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

TIDE TIMES for Friday, July 24, 2026
The tide is currently falling in Key Biscayne, Biscayne Bay, FL.
Next low tide : in 19m at 12:30 am (0.6 ft)
Next high tide : 5:47 am (1.7 ft)
Sunset today : 8:11 pm
Sunrise tomorrow : 6:43 am
Moon phase : Waxing Gibbous (79% illuminated)
Tide Station Location : Station #8723232
Common Questions About Tides

Key Biscayne, Biscayne Bay, FL Tides - May 2075

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed10:322.311:102.54:48-0.15:05-0.56:437:51Full Moon1Wed
2Thu11:192.311:592.55:36-0.15:54-0.56:427:52Waning Gibbous2Thu
3Fri12:092.36:26-0.16:46-0.56:427:52Waning Gibbous3Fri
4Sat12:512.41:022.27:200.07:42-0.46:417:53Waning Gibbous4Sat
5Sun1:462.32:002.18:180.18:43-0.26:407:54Waning Gibbous5Sun
6Mon2:442.23:022.09:220.29:49-0.16:407:54Third Quarter6Mon
7Tue3:462.14:092.010:290.210:570.06:397:55Third Quarter7Tue
8Wed4:502.15:182.011:350.26:387:55Third Quarter8Wed
9Thu5:512.06:232.012:020.112:360.16:387:56Waning Crescent9Thu
10Fri6:482.17:212.11:020.11:300.06:377:56Waning Crescent10Fri
11Sat7:392.18:132.21:560.12:18-0.16:377:57Waning Crescent11Sat
12Sun8:252.18:582.22:440.13:03-0.26:367:57Waning Crescent12Sun
13Mon9:072.19:392.23:290.13:44-0.26:357:58New Moon13Mon
14Tue9:462.110:182.24:100.14:23-0.26:357:58New Moon14Tue
15Wed10:232.010:562.24:500.15:01-0.26:347:59New Moon15Wed
16Thu10:592.011:332.15:280.25:38-0.16:347:59New Moon16Thu
17Fri11:361.96:050.26:150.06:338:00Waxing Crescent17Fri
18Sat12:112.112:141.96:430.36:520.06:338:00Waxing Crescent18Sat
19Sun12:502.012:541.87:220.47:310.16:338:01Waxing Crescent19Sun
20Mon1:311.91:371.78:040.48:150.26:328:02Waxing Crescent20Mon
21Tue2:161.82:261.78:520.59:040.36:328:02First Quarter21Tue
22Wed3:041.83:211.79:450.510:020.36:318:03First Quarter22Wed
23Thu3:561.84:211.710:430.411:030.36:318:03First Quarter23Thu
24Fri4:501.85:241.811:400.36:318:04First Quarter24Fri
25Sat5:461.96:251.912:030.312:330.16:308:04Waxing Gibbous25Sat
26Sun6:411.97:222.11:000.21:25-0.16:308:05Waxing Gibbous26Sun
27Mon7:342.08:172.21:540.12:15-0.36:308:05Waxing Gibbous27Mon
28Tue8:262.19:092.42:460.03:05-0.56:308:06Full Moon28Tue
29Wed9:182.210:012.53:36-0.13:55-0.66:298:06Full Moon29Wed
30Thu10:092.310:522.54:27-0.14:45-0.66:298:07Full Moon30Thu
31Fri11:012.311:442.55:18-0.25:38-0.66:298:07Full Moon31Fri
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 3:08 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 Key Biscayne, Biscayne Bay, FL?

Key Biscayne, Biscayne Bay, FL is currently in a transitional phase. Tonight's moon is 79% 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 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 Waxing Gibbous (79% illuminated). This places Key Biscayne, Biscayne Bay, 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