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

TIDE TIMES for Sunday, August 16, 2026
The tide is currently falling in Key Biscayne, Biscayne Bay, FL.
Next low tide : in 5h 53m at 7:02 am (-0.1 ft)
Next high tide : 12:49 pm (2.4 ft)
Sunset today : 7:55 pm
Sunrise tomorrow : 6:54 am
Moon phase : Waxing Crescent (18% illuminated)
Tide Station Location : Station #8723232
Common Questions About Tides

Key Biscayne, Biscayne Bay, FL Tides - Jan 2012

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun2:381.72:461.79:240.49:540.27:075:41First Quarter1Sun
2Mon3:331.73:371.710:200.510:470.27:075:41First Quarter2Mon
3Tue4:301.74:321.611:150.511:380.17:075:42Waxing Gibbous3Tue
4Wed5:261.75:271.712:070.47:075:43Waxing Gibbous4Wed
5Thu6:191.86:201.712:260.112:550.47:085:43Waxing Gibbous5Thu
6Fri7:071.97:091.81:110.01:400.37:085:44Waxing Gibbous6Fri
7Sat7:532.07:561.81:54-0.12:220.27:085:45Full Moon7Sat
8Sun8:362.08:411.92:35-0.23:030.17:085:46Full Moon8Sun
9Mon9:182.19:252.03:15-0.33:430.07:085:46Full Moon9Mon
10Tue9:592.110:102.03:56-0.34:23-0.17:085:47Full Moon10Tue
11Wed10:402.110:552.04:38-0.35:05-0.27:085:48Waning Gibbous11Wed
12Thu11:212.111:432.05:22-0.35:50-0.27:085:48Waning Gibbous12Thu
13Fri12:042.16:09-0.26:38-0.37:085:49Waning Gibbous13Fri
14Sat12:332.012:512.07:00-0.17:31-0.37:085:50Third Quarter14Sat
15Sun1:282.01:421.97:570.08:29-0.37:085:51Third Quarter15Sun
16Mon2:281.92:391.98:590.19:32-0.37:085:51Third Quarter16Mon
17Tue3:341.93:431.810:060.110:38-0.37:085:52Third Quarter17Tue
18Wed4:421.94:501.811:130.111:42-0.47:085:53Waning Crescent18Wed
19Thu5:482.05:561.912:160.17:085:54Waning Crescent19Thu
20Fri6:482.06:572.012:42-0.41:150.07:085:55Waning Crescent20Fri
21Sat7:422.17:522.01:38-0.52:09-0.17:075:55New Moon21Sat
22Sun8:312.28:432.12:30-0.62:59-0.27:075:56New Moon22Sun
23Mon9:172.29:302.13:19-0.53:47-0.37:075:57New Moon23Mon
24Tue9:592.210:152.14:05-0.54:32-0.37:075:58New Moon24Tue
25Wed10:392.110:572.04:50-0.45:15-0.37:065:58Waxing Crescent25Wed
26Thu11:172.011:391.95:33-0.35:57-0.37:065:59Waxing Crescent26Thu
27Fri11:541.96:15-0.16:39-0.27:066:00Waxing Crescent27Fri
28Sat12:201.812:321.86:570.07:22-0.17:056:01Waxing Crescent28Sat
29Sun1:031.71:111.77:410.28:080.07:056:01First Quarter29Sun
30Mon1:491.61:541.68:290.38:580.17:056:02First Quarter30Mon
31Tue2:401.52:431.59:230.49:520.17:046:03First Quarter31Tue
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 9:55 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 18% 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 Waxing Crescent (18% 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