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

TIDE TIMES for Saturday, July 11, 2026
The tide is currently falling in Key Biscayne, Biscayne Bay, FL.
Next low tide : in 5h 37m at 1:37 pm (-0.4 ft)
Next high tide : 7:47 pm (2.1 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 - Oct 2062

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun8:502.89:102.72:580.23:240.27:137:07New Moon1Sun
2Mon9:392.99:532.83:450.14:110.27:137:06New Moon2Mon
3Tue10:242.910:352.74:290.04:560.37:147:05New Moon3Tue
4Wed11:082.811:162.65:130.05:400.47:147:04Waxing Crescent4Wed
5Thu11:512.711:572.55:560.16:230.67:147:03Waxing Crescent5Thu
6Fri12:342.66:390.37:070.77:157:01Waxing Crescent6Fri
7Sat12:382.41:182.47:240.47:540.97:157:00Waxing Crescent7Sat
8Sun1:212.32:062.38:120.68:451.07:166:59First Quarter8Sun
9Mon2:082.12:582.29:070.89:441.17:166:58First Quarter9Mon
10Tue3:022.13:562.110:090.910:501.17:176:57First Quarter10Tue
11Wed4:042.04:562.111:130.911:521.17:176:56First Quarter11Wed
12Thu5:102.05:522.212:120.97:186:55Waxing Gibbous12Thu
13Fri6:112.16:422.212:451.01:040.87:186:54Waxing Gibbous13Fri
14Sat7:042.27:272.31:310.81:490.87:196:54Waxing Gibbous14Sat
15Sun7:522.48:082.42:110.72:310.77:196:53Waxing Gibbous15Sun
16Mon8:362.58:482.52:480.53:100.67:206:52Full Moon16Mon
17Tue9:182.69:272.53:240.43:490.67:206:51Full Moon17Tue
18Wed10:002.710:062.54:010.34:280.57:216:50Full Moon18Wed
19Thu10:432.710:472.54:400.25:080.57:216:49Full Moon19Thu
20Fri11:282.711:302.55:210.15:500.67:226:48Waning Gibbous20Fri
21Sat12:152.76:060.26:370.77:226:47Waning Gibbous21Sat
22Sun12:172.41:072.66:550.27:290.77:236:46Waning Gibbous22Sun
23Mon1:102.42:042.57:520.38:300.87:236:45Third Quarter23Mon
24Tue2:112.33:062.48:570.49:400.87:246:45Third Quarter24Tue
25Wed3:202.34:112.410:090.510:520.87:256:44Third Quarter25Wed
26Thu4:332.35:162.411:210.511:590.67:256:43Third Quarter26Thu
27Fri5:432.46:152.512:270.57:266:42Waning Crescent27Fri
28Sat6:472.67:092.612:570.51:250.57:266:42Waning Crescent28Sat
29Sun7:432.77:582.61:490.32:170.47:276:41Waning Crescent29Sun
30Mon8:332.88:432.62:370.13:050.47:286:40New Moon30Mon
31Tue9:192.89:262.63:220.13:500.47:286:39New Moon31Tue
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 4:42 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 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