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

TIDE TIMES for Saturday, July 11, 2026
The tide is currently rising in Key Biscayne, Biscayne Bay, FL.
Next low tide : 1:37 pm (-0.4 ft)
Next high tide : in 6m at 6:44 am (1.9 ft)
Sunset today : 8:15 pm
Sunrise tomorrow : 6:37 am
Moon phase : Waning Crescent (11% illuminated)
Tide Station Location : Station #8723232
Common Questions About Tides

Key Biscayne, Biscayne Bay, FL Tides - Sep 2062

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri8:082.48:472.62:230.32:480.07:017:39Waning Crescent1Fri
2Sat9:042.69:352.73:160.23:41-0.17:017:38New Moon2Sat
3Sun9:562.710:212.74:070.04:31-0.17:027:37New Moon3Sun
4Mon10:452.711:042.74:55-0.15:190.07:027:36New Moon4Mon
5Tue11:332.711:472.65:41-0.16:060.17:027:35Waxing Crescent5Tue
6Wed12:192.66:27-0.16:530.37:037:34Waxing Crescent6Wed
7Thu12:302.51:062.57:130.17:410.57:037:33Waxing Crescent7Thu
8Fri1:132.31:532.48:010.28:300.77:047:32Waxing Crescent8Fri
9Sat1:572.22:432.28:520.49:240.87:047:31First Quarter9Sat
10Sun2:462.13:382.19:490.510:240.97:047:30First Quarter10Sun
11Mon3:412.04:402.010:510.611:271.07:057:29First Quarter11Mon
12Tue4:431.95:432.011:530.77:057:28First Quarter12Tue
13Wed5:472.06:402.112:281.012:500.77:057:26Waxing Gibbous13Wed
14Thu6:462.07:292.21:220.91:400.67:067:25Waxing Gibbous14Thu
15Fri7:382.18:112.32:080.82:250.67:067:24Waxing Gibbous15Fri
16Sat8:242.38:502.42:490.73:050.57:077:23Waxing Gibbous16Sat
17Sun9:062.49:272.43:260.53:430.57:077:22Full Moon17Sun
18Mon9:472.510:032.54:010.44:190.47:077:21Full Moon18Mon
19Tue10:272.510:392.54:350.34:550.47:087:20Full Moon19Tue
20Wed11:072.611:152.45:100.35:320.57:087:19Waning Gibbous20Wed
21Thu11:482.611:532.45:460.26:110.57:097:18Waning Gibbous21Thu
22Fri12:322.56:260.26:540.67:097:17Waning Gibbous22Fri
23Sat12:342.41:202.57:120.37:420.77:097:15Waning Gibbous23Sat
24Sun1:212.32:152.48:040.38:390.87:107:14Third Quarter24Sun
25Mon2:162.23:182.39:070.49:460.97:107:13Third Quarter25Mon
26Tue3:232.24:272.310:180.511:000.97:117:12Third Quarter26Tue
27Wed4:382.25:362.411:320.57:117:11Third Quarter27Wed
28Thu5:522.36:392.512:110.812:400.47:117:10Waning Crescent28Thu
29Fri6:582.57:342.61:130.61:400.37:127:09Waning Crescent29Fri
30Sat7:572.78:242.72:080.42:340.37:127:08Waning Crescent30Sat
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 10:10 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 spring phase. Tonight's moon is 11% 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 near their weekly maximum.

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 Waning Crescent (11% illuminated). This places Key Biscayne, Biscayne Bay, FL in a spring tide cycle, so tidal ranges are near their weekly maximum 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