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

TIDE TIMES for Wednesday, July 15, 2026
The tide is currently falling in Key Biscayne, Biscayne Bay, FL.
Next low tide : in 5h 57m at 5:21 pm (-0.5 ft)
Next high tide : 11:20 pm (2.4 ft)
Sunset today : 8:14 pm
Sunrise tomorrow : 6:39 am
Moon phase : New Moon (2% illuminated)
Tide Station Location : Station #8723232
Common Questions About Tides

Key Biscayne, Biscayne Bay, FL Tides - Dec 2066

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed8:492.48:502.22:500.03:180.46:505:29Full Moon1Wed
2Thu9:282.39:292.23:300.03:570.46:515:29Full Moon2Thu
3Fri10:062.310:082.14:090.14:360.56:515:29Full Moon3Fri
4Sat10:432.210:472.04:470.25:150.56:525:29Waning Gibbous4Sat
5Sun11:212.211:282.05:250.25:540.56:535:29Waning Gibbous5Sun
6Mon12:002.16:030.36:350.56:535:29Waning Gibbous6Mon
7Tue12:111.912:402.06:440.47:180.56:545:30Waning Gibbous7Tue
8Wed12:581.91:222.07:290.58:050.56:555:30Third Quarter8Wed
9Thu1:491.92:071.98:210.68:570.56:555:30Third Quarter9Thu
10Fri2:441.92:571.99:190.69:520.46:565:30Third Quarter10Fri
11Sat3:441.93:511.910:190.610:470.26:575:31Third Quarter11Sat
12Sun4:452.04:481.911:190.511:420.16:575:31Waning Crescent12Sun
13Mon5:442.15:462.012:150.46:585:31Waning Crescent13Mon
14Tue6:412.26:432.112:36-0.11:090.36:585:31Waning Crescent14Tue
15Wed7:362.47:392.21:28-0.32:010.26:595:32New Moon15Wed
16Thu8:282.58:342.32:21-0.42:530.17:005:32New Moon16Thu
17Fri9:202.59:282.43:13-0.53:440.07:005:33New Moon17Fri
18Sat10:102.610:222.44:05-0.54:37-0.17:015:33Waxing Crescent18Sat
19Sun11:002.511:172.44:58-0.55:31-0.17:015:34Waxing Crescent19Sun
20Mon11:502.55:53-0.36:26-0.17:025:34Waxing Crescent20Mon
21Tue12:132.312:422.36:50-0.27:24-0.17:025:34Waxing Crescent21Tue
22Wed1:112.21:342.27:490.08:23-0.17:035:35First Quarter22Wed
23Thu2:112.12:292.18:510.19:24-0.17:035:36First Quarter23Thu
24Fri3:132.03:262.09:530.310:23-0.17:045:36First Quarter24Fri
25Sat4:162.04:241.910:540.311:200.07:045:37Waxing Gibbous25Sat
26Sun5:172.05:211.811:510.47:055:37Waxing Gibbous26Sun
27Mon6:132.06:151.812:13-0.112:440.47:055:38Waxing Gibbous27Mon
28Tue7:032.07:031.81:02-0.11:320.37:055:38Waxing Gibbous28Tue
29Wed7:482.07:481.91:48-0.12:160.37:065:39Full Moon29Wed
30Thu8:292.08:291.92:30-0.12:580.27:065:40Full Moon30Thu
31Fri9:072.09:091.93:11-0.13:380.27:065:40Full 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 8:20 pm — 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 2% 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 New Moon (2% 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