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

TIDE TIMES for Wednesday, July 15, 2026
The tide is currently rising in Key Biscayne, Biscayne Bay, FL.
Next low tide : 5:21 pm (-0.5 ft)
Next high tide : in 1h 50m at 10:43 am (2.3 ft)
Sunset today : 8:14 pm
Sunrise tomorrow : 6:39 am
Moon phase : New Moon (2% illuminated)
Tide Station Location : Station #8723232
Common Questions About Tides

Key Biscayne, Biscayne Bay, FL Tides - Oct 2066

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri8:142.78:342.72:220.32:480.37:137:07Waxing Gibbous1Fri
2Sat9:032.89:192.73:090.13:350.37:137:06Full Moon2Sat
3Sun9:492.810:012.73:540.14:200.37:147:05Full Moon3Sun
4Mon10:322.810:422.64:370.15:030.47:147:04Full Moon4Mon
5Tue11:142.711:212.65:190.15:450.57:147:02Waning Gibbous5Tue
6Wed11:552.66:010.26:270.67:157:01Waning Gibbous6Wed
7Thu12:002.512:362.56:430.47:090.87:157:00Waning Gibbous7Thu
8Fri12:402.31:192.47:260.57:540.97:166:59Waning Gibbous8Fri
9Sat1:232.22:052.38:130.78:451.07:166:58Third Quarter9Sat
10Sun2:102.12:552.29:060.89:431.17:176:57Third Quarter10Sun
11Mon3:052.13:502.110:060.910:451.17:176:56Third Quarter11Mon
12Tue4:052.14:482.111:070.911:441.07:186:55Third Quarter12Tue
13Wed5:082.15:432.212:050.97:186:54Waning Crescent13Wed
14Thu6:082.26:342.312:360.912:560.87:196:53Waning Crescent14Thu
15Fri7:022.37:212.41:210.71:430.77:196:53Waning Crescent15Fri
16Sat7:512.58:052.52:030.62:260.67:206:52Waning Crescent16Sat
17Sun8:372.68:482.52:430.43:080.57:206:51New Moon17Sun
18Mon9:222.79:312.63:230.23:500.57:216:50New Moon18Mon
19Tue10:072.810:142.64:050.14:330.57:216:49New Moon19Tue
20Wed10:532.810:592.64:480.15:170.57:226:48New Moon20Wed
21Thu11:412.811:472.65:340.06:040.57:226:47Waxing Crescent21Thu
22Fri12:322.76:230.16:550.67:236:46Waxing Crescent22Fri
23Sat12:392.51:262.67:180.27:530.67:236:45Waxing Crescent23Sat
24Sun1:372.52:242.68:180.38:570.77:246:45First Quarter24Sun
25Mon2:412.43:262.59:250.410:060.77:256:44First Quarter25Mon
26Tue3:492.44:292.510:360.511:140.67:256:43First Quarter26Tue
27Wed4:592.45:312.511:430.57:266:42Waxing Gibbous27Wed
28Thu6:052.56:282.512:160.512:450.57:266:42Waxing Gibbous28Thu
29Fri7:042.67:212.51:110.31:390.57:276:41Waxing Gibbous29Fri
30Sat7:572.78:082.62:010.22:290.57:286:40Waxing Gibbous30Sat
31Sun8:452.78:532.62:470.23:150.57:286:39Full Moon31Sun
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 2:02 pm — 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 2% 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 New Moon (2% 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