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

TIDE TIMES for Saturday, July 4, 2026
The tide is currently falling in Key Biscayne, Biscayne Bay, FL.
Next low tide : in 3h 19m at 7:27 pm (0.1 ft)
Next high tide (tomorrow) : 1:24 am (1.9 ft)
Sunset today : 8:16 pm
Sunrise tomorrow : 6:34 am
Moon phase : Waning Gibbous (81% illuminated)
Tide Station Location : Station #8723232
Common Questions About Tides

Key Biscayne, Biscayne Bay, FL Tides - Oct 2051

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun7:382.58:012.51:520.62:150.57:137:07Waning Crescent1Sun
2Mon8:242.58:422.52:370.52:580.57:137:06Waning Crescent2Mon
3Tue9:052.69:202.53:180.43:390.57:137:05New Moon3Tue
4Wed9:432.69:552.53:560.44:170.57:147:04New Moon4Wed
5Thu10:202.610:302.54:320.44:530.57:147:03New Moon5Thu
6Fri10:572.611:052.55:070.45:280.67:157:02New Moon6Fri
7Sat11:332.511:412.45:410.46:030.77:157:01Waxing Crescent7Sat
8Sun12:112.56:150.56:380.77:167:00Waxing Crescent8Sun
9Mon12:182.312:522.46:510.57:160.87:166:59Waxing Crescent9Mon
10Tue12:572.31:352.37:300.67:580.97:176:58Waxing Crescent10Tue
11Wed1:412.22:232.38:160.78:491.07:176:57First Quarter11Wed
12Thu2:332.23:182.39:110.79:501.07:176:56First Quarter12Thu
13Fri3:322.24:172.310:160.710:550.97:186:55First Quarter13Fri
14Sat4:382.25:172.311:220.711:580.77:186:54First Quarter14Sat
15Sun5:432.46:152.412:250.67:196:53Waxing Gibbous15Sun
16Mon6:452.57:102.612:550.51:220.57:196:52Waxing Gibbous16Mon
17Tue7:422.78:022.71:480.32:160.37:206:51Waxing Gibbous17Tue
18Wed8:362.98:532.82:390.13:070.27:206:50Full Moon18Wed
19Thu9:283.09:432.93:29-0.13:580.27:216:49Full Moon19Thu
20Fri10:193.110:332.94:18-0.24:480.27:226:48Full Moon20Fri
21Sat11:103.111:232.95:09-0.25:390.27:226:47Waning Gibbous21Sat
22Sun12:023.06:00-0.16:320.37:236:47Waning Gibbous22Sun
23Mon12:152.812:552.96:540.07:270.47:236:46Waning Gibbous23Mon
24Tue1:102.71:502.77:520.28:270.57:246:45Waning Gibbous24Tue
25Wed2:082.52:482.68:530.49:310.67:246:44Third Quarter25Wed
26Thu3:092.43:482.59:580.510:370.77:256:43Third Quarter26Thu
27Fri4:142.34:492.411:040.611:390.77:256:43Third Quarter27Fri
28Sat5:182.35:472.412:050.77:266:42Waning Crescent28Sat
29Sun6:182.36:402.412:350.612:590.77:276:41Waning Crescent29Sun
30Mon7:112.47:262.41:240.61:480.67:276:40Waning Crescent30Mon
31Tue7:562.48:072.42:080.52:320.67:286:40Waning Crescent31Tue
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 10:25 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 81% 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 (81% 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