Tides Today & Tomorrow in Boot Key Harbor bridge, FL

TIDE TIMES for Sunday, August 9, 2026
The tide is currently falling in Boot Key Harbor bridge, FL.
Next low tide : in 6h 02m at 1:42 pm (-0.1 ft)
Next high tide : 8:15 pm (1.1 ft)
Sunset today : 8:03 pm
Sunrise tomorrow : 6:56 am
Moon phase : Waning Crescent (13% illuminated)
Tide Station Location : Station #8723971
Common Questions About Tides

Boot Key Harbor bridge, FL Tides - Apr 1951

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun5:561.05:111.810:360.36:166:40Waning Crescent1Sun
2Mon6:321.26:181.812:090.011:51 AM0.26:156:40Waning Crescent2Mon
3Tue7:041.47:131.812:500.012:510.16:146:41Waning Crescent3Tue
4Wed7:341.68:011.81:250.11:410.06:136:41New Moon4Wed
5Thu8:021.88:451.71:570.12:26-0.16:126:42New Moon5Thu
6Fri8:301.99:251.62:280.13:08-0.26:116:42New Moon6Fri
7Sat8:582.010:031.42:580.23:48-0.26:106:42New Moon7Sat
8Sun9:272.010:401.33:270.24:28-0.26:096:43Waxing Crescent8Sun
9Mon9:571.911:181.13:550.35:09-0.26:086:43Waxing Crescent9Mon
10Tue10:291.94:210.35:54-0.26:076:44Waxing Crescent10Tue
11Wed12:011.011:06 AM1.84:450.36:46-0.16:066:44Waxing Crescent11Wed
12Thu12:520.911:48 AM1.75:080.47:470.06:056:45First Quarter12Thu
13Fri2:030.812:401.65:370.58:550.16:046:45First Quarter13Fri
14Sat3:420.81:501.56:510.510:010.16:036:45First Quarter14Sat
15Sun4:491.03:171.59:040.510:560.16:026:46First Quarter15Sun
16Mon5:231.14:361.610:310.511:400.16:016:46Waxing Gibbous16Mon
17Tue5:521.35:411.611:340.36:006:47Waxing Gibbous17Tue
18Wed6:201.56:381.712:160.212:260.26:006:47Waxing Gibbous18Wed
19Thu6:491.77:301.712:490.21:120.05:596:48Waxing Gibbous19Thu
20Fri7:201.98:201.61:210.21:57-0.25:586:48Full Moon20Fri
21Sat7:532.19:101.51:520.22:43-0.35:576:49Full Moon21Sat
22Sun8:292.210:001.42:250.23:29-0.45:566:49Full Moon22Sun
23Mon9:092.310:521.22:590.34:19-0.55:556:49Waning Gibbous23Mon
24Tue9:532.311:461.13:350.35:13-0.45:546:50Waning Gibbous24Tue
25Wed10:432.34:140.36:13-0.35:546:50Waning Gibbous25Wed
26Thu12:470.911:40 AM2.15:010.47:19-0.25:536:51Waning Gibbous26Thu
27Fri1:590.912:472.06:060.48:29-0.15:526:51Third Quarter27Fri
28Sat3:151.02:101.87:380.59:360.05:516:52Third Quarter28Sat
29Sun5:191.24:401.710:170.411:340.16:507:52Third Quarter29Sun
30Mon6:071.46:011.711:410.36:507:53Waning Crescent30Mon
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 4:58 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 spring phase. Tonight's moon is 13% 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 Waning Crescent (13% 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