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 38m 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 - Oct 2020

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu9:492.610:042.54:040.44:240.57:137:07Full Moon1Thu
2Fri10:262.610:372.54:400.45:000.57:137:05Full Moon2Fri
3Sat11:012.611:112.45:140.45:340.67:147:04Full Moon3Sat
4Sun11:382.511:452.45:470.46:090.77:147:03Waning Gibbous4Sun
5Mon12:152.56:200.56:430.87:147:02Waning Gibbous5Mon
6Tue12:202.312:542.46:540.67:190.97:157:01Waning Gibbous6Tue
7Wed12:572.21:382.37:320.68:011.07:157:00Waning Gibbous7Wed
8Thu1:392.22:272.38:170.78:521.07:166:59Third Quarter8Thu
9Fri2:292.13:242.29:130.79:541.17:166:58Third Quarter9Fri
10Sat3:302.14:262.210:190.711:031.07:176:57Third Quarter10Sat
11Sun4:382.15:302.311:280.77:176:56Third Quarter11Sun
12Mon5:472.36:292.412:070.912:320.67:186:55Waning Crescent12Mon
13Tue6:502.57:232.61:050.71:300.47:186:54Waning Crescent13Tue
14Wed7:482.78:132.71:580.42:240.37:196:53Waning Crescent14Wed
15Thu8:412.89:012.82:480.23:150.27:196:52New Moon15Thu
16Fri9:333.09:492.93:360.04:040.17:206:51New Moon16Fri
17Sat10:243.110:372.94:24-0.14:540.27:206:51New Moon17Sat
18Sun11:143.111:252.85:13-0.25:440.27:216:50Waxing Crescent18Sun
19Mon12:053.06:03-0.16:350.37:216:49Waxing Crescent19Mon
20Tue12:162.712:582.96:560.07:300.57:226:48Waxing Crescent20Tue
21Wed1:092.61:542.77:530.28:300.67:226:47Waxing Crescent21Wed
22Thu2:062.52:532.58:550.49:340.87:236:46First Quarter22Thu
23Fri3:082.33:562.410:010.510:420.87:236:45First Quarter23Fri
24Sat4:152.35:012.411:090.611:480.87:246:45First Quarter24Sat
25Sun5:232.36:012.312:120.77:256:44Waxing Gibbous25Sun
26Mon6:242.36:532.412:450.71:080.77:256:43Waxing Gibbous26Mon
27Tue7:182.47:382.41:350.71:560.67:266:42Waxing Gibbous27Tue
28Wed8:032.48:182.42:180.62:400.67:266:41Waxing Gibbous28Wed
29Thu8:442.58:542.42:570.53:190.67:276:41Full Moon29Thu
30Fri9:222.59:292.43:340.43:560.67:286:40Full Moon30Fri
31Sat9:582.610:042.44:080.44:320.67:286:39Full Moon31Sat
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