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 09m at 8:01 am (-0.1 ft)
Next high tide : 1:42 pm (2.1 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 - May 2030

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed9:172.09:492.23:420.23:55-0.16:437:51New Moon1Wed
2Thu9:542.010:262.24:210.24:33-0.16:427:52New Moon2Thu
3Fri10:302.011:032.14:580.25:09-0.16:427:52New Moon3Fri
4Sat11:072.011:412.15:340.25:440.06:417:53Waxing Crescent4Sat
5Sun11:441.96:100.36:200.06:407:53Waxing Crescent5Sun
6Mon12:192.012:231.96:470.36:570.16:407:54Waxing Crescent6Mon
7Tue12:592.01:041.87:250.47:370.26:397:54Waxing Crescent7Tue
8Wed1:411.91:491.88:090.48:230.26:387:55Waxing Crescent8Wed
9Thu2:261.92:411.78:590.49:170.36:387:56First Quarter9Thu
10Fri3:151.83:391.89:550.410:180.36:377:56First Quarter10Fri
11Sat4:091.84:421.810:550.311:220.36:377:57First Quarter11Sat
12Sun5:051.95:471.911:540.16:367:57Waxing Gibbous12Sun
13Mon6:031.96:482.112:240.212:50-0.16:357:58Waxing Gibbous13Mon
14Tue7:012.07:472.31:220.11:44-0.36:357:58Waxing Gibbous14Tue
15Wed7:562.18:422.42:170.02:37-0.46:347:59Waxing Gibbous15Wed
16Thu8:502.29:352.53:10-0.13:29-0.66:347:59Full Moon16Thu
17Fri9:442.310:272.64:02-0.14:22-0.66:338:00Full Moon17Fri
18Sat10:372.411:192.54:54-0.25:14-0.66:338:00Full Moon18Sat
19Sun11:302.45:47-0.26:08-0.66:338:01Waning Gibbous19Sun
20Mon12:112.512:242.36:41-0.17:03-0.46:328:01Waning Gibbous20Mon
21Tue1:032.41:202.27:38-0.18:01-0.36:328:02Waning Gibbous21Tue
22Wed1:562.32:182.18:370.09:01-0.16:318:02Third Quarter22Wed
23Thu2:502.23:182.09:380.010:030.16:318:03Third Quarter23Thu
24Fri3:452.04:191.910:380.111:040.26:318:03Third Quarter24Fri
25Sat4:411.95:211.911:360.16:308:04Third Quarter25Sat
26Sun5:361.96:191.912:030.312:290.06:308:04Waning Crescent26Sun
27Mon6:281.97:121.912:570.31:180.06:308:05Waning Crescent27Mon
28Tue7:171.87:592.01:460.32:030.06:308:05Waning Crescent28Tue
29Wed8:011.98:422.02:310.32:46-0.16:298:06Waning Crescent29Wed
30Thu8:441.99:232.03:140.33:26-0.16:298:06New Moon30Thu
31Fri9:241.910:022.13:540.34:05-0.16:298:07New 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 10:51 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 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