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

TIDE TIMES for Saturday, July 25, 2026
The tide is currently falling in Key Biscayne, Biscayne Bay, FL.
Next low tide (tomorrow) : in 2h 50m at 2:12 am (0.5 ft)
Next high tide (tomorrow) : 7:36 am (1.7 ft)
Sunset today : 8:10 pm
Sunrise tomorrow : 6:43 am
Moon phase : Waxing Gibbous (86% illuminated)
Tide Station Location : Station #8723232
Common Questions About Tides

Key Biscayne, Biscayne Bay, FL Tides - Jun 2078

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed1:552.02:041.88:220.38:390.16:298:08Third Quarter1Wed
2Thu2:431.93:021.89:190.39:400.16:298:08Third Quarter2Thu
3Fri3:361.94:061.810:190.210:450.26:298:09Third Quarter3Fri
4Sat4:311.95:121.911:200.011:490.26:298:09Third Quarter4Sat
5Sun5:292.06:162.112:19-0.26:288:09Waning Crescent5Sun
6Mon6:272.07:172.212:510.11:15-0.36:288:10Waning Crescent6Mon
7Tue7:242.18:152.31:480.02:10-0.56:288:10Waning Crescent7Tue
8Wed8:202.19:092.42:430.03:03-0.66:288:11New Moon8Wed
9Thu9:152.210:022.43:36-0.13:55-0.66:288:11New Moon9Thu
10Fri10:072.210:532.44:28-0.14:47-0.66:288:11New Moon10Fri
11Sat10:592.211:432.35:20-0.15:40-0.56:288:12New Moon11Sat
12Sun11:512.16:120.06:32-0.46:298:12Waxing Crescent12Sun
13Mon12:322.312:432.07:060.17:25-0.26:298:12Waxing Crescent13Mon
14Tue1:212.11:351.98:000.18:200.06:298:13Waxing Crescent14Tue
15Wed2:092.02:281.88:560.29:160.16:298:13First Quarter15Wed
16Thu2:571.93:231.89:520.210:120.36:298:13First Quarter16Thu
17Fri3:461.84:201.710:460.211:080.46:298:14First Quarter17Fri
18Sat4:341.75:161.711:380.26:298:14First Quarter18Sat
19Sun5:231.76:101.712:020.412:260.16:308:14Waxing Gibbous19Sun
20Mon6:121.77:011.812:530.41:110.16:308:14Waxing Gibbous20Mon
21Tue7:001.77:481.91:400.41:540.06:308:15Waxing Gibbous21Tue
22Wed7:471.78:331.92:240.42:360.06:308:15Waxing Gibbous22Wed
23Thu8:331.89:172.03:060.33:16-0.16:308:15Full Moon23Thu
24Fri9:171.810:002.03:460.33:56-0.16:318:15Full Moon24Fri
25Sat10:001.810:422.14:260.34:36-0.26:318:15Full Moon25Sat
26Sun10:431.911:252.15:060.25:16-0.26:318:15Full Moon26Sun
27Mon11:271.95:470.25:58-0.26:328:16Waning Gibbous27Mon
28Tue12:072.112:131.96:300.26:42-0.16:328:16Waning Gibbous28Tue
29Wed12:492.11:011.97:150.17:30-0.16:328:16Waning Gibbous29Wed
30Thu1:332.01:521.98:050.18:230.06:338:16Waning Gibbous30Thu
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 4:54 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 86% 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 Gibbous (86% 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