Tides Today & Tomorrow in Key Biscayne, Biscayne Bay, FL

TIDE TIMES for Sunday, July 12, 2026
The tide is currently falling in Key Biscayne, Biscayne Bay, FL.
Next low tide : in 4h 07m at 2:36 pm (-0.5 ft)
Next high tide : 8:46 pm (2.3 ft)
Sunset today : 8:15 pm
Sunrise tomorrow : 6:37 am
Moon phase : Waning Crescent (5% illuminated)
Tide Station Location : Station #8723232
Common Questions About Tides

Key Biscayne, Biscayne Bay, FL Tides - Jul 2064

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue11:522.06:160.16:31-0.16:338:16Waning Gibbous1Tue
2Wed12:232.112:361.97:010.17:160.06:338:16Waning Gibbous2Wed
3Thu1:022.01:201.97:460.18:000.16:348:16Waning Gibbous3Thu
4Fri1:401.92:041.88:300.28:460.36:348:16Third Quarter4Fri
5Sat2:181.82:511.79:150.29:340.46:358:16Third Quarter5Sat
6Sun2:591.73:401.710:020.210:250.56:358:15Third Quarter6Sun
7Mon3:431.74:331.710:510.211:180.56:358:15Third Quarter7Mon
8Tue4:331.65:301.711:410.26:368:15Third Quarter8Tue
9Wed5:271.66:281.712:120.612:320.16:368:15Waning Crescent9Wed
10Thu6:251.77:241.81:050.51:220.16:378:15Waning Crescent10Thu
11Fri7:211.78:171.91:550.52:110.06:378:15Waning Crescent11Fri
12Sat8:151.89:062.12:430.42:58-0.16:388:15New Moon12Sat
13Sun9:071.99:522.23:300.33:45-0.26:388:14New Moon13Sun
14Mon9:562.010:372.24:150.24:31-0.36:398:14New Moon14Mon
15Tue10:452.111:212.35:010.05:18-0.36:398:14New Moon15Tue
16Wed11:352.25:47-0.16:05-0.36:408:13Waxing Crescent16Wed
17Thu12:052.312:252.26:35-0.26:55-0.26:408:13Waxing Crescent17Thu
18Fri12:492.31:172.27:24-0.27:47-0.16:408:13Waxing Crescent18Fri
19Sat1:352.22:122.28:17-0.28:430.16:418:12First Quarter19Sat
20Sun2:252.13:092.19:13-0.29:430.26:418:12First Quarter20Sun
21Mon3:182.04:122.110:13-0.210:460.36:428:12First Quarter21Mon
22Tue4:172.05:172.011:15-0.211:500.46:428:11First Quarter22Tue
23Wed5:211.96:232.012:18-0.26:438:11Waxing Gibbous23Wed
24Thu6:271.97:262.112:530.41:18-0.26:438:10Waxing Gibbous24Thu
25Fri7:302.08:222.11:520.32:15-0.26:448:10Waxing Gibbous25Fri
26Sat8:262.09:122.22:470.33:08-0.26:448:09Full Moon26Sat
27Sun9:172.19:562.23:370.23:56-0.26:458:09Full Moon27Sun
28Mon10:042.110:372.24:240.24:41-0.16:458:08Full Moon28Mon
29Tue10:472.111:142.25:070.15:23-0.16:468:08Full Moon29Tue
30Wed11:282.111:502.15:490.16:040.06:468:07Waning Gibbous30Wed
31Thu12:072.16:280.16:430.16:478:06Waning Gibbous31Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8723232)

Common Questions About Key Biscayne, Biscayne Bay, FL Tides

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What time does the tide turn (slack tide) in Key Biscayne, Biscayne Bay, FL today?

Slack tide in Key Biscayne, Biscayne Bay, FL is approximately 5:41 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 Key Biscayne, Biscayne Bay, FL?

Key Biscayne, Biscayne Bay, FL is currently in a spring phase. Tonight's moon is 5% 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 Key Biscayne, Biscayne Bay, 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 Key Biscayne, Biscayne Bay, FL?

Tide predictions for Key Biscayne, Biscayne Bay, 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 Key Biscayne, Biscayne Bay, FL?

Tide data for Key Biscayne, Biscayne Bay, FL is sourced from NOAA Station #8723232. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8723232.

What is the moon phase in Key Biscayne, Biscayne Bay, FL tonight?

Tonight the moon over Key Biscayne, Biscayne Bay, FL is Waning Crescent (5% illuminated). This places Key Biscayne, Biscayne Bay, 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