25.6983’ N, 80.1700’ W

Key Biscayne, Biscayne Bay, FL

86°
H -°
L 83°
ESE
6mph
High tide
12:24 am

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

TIDE TIMES for Monday, September 14, 2026
The tide is currently rising in Key Biscayne, Biscayne Bay, FL.
Next low tide (tomorrow) : 7:08 am (0.3 ft)
Next high tide (tomorrow) : in 4h 33m at 12:24 am (2.4 ft)
Sunset today : 7:26 pm
Sunrise tomorrow : 7:06 am
Moon phase : Waxing Crescent (14% illuminated)
Tide Station Location : Station #8723232
Common Questions About Tides

Key Biscayne, Biscayne Bay, FL Tides - Apr 1950

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat7:562.28:232.32:07-0.22:29-0.36:126:37Full Moon1Sat
2Sun8:412.39:132.52:55-0.33:15-0.56:116:37Full Moon2Sun
3Mon9:262.310:012.53:43-0.34:01-0.66:106:38Full Moon3Mon
4Tue10:122.310:512.54:31-0.34:49-0.66:096:38Waning Gibbous4Tue
5Wed10:592.311:422.45:20-0.25:39-0.66:086:38Waning Gibbous5Wed
6Thu11:492.26:110.06:33-0.46:066:39Waning Gibbous6Thu
7Fri12:362.312:442.17:070.17:32-0.26:056:39Waning Gibbous7Fri
8Sat1:342.11:441.98:090.38:38-0.16:046:40Third Quarter8Sat
9Sun2:382.02:521.89:180.49:490.16:036:40Third Quarter9Sun
10Mon3:461.94:041.810:290.410:580.16:026:41Third Quarter10Mon
11Tue4:531.95:141.811:340.36:016:41Waning Crescent11Tue
12Wed5:521.96:141.912:000.112:300.26:006:42Waning Crescent12Wed
13Thu6:412.07:052.012:540.11:180.15:596:42Waning Crescent13Thu
14Fri7:232.07:492.11:410.12:000.05:586:43Waning Crescent14Fri
15Sat8:012.08:282.12:230.12:39-0.15:576:43New Moon15Sat
16Sun8:362.09:042.23:020.13:14-0.15:576:44New Moon16Sun
17Mon9:102.09:392.23:380.13:48-0.15:566:44New Moon17Mon
18Tue9:432.010:152.14:130.24:22-0.15:556:45New Moon18Tue
19Wed10:171.910:512.14:470.24:550.05:546:45Waxing Crescent19Wed
20Thu10:521.911:282.05:200.35:280.05:536:45Waxing Crescent20Thu
21Fri11:281.85:540.46:050.15:526:46Waxing Crescent21Fri
22Sat12:091.912:071.76:320.56:450.25:516:46Waxing Crescent22Sat
23Sun12:541.812:521.77:170.57:340.25:506:47First Quarter23Sun
24Mon1:441.81:461.78:120.68:340.35:496:47First Quarter24Mon
25Tue2:411.82:521.79:170.69:410.35:486:48First Quarter25Tue
26Wed3:411.84:021.710:230.410:490.25:486:48First Quarter26Wed
27Thu4:411.95:101.911:240.311:510.25:476:49Waxing Gibbous27Thu
28Fri5:382.06:122.112:190.05:466:49Waxing Gibbous28Fri
29Sat6:302.17:082.312:470.11:10-0.25:456:50Waxing Gibbous29Sat
30Sun8:212.29:012.41:400.03:00-0.46:447:50Full Moon30Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8723232)

Common Questions About Key Biscayne, Biscayne Bay, FL Tides

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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 14% 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 Waxing Crescent (14% 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