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

TIDE TIMES for Wednesday, August 19, 2026
The tide is currently falling in Largo Sound, Key Largo, FL.
Next low tide : in 57m at 10:58 am (0.2 ft)
Next high tide : 4:41 pm (0.8 ft)
Sunset today : 7:53 pm
Sunrise tomorrow : 6:57 am
Moon phase : First Quarter (46% illuminated)
Tide Station Location : Station #8723651
Common Questions About Tides

Largo Sound, Key Largo, FL Tides - Jan 1928

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun5:050.85:180.811:430.17:065:42First Quarter1Sun
2Mon6:110.86:190.812:14-0.112:480.17:075:43Waxing Gibbous2Mon
3Tue7:150.97:210.81:14-0.21:480.17:075:44Waxing Gibbous3Tue
4Wed8:150.98:200.82:11-0.22:460.07:075:44Waxing Gibbous4Wed
5Thu9:100.99:150.93:06-0.33:390.07:075:45Full Moon5Thu
6Fri10:020.910:080.93:59-0.34:310.07:085:46Full Moon6Fri
7Sat10:510.910:580.94:50-0.35:21-0.17:085:47Full Moon7Sat
8Sun11:380.911:460.95:40-0.36:10-0.17:085:47Full Moon8Sun
9Mon12:220.96:28-0.26:580.07:085:48Waning Gibbous9Mon
10Tue12:330.81:060.97:16-0.27:460.07:085:49Waning Gibbous10Tue
11Wed1:200.81:470.88:03-0.18:340.07:085:49Waning Gibbous11Wed
12Thu2:060.72:290.88:510.09:230.07:085:50Waning Gibbous12Thu
13Fri2:540.73:110.79:410.110:130.17:085:51Third Quarter13Fri
14Sat3:440.73:550.710:340.211:040.17:085:52Third Quarter14Sat
15Sun4:380.64:430.611:290.211:560.17:085:52Third Quarter15Sun
16Mon5:340.65:360.612:240.27:085:53Third Quarter16Mon
17Tue6:310.76:310.612:470.01:180.27:085:54Waning Crescent17Tue
18Wed7:260.77:250.61:360.02:080.27:085:55Waning Crescent18Wed
19Thu8:180.78:170.72:230.02:540.27:085:55Waning Crescent19Thu
20Fri9:060.89:060.73:07-0.13:380.17:085:56Waning Crescent20Fri
21Sat9:510.89:530.73:50-0.14:200.17:085:57New Moon21Sat
22Sun10:340.810:380.84:33-0.25:020.07:085:58New Moon22Sun
23Mon11:170.811:230.85:15-0.25:440.07:075:58New Moon23Mon
24Tue11:580.95:58-0.26:26-0.17:075:59Waxing Crescent24Tue
25Wed12:090.812:410.96:42-0.27:11-0.17:076:00Waxing Crescent25Wed
26Thu12:570.81:240.87:29-0.27:59-0.27:076:01Waxing Crescent26Thu
27Fri1:470.82:090.88:20-0.18:50-0.27:066:01Waxing Crescent27Fri
28Sat2:410.82:580.89:15-0.19:46-0.27:066:02First Quarter28Sat
29Sun3:400.83:520.710:160.010:47-0.27:066:03First Quarter29Sun
30Mon4:440.84:520.711:210.111:51-0.27:056:04First Quarter30Mon
31Tue5:520.85:590.712:280.17:056:04Waxing Gibbous31Tue
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 1:49 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 Largo Sound, Key Largo, FL?

Largo Sound, Key Largo, FL is currently in a neap phase. Tonight's moon is 46% 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 (46% 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