrise tomorrow : 7:02 am
Moon phase : Waxing Gibbous (81% illuminated)
Tide Station Location : Station #8723971
Common Questions About Tides

Boot Key Harbor bridge, FL Tides - Sep 1922

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri5:532.27:261.512:570.37:057:43Waxing Gibbous1Fri
2Sat6:522.38:081.612:210.61:460.37:057:42Waxing Gibbous2Sat
3Sun7:422.38:421.71:170.52:260.37:057:41Waxing Gibbous3Sun
4Mon8:252.39:111.92:060.53:000.37:067:40Full Moon4Mon
5Tue9:032.39:382.02:500.53:330.37:067:39Full Moon5Tue
6Wed9:402.310:062.13:290.44:030.37:067:38Full Moon6Wed
7Thu10:152.310:342.14:070.44:330.47:077:37Full Moon7Thu
8Fri10:502.211:042.24:440.45:020.47:077:36Waning Gibbous8Fri
9Sat11:272.111:352.25:210.45:290.57:087:35Waning Gibbous9Sat
10Sun12:062.06:010.45:570.57:087:34Waning Gibbous10Sun
11Mon12:082.212:481.86:450.46:270.67:087:33Waning Gibbous11Mon
12Tue12:452.21:381.77:370.47:020.77:097:32Third Quarter12Tue
13Wed1:272.22:411.58:390.47:480.77:097:31Third Quarter13Wed
14Thu2:212.24:021.59:480.48:520.77:097:30Third Quarter14Thu
15Fri3:292.25:231.510:580.410:100.77:107:29Third Quarter15Fri
16Sat4:452.36:251.612:010.47:107:28Waning Crescent16Sat
17Sun5:572.47:131.812:550.37:107:27Waning Crescent17Sun
18Mon7:002.57:552.012:310.61:430.37:117:26Waning Crescent18Mon
19Tue7:572.68:352.21:300.52:260.37:117:25New Moon19Tue
20Wed8:512.79:152.42:250.33:070.37:127:23New Moon20Wed
21Thu9:432.69:552.53:170.23:470.37:127:22New Moon21Thu
22Fri10:342.510:362.64:080.14:270.47:127:21New Moon22Fri
23Sat11:242.411:192.75:000.15:080.57:137:20Waxing Crescent23Sat
24Sun11:162.211:052.74:540.14:500.56:136:19Waxing Crescent24Sun
25Mon12:101.95:520.25:360.66:136:18Waxing Crescent25Mon
26Tue1:121.86:550.36:300.76:146:17First Quarter26Tue
27Wed12:512.52:281.68:040.47:360.76:146:16First Quarter27Wed
28Thu1:582.43:541.69:160.58:520.86:146:15First Quarter28Thu
29Fri3:162.35:051.710:240.510:070.86:156:14First Quarter29Fri
30Sat4:312.35:541.811:230.511:130.76:156:13Waxing Gibbous30Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8723971)

Common Questions About Boot Key Harbor bridge, FL Tides

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What time does the tide turn (slack tide) in Boot Key Harbor bridge, FL today?

Slack tide in Boot Key Harbor bridge, FL is approximately 3:32 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 Boot Key Harbor bridge, FL?

Boot Key Harbor bridge, FL is currently in a spring phase. Tonight's moon is 81% 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 Boot Key Harbor bridge, 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 Boot Key Harbor bridge, FL?

Tide predictions for Boot Key Harbor bridge, 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 Boot Key Harbor bridge, FL?

Tide data for Boot Key Harbor bridge, FL is sourced from NOAA Station #8723971. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8723971.

What is the moon phase in Boot Key Harbor bridge, FL tonight?

Tonight the moon over Boot Key Harbor bridge, FL is Waxing Gibbous (81% illuminated). This places Boot Key Harbor bridge, 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