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

TIDE TIMES for Sunday, August 23, 2026
The tide is currently rising in Largo Sound, Key Largo, FL.
Next low tide : 2:44 pm (0.2 ft)
Next high tide : in 1m at 7:37 am (0.7 ft)
Sunset today : 7:49 pm
Sunrise tomorrow : 6:58 am
Moon phase : Waxing Gibbous (81% illuminated)
Tide Station Location : Station #8723651
Common Questions About Tides

Largo Sound, Key Largo, FL Tides - Aug 1922

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue5:550.96:460.912:210.112:52-0.16:488:07First Quarter1Tue
2Wed6:580.87:490.91:250.21:530.06:488:06Waxing Gibbous2Wed
3Thu8:000.88:480.92:250.22:500.06:498:05Waxing Gibbous3Thu
4Fri8:580.89:410.93:210.23:430.06:498:05Waxing Gibbous4Fri
5Sat9:500.910:280.94:120.14:320.06:508:04Waxing Gibbous5Sat
6Sun10:370.911:100.94:590.15:170.06:508:03Full Moon6Sun
7Mon11:200.911:490.95:420.15:590.06:518:03Full Moon7Mon
8Tue12:000.96:230.16:390.06:518:02Full Moon8Tue
9Wed12:250.912:390.97:020.17:170.06:528:01Full Moon9Wed
10Thu1:010.91:170.97:400.17:540.16:528:01Waning Gibbous10Thu
11Fri1:360.91:560.88:160.18:310.16:538:00Waning Gibbous11Fri
12Sat2:120.92:350.88:530.19:080.26:537:59Waning Gibbous12Sat
13Sun2:480.83:170.89:310.29:480.36:547:58Waning Gibbous13Sun
14Mon3:280.84:030.810:130.210:340.36:547:57Third Quarter14Mon
15Tue4:110.84:550.811:020.211:280.36:547:57Third Quarter15Tue
16Wed5:010.85:520.811:580.26:557:56Third Quarter16Wed
17Thu5:590.86:550.812:290.412:580.26:557:55Third Quarter17Thu
18Fri7:020.87:570.81:310.31:580.16:567:54Waning Crescent18Fri
19Sat8:060.88:550.92:300.32:550.06:567:53Waning Crescent19Sat
20Sun9:060.99:481.03:260.23:490.06:577:52Waning Crescent20Sun
21Mon10:031.010:391.04:180.14:42-0.16:577:51New Moon21Mon
22Tue10:561.011:281.15:090.05:33-0.16:577:51New Moon22Tue
23Wed11:481.15:59-0.16:23-0.26:587:50New Moon23Wed
24Thu12:161.112:401.16:49-0.17:14-0.16:587:49Waxing Crescent24Thu
25Fri1:041.11:321.17:40-0.28:06-0.16:597:48Waxing Crescent25Fri
26Sat1:521.12:251.18:32-0.18:590.06:597:47Waxing Crescent26Sat
27Sun2:431.03:201.09:27-0.19:560.17:007:46Waxing Crescent27Sun
28Mon3:361.04:171.010:250.010:570.27:007:45First Quarter28Mon
29Tue4:330.95:190.911:270.17:007:44First Quarter29Tue
30Wed5:340.96:230.912:010.312:310.17:017:43First Quarter30Wed
31Thu6:380.97:270.91:060.31:340.17:017:42Waxing Gibbous31Thu
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 11:10 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 spring phase. Tonight's moon is 81% 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 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 Waxing Gibbous (81% illuminated). This places Largo Sound, Key Largo, 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