Tides Today & Tomorrow in Boot Key Harbor bridge, FL

TIDE TIMES for Saturday, August 22, 2026
The tide is currently rising in Boot Key Harbor bridge, FL.
Next low tide : 11:14 pm (0.7 ft)
Next high tide : in 4h 55m at 7:46 pm (1.2 ft)
Sunset today : 7:52 pm
Sunrise tomorrow : 7:01 am
Moon phase : Waxing Gibbous (73% illuminated)
Tide Station Location : Station #8723971
Common Questions About Tides

Boot Key Harbor bridge, FL Tides - Jul 1925

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed5:071.86:081.211:590.111:310.36:388:17Waxing Gibbous1Wed
2Thu5:551.97:181.212:58-0.16:388:17Waxing Gibbous2Thu
3Fri6:442.18:201.212:200.31:53-0.26:398:17Waxing Gibbous3Fri
4Sat7:342.39:151.21:110.32:44-0.36:398:17Full Moon4Sat
5Sun8:262.410:051.22:010.33:35-0.46:408:17Full Moon5Sun
6Mon9:182.510:531.32:520.24:24-0.46:408:17Full Moon6Mon
7Tue10:122.511:391.33:430.25:12-0.46:408:17Full Moon7Tue
8Wed11:052.44:370.26:01-0.36:418:17Waning Gibbous8Wed
9Thu12:251.412:002.25:350.26:51-0.26:418:17Waning Gibbous9Thu
10Fri1:111.512:552.06:390.27:400.06:428:17Waning Gibbous10Fri
11Sat1:591.61:551.87:510.38:300.16:428:16Third Quarter11Sat
12Sun2:491.73:031.59:070.29:190.26:428:16Third Quarter12Sun
13Mon3:431.74:221.310:220.210:090.36:438:16Third Quarter13Mon
14Tue4:381.85:451.211:330.210:590.36:438:16Third Quarter14Tue
15Wed5:311.96:571.112:370.16:448:16Waning Crescent15Wed
16Thu6:201.97:561.11:330.06:448:15Waning Crescent16Thu
17Fri7:052.08:431.112:380.42:200.06:458:15Waning Crescent17Fri
18Sat7:462.09:221.11:240.43:00-0.16:458:15Waning Crescent18Sat
19Sun8:252.19:561.22:080.43:38-0.16:468:14New Moon19Sun
20Mon9:032.110:281.22:480.44:13-0.16:468:14New Moon20Mon
21Tue9:412.111:001.33:270.44:47-0.16:478:14New Moon21Tue
22Wed10:192.111:331.44:040.45:20-0.16:478:13New Moon22Wed
23Thu10:572.14:420.45:530.06:478:13Waxing Crescent23Thu
24Fri12:071.511:36 AM2.05:230.46:270.06:488:13Waxing Crescent24Fri
25Sat12:421.512:171.96:080.47:010.16:488:12Waxing Crescent25Sat
26Sun1:181.61:011.77:020.47:380.26:498:12Waxing Crescent26Sun
27Mon1:561.71:541.58:030.48:170.36:498:11First Quarter27Mon
28Tue2:381.73:001.49:120.39:020.36:508:11First Quarter28Tue
29Wed3:271.84:251.210:230.29:530.46:508:10First Quarter29Wed
30Thu4:222.05:531.211:330.110:490.46:518:10Waxing Gibbous30Thu
31Fri5:222.17:081.212:370.06:518:09Waxing Gibbous31Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8723971)

Common Questions About Boot Key Harbor bridge, FL Tides

Show All
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 9:30 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 Boot Key Harbor bridge, FL?

Boot Key Harbor bridge, FL is currently in a transitional phase. Tonight's moon is 73% 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 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 (73% illuminated). This places Boot Key Harbor bridge, 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