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

TIDE TIMES for Wednesday, August 5, 2026
The tide is currently falling in Key Biscayne, Biscayne Bay, FL.
Next low tide : in 1h 21m at 9:37 pm (0.4 ft)
Next high tide (tomorrow) : 3:09 am (1.9 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 2096

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu2:231.92:321.88:580.19:28-0.36:426:22First Quarter1Thu
2Fri3:311.93:401.710:060.210:37-0.26:416:23First Quarter2Fri
3Sat4:421.84:521.711:150.211:44-0.26:406:23Waxing Gibbous3Sat
4Sun5:491.86:001.812:200.26:396:24Waxing Gibbous4Sun
5Mon6:491.96:591.912:45-0.21:170.16:386:25Waxing Gibbous5Mon
6Tue7:392.07:501.91:39-0.22:080.06:376:25Waxing Gibbous6Tue
7Wed8:222.08:362.02:28-0.32:53-0.16:366:26Full Moon7Wed
8Thu9:012.19:162.03:11-0.33:34-0.26:356:26Full Moon8Thu
9Fri9:372.19:552.13:52-0.24:12-0.26:346:27Full Moon9Fri
10Sat10:102.010:312.04:30-0.24:48-0.26:336:27Full Moon10Sat
11Sun11:432.06:06-0.16:22-0.27:327:28Waning Gibbous11Sun
12Mon12:072.012:161.96:420.06:56-0.17:317:28Waning Gibbous12Mon
13Tue12:431.912:491.87:170.17:310.07:307:29Waning Gibbous13Tue
14Wed1:211.81:241.77:530.38:080.17:297:29Waning Gibbous14Wed
15Thu2:031.72:031.68:330.48:520.17:287:30Third Quarter15Thu
16Fri2:501.72:501.69:210.59:450.27:277:30Third Quarter16Fri
17Sat3:471.63:471.510:220.610:490.27:267:30Third Quarter17Sat
18Sun4:531.64:561.511:300.511:560.27:257:31Third Quarter18Sun
19Mon6:001.76:071.612:350.57:247:31Waning Crescent19Mon
20Tue7:001.87:111.812:580.11:320.37:237:32Waning Crescent20Tue
21Wed7:531.98:092.01:54-0.12:240.17:227:32Waning Crescent21Wed
22Thu8:422.19:012.22:46-0.23:11-0.17:207:33Waning Crescent22Thu
23Fri9:272.29:512.33:35-0.33:58-0.47:197:33New Moon23Fri
24Sat10:122.310:392.44:23-0.44:44-0.57:187:34New Moon24Sat
25Sun10:562.311:282.55:10-0.45:30-0.67:177:34New Moon25Sun
26Mon11:412.35:58-0.36:18-0.67:167:35Waxing Crescent26Mon
27Tue12:182.512:292.36:48-0.27:09-0.57:157:35Waxing Crescent27Tue
28Wed1:102.41:192.17:41-0.18:04-0.47:147:36Waxing Crescent28Wed
29Thu2:052.22:142.08:380.19:04-0.27:137:36First Quarter29Thu
30Fri3:052.13:161.99:420.210:11-0.17:127:36First Quarter30Fri
31Sat4:111.94:261.810:510.311:210.07:117:37First Quarter31Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8723232)

Common Questions About Key Biscayne, Biscayne Bay, FL Tides

Show All
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 12:23 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 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