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

TIDE TIMES for Sunday, August 2, 2026
The tide is currently falling in Key Biscayne, Biscayne Bay, FL.
Next low tide : in 3h 08m at 6:46 am (0.1 ft)
Next high tide : 12:40 pm (2.1 ft)
Sunset today : 8:06 pm
Sunrise tomorrow : 6:47 am
Moon phase : Waning Gibbous (84% illuminated)
Tide Station Location : Station #8723232
Common Questions About Tides

Key Biscayne, Biscayne Bay, FL Tides - May 2088

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat6:582.17:332.11:140.11:39-0.16:437:52Waxing Gibbous1Sat
2Sun7:482.18:222.22:060.12:27-0.16:427:52Waxing Gibbous2Sun
3Mon8:332.19:062.22:530.13:10-0.26:417:53Waxing Gibbous3Mon
4Tue9:142.19:472.23:360.13:51-0.26:407:53Full Moon4Tue
5Wed9:532.110:252.24:170.14:31-0.26:407:54Full Moon5Wed
6Thu10:312.011:022.24:560.15:09-0.16:397:55Full Moon6Thu
7Fri11:082.011:402.15:340.25:46-0.16:387:55Full Moon7Fri
8Sat11:451.96:120.26:220.06:387:56Waning Gibbous8Sat
9Sun12:182.112:241.96:490.37:000.16:377:56Waning Gibbous9Sun
10Mon12:572.01:041.87:280.47:390.26:377:57Waning Gibbous10Mon
11Tue1:381.91:491.88:100.48:230.26:367:57Waning Gibbous11Tue
12Wed2:221.92:381.78:580.49:140.36:367:58Third Quarter12Wed
13Thu3:101.83:331.79:520.410:120.36:357:58Third Quarter13Thu
14Fri4:021.84:341.810:490.311:130.36:347:59Third Quarter14Fri
15Sat4:571.85:361.911:460.26:347:59Third Quarter15Sat
16Sun5:541.96:372.012:140.312:410.06:348:00Waning Crescent16Sun
17Mon6:512.07:352.21:110.21:34-0.26:338:00Waning Crescent17Mon
18Tue7:462.18:302.32:050.12:26-0.36:338:01Waning Crescent18Tue
19Wed8:402.29:222.42:570.03:17-0.56:328:01New Moon19Wed
20Thu9:322.310:142.53:49-0.14:08-0.66:328:02New Moon20Thu
21Fri10:252.411:052.64:40-0.25:00-0.66:318:02New Moon21Fri
22Sat11:172.411:572.55:32-0.25:53-0.66:318:03Waxing Crescent22Sat
23Sun12:112.36:26-0.26:48-0.56:318:04Waxing Crescent23Sun
24Mon12:492.51:062.37:22-0.27:45-0.46:318:04Waxing Crescent24Mon
25Tue1:422.42:042.28:20-0.18:45-0.26:308:05First Quarter25Tue
26Wed2:372.23:042.19:21-0.19:470.06:308:05First Quarter26Wed
27Thu3:332.14:062.010:230.010:500.16:308:06First Quarter27Thu
28Fri4:302.05:092.011:230.011:500.26:298:06First Quarter28Fri
29Sat5:282.06:102.012:190.06:298:07Waxing Gibbous29Sat
30Sun6:231.97:062.012:470.21:11-0.16:298:07Waxing Gibbous30Sun
31Mon7:141.97:552.01:390.21:58-0.16:298:07Waxing Gibbous31Mon
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 9:43 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 84% 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 (84% 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