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

TIDE TIMES for Saturday, June 20, 2026
The tide is currently rising in Key Biscayne, Biscayne Bay, FL.
Next low tide : 8:58 am (-0.1 ft)
Next high tide : in 2h 06m at 2:11 am (2.2 ft)
Sunset today : 8:14 pm
Sunrise tomorrow : 6:29 am
Moon phase : First Quarter (37% illuminated)
Tide Station Location : Station #8723232
Common Questions About Tides

Key Biscayne, Biscayne Bay, FL Tides - May 2021

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat1:262.41:372.17:590.18:23-0.26:437:51Waning Gibbous1Sat
2Sun2:232.22:372.09:010.29:27-0.16:427:52Third Quarter2Sun
3Mon3:242.13:421.910:080.310:350.16:427:52Third Quarter3Mon
4Tue4:272.04:511.911:140.311:410.26:417:53Third Quarter4Tue
5Wed5:291.95:571.912:160.36:407:54Third Quarter5Wed
6Thu6:261.96:561.912:410.21:100.26:407:54Waning Crescent6Thu
7Fri7:161.97:472.01:340.21:580.16:397:55Waning Crescent7Fri
8Sat8:002.08:312.12:220.22:400.06:387:55Waning Crescent8Sat
9Sun8:402.09:112.13:050.23:190.06:387:56Waning Crescent9Sun
10Mon9:172.09:492.13:440.23:56-0.16:377:56New Moon10Mon
11Tue9:532.010:252.14:220.24:32-0.16:367:57New Moon11Tue
12Wed10:282.011:022.14:580.25:06-0.16:367:57New Moon12Wed
13Thu11:041.911:402.15:330.35:400.06:357:58New Moon13Thu
14Fri11:411.96:080.36:150.06:357:58Waxing Crescent14Fri
15Sat12:182.012:191.86:440.46:520.16:347:59Waxing Crescent15Sat
16Sun12:592.01:001.87:230.47:340.16:347:59Waxing Crescent16Sun
17Mon1:431.91:461.78:080.58:220.26:338:00Waxing Crescent17Mon
18Tue2:311.92:391.79:010.59:180.26:338:00First Quarter18Tue
19Wed3:231.83:401.710:010.410:220.26:328:01First Quarter19Wed
20Thu4:181.94:461.811:030.311:280.26:328:01First Quarter20Thu
21Fri5:161.95:521.912:020.16:328:02Waxing Gibbous21Fri
22Sat6:132.06:552.112:300.212:58-0.16:318:03Waxing Gibbous22Sat
23Sun7:092.17:532.31:290.11:52-0.36:318:03Waxing Gibbous23Sun
24Mon8:032.28:482.42:240.02:44-0.56:318:04Waxing Gibbous24Mon
25Tue8:562.29:412.53:17-0.13:35-0.66:308:04Full Moon25Tue
26Wed9:482.310:332.54:08-0.14:27-0.76:308:05Full Moon26Wed
27Thu10:402.311:242.55:00-0.15:19-0.66:308:05Full Moon27Thu
28Fri11:332.35:53-0.16:13-0.66:308:06Waning Gibbous28Fri
29Sat12:162.412:272.26:470.07:08-0.46:298:06Waning Gibbous29Sat
30Sun1:092.31:222.17:440.08:06-0.26:298:06Waning Gibbous30Sun
31Mon2:032.22:202.08:440.19:07-0.16:298:07Third Quarter31Mon
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 5:34 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 transitional phase. Tonight's moon is 37% 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 shifting between spring and neap.

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 First Quarter (37% illuminated). This places Key Biscayne, Biscayne Bay, FL in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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