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

TIDE TIMES for Sunday, August 2, 2026
The tide is currently rising in Key Biscayne, Biscayne Bay, FL.
Next low tide (tomorrow) : 7:27 am (0.0 ft)
Next high tide (tomorrow) : in 2h 34m at 12:54 am (2.1 ft)
Sunset today : 8:06 pm
Sunrise tomorrow : 6:47 am
Moon phase : Waning Gibbous (84% illuminated)
Tide Station Location : Station #8723232
Common Questions About Tides

Key Biscayne, Biscayne Bay, FL Tides - Nov 2089

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue9:032.99:162.73:050.03:330.37:296:38New Moon1Tue
2Wed9:512.910:012.73:52-0.14:200.37:306:38New Moon2Wed
3Thu10:362.810:462.64:380.05:060.37:306:37New Moon3Thu
4Fri11:202.811:292.65:220.05:510.47:316:36Waxing Crescent4Fri
5Sat12:032.66:070.26:360.57:326:36Waxing Crescent5Sat
6Sun12:122.411:562.35:520.36:220.66:325:35Waxing Crescent6Sun
7Mon12:302.46:390.57:110.76:335:35Waxing Crescent7Mon
8Tue12:422.21:162.37:290.68:050.86:345:34First Quarter8Tue
9Wed1:322.12:052.28:230.79:010.86:345:34First Quarter9Wed
10Thu2:262.02:562.19:210.89:580.86:355:33First Quarter10Thu
11Fri3:242.03:502.110:190.810:520.76:365:33First Quarter11Fri
12Sat4:232.14:432.111:130.811:400.66:365:32Waxing Gibbous12Sat
13Sun5:192.25:332.212:030.76:375:32Waxing Gibbous13Sun
14Mon6:102.36:212.212:250.512:480.66:385:32Waxing Gibbous14Mon
15Tue6:582.47:072.31:060.41:310.66:385:31Waxing Gibbous15Tue
16Wed7:442.57:522.41:470.22:130.56:395:31Full Moon16Wed
17Thu8:282.68:362.42:270.12:540.46:405:31Full Moon17Thu
18Fri9:132.69:212.53:090.03:370.36:415:30Full Moon18Fri
19Sat9:592.710:072.53:52-0.14:220.36:415:30Full Moon19Sat
20Sun10:462.610:562.44:38-0.15:090.36:425:30Waning Gibbous20Sun
21Mon11:352.611:482.45:270.06:000.36:435:30Waning Gibbous21Mon
22Tue12:272.56:210.16:560.36:445:29Waning Gibbous22Tue
23Wed12:452.41:212.57:190.27:580.36:445:29Third Quarter23Wed
24Thu1:462.32:192.48:240.39:030.36:455:29Third Quarter24Thu
25Fri2:512.33:202.49:310.310:070.26:465:29Third Quarter25Fri
26Sat3:582.34:212.310:370.311:080.16:465:29Third Quarter26Sat
27Sun5:032.45:202.411:380.36:475:29Waning Crescent27Sun
28Mon6:022.56:162.412:050.012:350.36:485:29Waning Crescent28Mon
29Tue6:572.57:072.412:57-0.11:270.26:495:29Waning Crescent29Tue
30Wed7:472.67:552.41:46-0.12:150.26:495:29New Moon30Wed
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 4:10 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 84% 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 Gibbous (84% 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