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 4h 21m 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 - May 1928

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue9:310.89:590.83:530.14:130.06:457:51Waxing Gibbous1Tue
2Wed10:100.810:390.94:360.14:520.06:447:52Waxing Gibbous2Wed
3Thu10:470.811:170.95:160.15:280.06:447:52Full Moon3Thu
4Fri11:220.811:530.95:530.16:04-0.16:437:53Full Moon4Fri
5Sat11:570.86:290.16:380.06:427:53Full Moon5Sat
6Sun12:290.912:320.87:040.17:120.06:417:54Full Moon6Sun
7Mon1:060.91:080.87:380.27:460.06:417:54Waning Gibbous7Mon
8Tue1:440.81:450.78:130.28:220.06:407:55Waning Gibbous8Tue
9Wed2:250.82:250.78:510.29:020.16:407:55Waning Gibbous9Wed
10Thu3:080.83:100.79:350.39:490.16:397:56Waning Gibbous10Thu
11Fri3:560.84:020.710:270.310:450.16:387:56Third Quarter11Fri
12Sat4:490.75:030.711:270.311:490.16:387:57Third Quarter12Sat
13Sun5:460.86:090.712:310.26:377:57Third Quarter13Sun
14Mon6:440.87:160.812:560.11:320.16:377:58Third Quarter14Mon
15Tue7:420.88:200.81:590.12:290.06:367:58Waning Crescent15Tue
16Wed8:370.89:180.92:580.03:22-0.16:367:59Waning Crescent16Wed
17Thu9:310.910:131.03:530.04:14-0.26:357:59Waning Crescent17Thu
18Fri10:230.911:061.04:46-0.15:04-0.36:358:00New Moon18Fri
19Sat11:140.911:571.05:37-0.15:55-0.46:348:00New Moon19Sat
20Sun12:050.96:28-0.16:47-0.46:348:01New Moon20Sun
21Mon12:491.012:570.97:20-0.17:40-0.36:348:01Waxing Crescent21Mon
22Tue1:411.01:500.98:140.08:34-0.26:338:02Waxing Crescent22Tue
23Wed2:331.02:450.99:100.09:32-0.16:338:02Waxing Crescent23Wed
24Thu3:270.93:430.810:100.110:330.06:338:03First Quarter24Thu
25Fri4:230.84:430.811:120.111:360.06:328:03First Quarter25Fri
26Sat5:200.85:470.712:150.16:328:04First Quarter26Sat
27Sun6:170.86:500.712:390.11:140.16:328:04First Quarter27Sun
28Mon7:110.87:480.81:380.12:070.16:318:05Waxing Gibbous28Mon
29Tue8:020.78:400.82:310.22:540.06:318:05Waxing Gibbous29Tue
30Wed8:470.79:260.83:190.23:370.06:318:06Waxing Gibbous30Wed
31Thu9:300.710:080.84:030.24:170.06:318:06Waxing Gibbous31Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8723651)

Common Questions About Largo Sound, Key Largo, FL Tides

Show All
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