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

TIDE TIMES for Tuesday, July 28, 2026
The tide is currently rising in Key Biscayne, Biscayne Bay, FL.
Next low tide (tomorrow) : 4:19 am (0.3 ft)
Next high tide : in 5h 36m at 9:49 pm (2.1 ft)
Sunset today : 8:09 pm
Sunrise tomorrow : 6:45 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #8723232
Common Questions About Tides

Key Biscayne, Biscayne Bay, FL Tides - Apr 2081

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue4:001.74:081.610:460.511:140.37:107:37Third Quarter1Tue
2Wed5:051.65:161.611:520.67:097:38Third Quarter2Wed
3Thu6:061.76:211.612:170.312:510.57:087:38Waning Crescent3Thu
4Fri6:591.77:161.71:130.31:420.47:077:39Waning Crescent4Fri
5Sat7:431.88:031.82:010.32:250.37:067:39Waning Crescent5Sat
6Sun8:221.98:451.92:440.23:030.17:057:39Waning Crescent6Sun
7Mon8:591.99:252.03:230.23:380.07:047:40New Moon7Mon
8Tue9:352.010:032.14:000.14:12-0.17:037:40New Moon8Tue
9Wed10:112.010:412.24:350.14:45-0.17:027:41New Moon9Wed
10Thu10:472.011:192.25:090.15:18-0.27:017:41New Moon10Thu
11Fri11:232.011:592.15:440.25:54-0.27:007:42Waxing Crescent11Fri
12Sat12:001.96:220.26:34-0.16:597:42Waxing Crescent12Sat
13Sun12:422.112:411.97:030.37:19-0.16:587:43Waxing Crescent13Sun
14Mon1:302.01:291.87:510.48:120.06:577:43Waxing Crescent14Mon
15Tue2:231.92:261.88:480.49:140.06:567:44First Quarter15Tue
16Wed3:241.93:331.89:550.410:240.16:557:44First Quarter16Wed
17Thu4:291.94:471.911:060.311:360.16:547:45First Quarter17Thu
18Fri5:332.05:592.012:130.26:547:45Waxing Gibbous18Fri
19Sat6:332.17:052.112:420.01:130.06:537:46Waxing Gibbous19Sat
20Sun7:292.28:032.31:420.02:07-0.26:527:46Waxing Gibbous20Sun
21Mon8:202.28:562.42:36-0.12:58-0.46:517:47Waxing Gibbous21Mon
22Tue9:082.39:452.53:27-0.13:46-0.56:507:47Full Moon22Tue
23Wed9:542.310:332.54:16-0.14:33-0.56:497:48Full Moon23Wed
24Thu10:402.311:192.45:03-0.15:19-0.56:487:48Full Moon24Thu
25Fri11:252.25:490.06:06-0.46:477:49Waning Gibbous25Fri
26Sat12:052.312:092.16:360.16:53-0.26:477:49Waning Gibbous26Sat
27Sun12:512.212:552.07:240.37:430.06:467:50Waning Gibbous27Sun
28Mon1:382.01:431.88:150.48:360.16:457:50Waning Gibbous28Mon
29Tue2:271.92:351.79:110.59:330.36:447:51Third Quarter29Tue
30Wed3:201.83:331.610:120.610:340.46:437:51Third Quarter30Wed
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 1:04 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 99% 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 Full Moon (99% 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