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

TIDE TIMES for Friday, June 19, 2026
The tide is currently falling in Key Biscayne, Biscayne Bay, FL.
Next low tide : in 2h 29m at 8:23 pm (-0.2 ft)
Next high tide (tomorrow) : 2:11 am (2.2 ft)
Sunset today : 8:14 pm
Sunrise tomorrow : 6:29 am
Moon phase : Waxing Crescent (27% illuminated)
Tide Station Location : Station #8723232
Common Questions About Tides

Key Biscayne, Biscayne Bay, FL Tides - Oct 2021

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri5:312.16:192.212:061.012:260.77:137:07Waning Crescent1Fri
2Sat6:322.27:122.31:000.91:190.67:137:06Waning Crescent2Sat
3Sun7:282.47:592.51:480.72:080.57:137:05Waning Crescent3Sun
4Mon8:192.58:432.62:330.52:540.47:147:04Waning Crescent4Mon
5Tue9:072.79:262.73:150.33:390.37:147:03New Moon5Tue
6Wed9:542.810:102.73:580.24:240.37:157:02New Moon6Wed
7Thu10:412.910:542.74:420.05:100.37:157:00New Moon7Thu
8Fri11:302.911:402.75:280.05:570.37:166:59Waxing Crescent8Fri
9Sat12:202.96:160.06:470.47:166:58Waxing Crescent9Sat
10Sun12:292.61:132.87:080.17:420.67:176:57Waxing Crescent10Sun
11Mon1:222.62:112.68:050.28:430.77:176:56First Quarter11Mon
12Tue2:222.43:142.59:100.39:510.87:186:55First Quarter12Tue
13Wed3:282.44:222.510:210.511:030.87:186:55First Quarter13Wed
14Thu4:402.35:292.411:310.57:196:54First Quarter14Thu
15Fri5:502.46:302.512:100.712:360.57:196:53Waxing Gibbous15Fri
16Sat6:532.57:242.51:090.61:340.57:206:52Waxing Gibbous16Sat
17Sun7:482.68:112.62:010.52:240.57:206:51Waxing Gibbous17Sun
18Mon8:362.68:522.62:460.43:090.57:216:50Full Moon18Mon
19Tue9:182.79:302.63:280.33:510.57:216:49Full Moon19Tue
20Wed9:572.710:062.54:060.34:300.57:226:48Full Moon20Wed
21Thu10:352.710:412.54:430.35:070.67:226:47Full Moon21Thu
22Fri11:112.611:152.45:190.35:440.67:236:46Waning Gibbous22Fri
23Sat11:482.511:502.35:540.46:200.77:236:46Waning Gibbous23Sat
24Sun12:262.46:300.56:560.87:246:45Waning Gibbous24Sun
25Mon12:272.21:062.37:070.67:360.97:256:44Waning Gibbous25Mon
26Tue1:082.21:522.27:480.78:211.07:256:43Waning Gibbous26Tue
27Wed1:542.12:422.28:360.89:171.17:266:42Third Quarter27Wed
28Thu2:482.03:392.29:350.810:211.17:266:42Third Quarter28Thu
29Fri3:512.04:382.210:410.811:241.07:276:41Third Quarter29Fri
30Sat4:572.15:362.211:450.87:276:40Third Quarter30Sat
31Sun6:002.26:292.312:210.812:430.77:286:39Waning Crescent31Sun
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 11:17 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 transitional phase. Tonight's moon is 27% 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 Crescent (27% 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