25.6983’ N, 80.1700’ W

Key Biscayne, Biscayne Bay, FL

79°
H -°
L 76°
NE
3mph
High tide
3:25 am

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

TIDE TIMES for Saturday, September 19, 2026
The tide is currently rising in Key Biscayne, Biscayne Bay, FL.
Next low tide : 10:36 am (0.8 ft)
Next high tide : in 1h 33m at 3:25 am (2.0 ft)
Sunset today : 7:20 pm
Sunrise tomorrow : 7:08 am
Moon phase : First Quarter (58% illuminated)
Tide Station Location : Station #8723232
Common Questions About Tides

Key Biscayne, Biscayne Bay, FL Tides - Dec 1943

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed12:262.41:062.56:59-0.17:340.37:496:29Waxing Crescent1Wed
2Thu1:212.32:012.47:560.08:350.37:506:29Waxing Crescent2Thu
3Fri2:212.32:582.48:590.19:390.37:516:29First Quarter3Fri
4Sat3:262.23:582.310:060.210:450.27:516:29First Quarter4Sat
5Sun4:322.24:592.311:130.311:470.17:526:29First Quarter5Sun
6Mon5:392.35:592.312:160.37:536:29Waxing Gibbous6Mon
7Tue6:402.36:552.312:450.01:140.37:546:30Waxing Gibbous7Tue
8Wed7:372.47:482.31:38-0.12:080.27:546:30Waxing Gibbous8Wed
9Thu8:282.48:362.32:28-0.22:570.27:556:30Waxing Gibbous9Thu
10Fri9:152.59:212.33:14-0.23:430.27:566:30Full Moon10Fri
11Sat9:582.410:042.23:59-0.24:270.27:566:30Full Moon11Sat
12Sun10:402.410:452.24:41-0.25:090.27:576:31Full Moon12Sun
13Mon11:192.311:252.15:23-0.15:510.37:576:31Waning Gibbous13Mon
14Tue11:582.26:030.06:320.37:586:31Waning Gibbous14Tue
15Wed12:052.012:372.16:440.17:140.47:596:32Waning Gibbous15Wed
16Thu12:461.91:172.17:260.27:580.47:596:32Waning Gibbous16Thu
17Fri1:301.91:592.08:090.38:450.58:006:32Waning Gibbous17Fri
18Sat2:171.82:431.98:570.49:350.58:006:33Third Quarter18Sat
19Sun3:091.73:311.89:500.510:280.48:016:33Third Quarter19Sun
20Mon4:051.74:221.810:470.511:210.38:026:34Third Quarter20Mon
21Tue5:041.85:161.811:450.58:026:34Third Quarter21Tue
22Wed6:021.96:111.912:120.212:390.48:036:35Waning Crescent22Wed
23Thu6:582.07:051.91:020.11:310.38:036:35Waning Crescent23Thu
24Fri7:512.17:572.01:50-0.12:200.28:046:36Waning Crescent24Fri
25Sat8:422.28:482.12:38-0.33:080.18:046:36New Moon25Sat
26Sun9:322.49:382.23:25-0.43:560.08:046:37New Moon26Sun
27Mon10:202.410:292.34:14-0.54:44-0.18:056:37New Moon27Mon
28Tue11:092.511:202.35:03-0.55:34-0.28:056:38New Moon28Tue
29Wed11:582.45:54-0.56:26-0.28:066:39Waxing Crescent29Wed
30Thu12:132.312:492.46:47-0.57:21-0.28:066:39Waxing Crescent30Thu
31Fri1:082.21:412.37:43-0.38:18-0.28:066:40Waxing Crescent31Fri
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 neap phase. Tonight's moon is 58% 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 First Quarter (58% 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