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

TIDE TIMES for Thursday, July 30, 2026
The tide is currently rising in Key Biscayne, Biscayne Bay, FL.
Next low tide : 5:07 pm (0.0 ft)
Next high tide : in 2h 47m at 10:35 am (2.0 ft)
Sunset today : 8:07 pm
Sunrise tomorrow : 6:46 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #8723232
Common Questions About Tides

Key Biscayne, Biscayne Bay, FL Tides - Sep 2082

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue4:492.15:502.211:470.37:017:39Waxing Gibbous1Tue
2Wed5:592.16:542.212:230.712:510.37:017:38Waxing Gibbous2Wed
3Thu7:042.27:492.31:250.61:490.37:027:37Waxing Gibbous3Thu
4Fri8:002.38:362.42:190.52:400.37:027:36Waxing Gibbous4Fri
5Sat8:492.39:162.43:060.43:260.27:027:35Full Moon5Sat
6Sun9:322.49:532.43:480.44:070.37:037:34Full Moon6Sun
7Mon10:122.410:282.44:270.34:460.37:037:33Full Moon7Mon
8Tue10:492.411:012.45:040.35:230.47:047:32Full Moon8Tue
9Wed11:252.411:342.35:390.35:590.57:047:31Waning Gibbous9Wed
10Thu12:012.46:130.36:330.67:047:30Waning Gibbous10Thu
11Fri12:072.312:382.36:470.47:080.77:057:28Waning Gibbous11Fri
12Sat12:412.21:182.27:220.57:450.87:057:27Waning Gibbous12Sat
13Sun1:192.12:022.18:020.68:280.97:067:26Third Quarter13Sun
14Mon2:012.02:542.18:490.69:211.07:067:25Third Quarter14Mon
15Tue2:522.03:542.09:480.710:261.17:067:24Third Quarter15Tue
16Wed3:542.04:592.110:550.711:351.07:077:23Third Quarter16Wed
17Thu5:042.06:022.212:010.67:077:22Waning Crescent17Thu
18Fri6:112.16:582.312:370.91:000.57:077:21Waning Crescent18Fri
19Sat7:132.37:482.51:320.71:540.47:087:20Waning Crescent19Sat
20Sun8:082.58:352.62:210.42:450.37:087:19Waning Crescent20Sun
21Mon9:002.79:212.73:080.23:330.27:097:17New Moon21Mon
22Tue9:502.910:062.83:540.04:210.17:097:16New Moon22Tue
23Wed10:392.910:522.84:41-0.15:090.27:097:15New Moon23Wed
24Thu11:292.911:392.75:28-0.25:580.27:107:14Waxing Crescent24Thu
25Fri12:202.96:18-0.16:490.47:107:13Waxing Crescent25Fri
26Sat12:282.71:142.77:110.07:430.57:117:12Waxing Crescent26Sat
27Sun1:222.52:112.68:090.28:440.77:117:11First Quarter27Sun
28Mon2:212.43:142.49:130.39:520.87:117:10First Quarter28Mon
29Tue3:262.34:222.410:230.511:030.97:127:09First Quarter29Tue
30Wed4:372.35:292.311:330.67:127:08First Quarter30Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8723232)

Common Questions About Key Biscayne, Biscayne Bay, FL Tides

Show All
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 1:51 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 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