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

TIDE TIMES for Sunday, June 21, 2026
The tide is currently falling in Largo Sound, Key Largo, FL.
Next low tide : in 4h 45m at 11:53 pm (0.1 ft)
Next high tide (tomorrow) : 5:22 am (0.8 ft)
Sunset today : 8:14 pm
Sunrise tomorrow : 6:32 am
Moon phase : First Quarter (48% illuminated)
Tide Station Location : Station #8723651
Common Questions About Tides

Largo Sound, Key Largo, FL Tides - Dec 2009

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue9:431.09:450.93:40-0.14:110.26:505:31Full Moon1Tue
2Wed10:321.010:351.04:27-0.14:580.26:505:31Full Moon2Wed
3Thu11:211.011:261.05:15-0.15:470.16:515:31Full Moon3Thu
4Fri12:111.06:06-0.16:380.16:525:31Waning Gibbous4Fri
5Sat12:191.01:011.06:58-0.17:320.16:525:31Waning Gibbous5Sat
6Sun1:151.01:531.07:540.08:300.16:535:31Waning Gibbous6Sun
7Mon2:140.92:461.08:540.09:320.16:545:32Third Quarter7Mon
8Tue3:150.93:420.99:580.110:340.16:545:32Third Quarter8Tue
9Wed4:200.94:390.911:030.211:360.06:555:32Third Quarter9Wed
10Thu5:250.95:380.912:070.26:565:32Third Quarter10Thu
11Fri6:280.96:360.912:350.01:070.26:565:33Waning Crescent11Fri
12Sat7:270.97:320.81:300.02:020.26:575:33Waning Crescent12Sat
13Sun8:200.98:230.82:210.02:520.26:585:33Waning Crescent13Sun
14Mon9:090.99:100.83:09-0.13:390.26:585:34New Moon14Mon
15Tue9:530.99:540.83:54-0.14:230.26:595:34New Moon15Tue
16Wed10:340.910:350.84:37-0.15:050.26:595:34New Moon16Wed
17Thu11:140.911:150.85:190.05:460.27:005:35New Moon17Thu
18Fri11:510.911:550.85:580.06:260.27:015:35Waxing Crescent18Fri
19Sat12:280.96:370.07:060.27:015:36Waxing Crescent19Sat
20Sun12:350.81:050.87:150.17:450.27:025:36Waxing Crescent20Sun
21Mon1:160.81:420.87:540.18:250.27:025:37Waxing Crescent21Mon
22Tue1:590.72:210.88:350.29:080.27:035:37First Quarter22Tue
23Wed2:460.73:010.79:200.29:540.27:035:38First Quarter23Wed
24Thu3:360.73:460.710:110.310:440.17:045:38First Quarter24Thu
25Fri4:320.74:360.711:090.311:390.17:045:39First Quarter25Fri
26Sat5:310.75:320.712:090.37:045:39Waxing Gibbous26Sat
27Sun6:330.86:320.712:350.01:080.27:055:40Waxing Gibbous27Sun
28Mon7:330.87:320.81:300.02:040.27:055:40Waxing Gibbous28Mon
29Tue8:300.98:300.82:25-0.12:580.17:065:41Waxing Gibbous29Tue
30Wed9:240.99:260.83:18-0.23:500.17:065:42Full Moon30Wed
31Thu10:150.910:210.94:10-0.34:420.07:065:42Full Moon31Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8723651)

Common Questions About Largo Sound, Key Largo, FL Tides

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

Slack tide in Largo Sound, Key Largo, FL is approximately 2:37 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 Largo Sound, Key Largo, FL?

Largo Sound, Key Largo, FL is currently in a neap phase. Tonight's moon is 48% 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 Largo Sound, Key Largo, 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 Largo Sound, Key Largo, FL?

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

Tide data for Largo Sound, Key Largo, FL is sourced from NOAA Station #8723651. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8723651.

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

Tonight the moon over Largo Sound, Key Largo, FL is First Quarter (48% illuminated). This places Largo Sound, Key Largo, 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