Tides Today & Tomorrow in Key Largo, South Sound, FL

TIDE TIMES for Tuesday, August 4, 2026
The tide is currently falling in Key Largo, South Sound, FL.
Next low tide : in 4h 24m at 8:31 am (0.0 ft)
Next high tide : 1:53 pm (1.6 ft)
Sunset today : 8:04 pm
Sunrise tomorrow : 6:50 am
Moon phase : Third Quarter (66% illuminated)
Tide Station Location : Station #8723667
Common Questions About Tides

Key Largo, South Sound, FL Tides - Dec 1968

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun6:271.76:291.61:100.11:390.46:505:31Waxing Gibbous1Sun
2Mon7:101.87:101.61:520.12:200.36:505:31Waxing Gibbous2Mon
3Tue7:491.87:491.62:320.13:000.36:515:31Full Moon3Tue
4Wed8:281.88:271.63:100.13:380.36:525:31Full Moon4Wed
5Thu9:051.79:041.63:470.14:150.36:535:32Full Moon5Thu
6Fri9:431.79:431.54:230.14:510.46:535:32Full Moon6Fri
7Sat10:221.710:221.55:000.15:290.46:545:32Waning Gibbous7Sat
8Sun11:021.611:031.55:360.16:070.46:555:32Waning Gibbous8Sun
9Mon11:421.611:481.46:150.26:490.46:555:32Waning Gibbous9Mon
10Tue12:241.56:580.27:350.46:565:33Waning Gibbous10Tue
11Wed12:371.41:091.57:460.38:260.36:575:33Third Quarter11Wed
12Thu1:311.41:561.58:430.39:220.36:575:33Third Quarter12Thu
13Fri2:311.42:471.59:450.310:190.26:585:33Third Quarter13Fri
14Sat3:331.53:431.510:480.311:160.16:585:34Third Quarter14Sat
15Sun4:361.64:401.511:490.36:595:34Waning Crescent15Sun
16Mon5:361.75:381.612:12-0.112:470.27:005:35Waning Crescent16Mon
17Tue6:341.86:361.71:07-0.21:410.17:005:35Waning Crescent17Tue
18Wed7:301.97:321.72:01-0.32:350.17:015:35New Moon18Wed
19Thu8:231.98:271.82:54-0.43:270.07:015:36New Moon19Thu
20Fri9:151.99:221.83:48-0.44:200.07:025:36New Moon20Fri
21Sat10:071.910:161.84:41-0.45:140.07:025:37Waxing Crescent21Sat
22Sun10:581.911:111.75:35-0.36:090.07:035:37Waxing Crescent22Sun
23Mon11:491.86:31-0.27:060.07:035:38Waxing Crescent23Mon
24Tue12:071.612:401.77:28-0.18:040.07:045:38Waxing Crescent24Tue
25Wed1:051.61:311.68:270.19:030.07:045:39First Quarter25Wed
26Thu2:051.52:241.59:280.210:010.07:055:40First Quarter26Thu
27Fri3:061.43:171.410:280.210:560.07:055:40First Quarter27Fri
28Sat4:061.44:111.311:260.311:480.07:055:41Waxing Gibbous28Sat
29Sun5:041.45:041.312:200.37:065:41Waxing Gibbous29Sun
30Mon5:561.45:531.312:370.01:090.37:065:42Waxing Gibbous30Mon
31Tue6:431.56:401.31:230.01:540.37:065:43Waxing Gibbous31Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8723667)

Common Questions About Key Largo, South Sound, FL Tides

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What time does the tide turn (slack tide) in Key Largo, South Sound, FL today?

Slack tide in Key Largo, South Sound, FL is approximately 11:12 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 Largo, South Sound, FL?

Key Largo, South Sound, FL is currently in a transitional phase. Tonight's moon is 66% 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 shifting between spring and neap.

What datum are Key Largo, South Sound, 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 Largo, South Sound, FL?

Tide predictions for Key Largo, South Sound, 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 Largo, South Sound, FL?

Tide data for Key Largo, South Sound, FL is sourced from NOAA Station #8723667. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8723667.

What is the moon phase in Key Largo, South Sound, FL tonight?

Tonight the moon over Key Largo, South Sound, FL is Third Quarter (66% illuminated). This places Key Largo, South Sound, FL in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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