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

TIDE TIMES for Wednesday, August 5, 2026
The tide is currently rising in Key Biscayne, Biscayne Bay, FL.
Next low tide : 9:37 pm (0.4 ft)
Next high tide : in 5h 46m at 3:09 pm (2.0 ft)
Sunset today : 8:04 pm
Sunrise tomorrow : 6:49 am
Moon phase : Third Quarter (55% illuminated)
Tide Station Location : Station #8723232
Common Questions About Tides

Key Biscayne, Biscayne Bay, FL Tides - Mar 2095

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue4:461.74:491.611:170.311:44-0.16:436:22Waning Crescent1Tue
2Wed5:521.85:581.712:200.26:426:23Waning Crescent2Wed
3Thu6:501.97:001.912:44-0.31:170.06:416:23Waning Crescent3Thu
4Fri7:432.17:572.11:41-0.42:10-0.26:406:24Waning Crescent4Fri
5Sat8:322.38:502.32:33-0.53:01-0.46:396:24New Moon5Sat
6Sun9:192.49:412.43:24-0.63:50-0.66:386:25New Moon6Sun
7Mon10:052.410:312.44:14-0.64:38-0.76:376:25New Moon7Mon
8Tue10:512.411:222.45:04-0.55:28-0.76:366:26Waxing Crescent8Tue
9Wed11:382.35:55-0.46:18-0.66:356:26Waxing Crescent9Wed
10Thu12:142.312:262.16:47-0.27:12-0.56:346:27Waxing Crescent10Thu
11Fri1:072.21:182.07:430.08:09-0.36:336:27First Quarter11Fri
12Sat2:052.02:151.88:430.19:11-0.26:326:28First Quarter12Sat
13Sun4:081.94:191.710:480.311:170.07:317:28First Quarter13Sun
14Mon5:161.85:271.711:550.37:307:29First Quarter14Mon
15Tue6:221.76:331.712:220.012:580.37:297:29Waxing Gibbous15Tue
16Wed7:211.87:311.71:220.01:530.37:287:30Waxing Gibbous16Wed
17Thu8:101.88:211.82:140.02:410.27:277:30Waxing Gibbous17Thu
18Fri8:511.99:031.93:000.03:240.17:257:31Waxing Gibbous18Fri
19Sat9:272.09:422.03:41-0.14:020.07:247:31Full Moon19Sat
20Sun10:022.010:192.04:19-0.14:37-0.17:237:32Full Moon20Sun
21Mon10:352.010:552.04:55-0.15:11-0.17:227:32Full Moon21Mon
22Tue11:082.011:312.05:290.05:43-0.17:217:32Full Moon22Tue
23Wed11:411.96:020.06:14-0.17:207:33Waning Gibbous23Wed
24Thu12:072.012:141.96:350.16:47-0.17:197:33Waning Gibbous24Thu
25Fri12:452.012:491.87:090.27:220.07:187:34Waning Gibbous25Fri
26Sat1:251.91:261.77:480.38:040.07:177:34Waning Gibbous26Sat
27Sun2:111.82:101.78:340.48:550.17:167:35Third Quarter27Sun
28Mon3:041.83:041.79:310.59:580.17:157:35Third Quarter28Mon
29Tue4:081.84:131.710:390.511:090.17:147:36Third Quarter29Tue
30Wed5:161.85:281.711:500.47:137:36Third Quarter30Wed
31Thu6:221.96:391.912:190.012:550.27:127:37Waning Crescent31Thu
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 6:23 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 neap phase. Tonight's moon is 55% 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 minimum.

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 Third Quarter (55% illuminated). This places Key Biscayne, Biscayne Bay, FL in a neap tide cycle, so tidal ranges are near their weekly minimum 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