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

TIDE TIMES for Saturday, June 20, 2026
The tide is currently falling in Key Biscayne, Biscayne Bay, FL.
Next low tide : in 4h 15m at 8:58 am (-0.1 ft)
Next high tide : 2:39 pm (2.0 ft)
Sunset today : 8:14 pm
Sunrise tomorrow : 6:29 am
Moon phase : First Quarter (37% illuminated)
Tide Station Location : Station #8723232
Common Questions About Tides

Key Biscayne, Biscayne Bay, FL Tides - Jan 2021

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri10:532.110:591.94:45-0.25:160.17:075:41Waning Gibbous1Fri
2Sat11:362.111:461.95:29-0.26:010.17:075:42Waning Gibbous2Sat
3Sun12:192.06:16-0.16:490.07:075:43Waning Gibbous3Sun
4Mon12:381.91:062.07:08-0.17:430.07:075:43Third Quarter4Mon
5Tue1:341.91:561.98:060.08:41-0.17:085:44Third Quarter5Tue
6Wed2:351.92:511.99:090.19:43-0.27:085:45Third Quarter6Wed
7Thu3:401.93:511.910:150.210:45-0.37:085:45Third Quarter7Thu
8Fri4:472.04:541.911:200.111:46-0.47:085:46Waning Crescent8Fri
9Sat5:512.15:571.912:210.17:085:47Waning Crescent9Sat
10Sun6:512.16:572.012:44-0.51:180.07:085:48Waning Crescent10Sun
11Mon7:472.27:522.01:40-0.52:13-0.17:085:48New Moon11Mon
12Tue8:382.28:452.12:33-0.63:04-0.17:085:49New Moon12Tue
13Wed9:272.39:342.13:24-0.63:54-0.17:085:50New Moon13Wed
14Thu10:122.210:222.14:13-0.54:42-0.27:085:51New Moon14Thu
15Fri10:562.211:082.05:00-0.45:30-0.17:085:51Waxing Crescent15Fri
16Sat11:382.111:541.95:47-0.36:17-0.17:085:52Waxing Crescent16Sat
17Sun12:181.96:34-0.17:030.07:085:53Waxing Crescent17Sun
18Mon12:391.812:591.87:210.07:510.07:085:54Waxing Crescent18Mon
19Tue1:261.71:401.78:100.28:390.17:085:54First Quarter19Tue
20Wed2:151.62:241.69:020.39:300.17:075:55First Quarter20Wed
21Thu3:081.63:121.59:570.410:220.17:075:56First Quarter21Thu
22Fri4:051.54:061.510:520.411:150.17:075:57First Quarter22Fri
23Sat5:031.65:031.511:470.47:075:57Waxing Gibbous23Sat
24Sun6:001.65:591.512:050.012:370.37:075:58Waxing Gibbous24Sun
25Mon6:521.76:521.612:53-0.11:240.37:065:59Waxing Gibbous25Mon
26Tue7:401.87:411.71:38-0.22:090.27:066:00Waxing Gibbous26Tue
27Wed8:251.98:281.82:22-0.32:510.17:066:00Full Moon27Wed
28Thu9:082.09:131.93:04-0.43:330.07:056:01Full Moon28Thu
29Fri9:502.19:591.93:46-0.44:14-0.17:056:02Full Moon29Fri
30Sat10:312.110:452.04:30-0.54:57-0.27:046:03Waning Gibbous30Sat
31Sun11:132.111:322.05:14-0.45:42-0.37:046:03Waning Gibbous31Sun
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 11:48 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 37% 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 First Quarter (37% 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