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

TIDE TIMES for Wednesday, July 22, 2026
The tide is currently rising in Largo Sound, Key Largo, FL.
Next low tide (tomorrow) : 1:07 am (0.3 ft)
Next high tide : in 4h 08m at 6:21 pm (0.7 ft)
Sunset today : 8:11 pm
Sunrise tomorrow : 6:44 am
Moon phase : First Quarter (62% illuminated)
Tide Station Location : Station #8723651
Common Questions About Tides

Largo Sound, Key Largo, FL Tides - Aug 1972

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue3:360.94:230.910:25-0.110:550.26:498:06Third Quarter1Tue
2Wed4:290.85:250.811:26-0.111:590.26:498:05Third Quarter2Wed
3Thu5:300.86:320.812:310.06:498:05Third Quarter3Thu
4Fri6:370.87:410.91:070.21:37-0.16:508:04Waning Crescent4Fri
5Sat7:460.88:450.92:130.22:41-0.16:508:04Waning Crescent5Sat
6Sun8:520.99:420.93:140.23:40-0.16:518:03Waning Crescent6Sun
7Mon9:510.910:341.04:110.14:35-0.16:518:02New Moon7Mon
8Tue10:450.911:201.05:040.15:25-0.16:528:01New Moon8Tue
9Wed11:341.05:520.06:13-0.16:528:01New Moon9Wed
10Thu12:031.012:201.06:380.06:580.06:538:00New Moon10Thu
11Fri12:431.01:030.97:220.07:410.06:537:59Waxing Crescent11Fri
12Sat1:210.91:450.98:040.08:230.16:547:58Waxing Crescent12Sat
13Sun1:580.92:260.98:450.09:050.26:547:58Waxing Crescent13Sun
14Mon2:350.93:080.89:260.19:480.36:547:57Waxing Crescent14Mon
15Tue3:130.83:520.810:100.210:340.36:557:56First Quarter15Tue
16Wed3:540.84:400.810:580.211:250.46:557:55First Quarter16Wed
17Thu4:400.75:350.711:510.26:567:54First Quarter17Thu
18Fri5:350.76:360.712:220.412:490.36:567:53First Quarter18Fri
19Sat6:360.77:370.81:230.41:470.26:577:52Waxing Gibbous19Sat
20Sun7:390.78:340.82:200.42:410.26:577:52Waxing Gibbous20Sun
21Mon8:380.89:240.93:120.43:300.26:577:51Waxing Gibbous21Mon
22Tue9:320.810:100.93:590.34:160.16:587:50Waxing Gibbous22Tue
23Wed10:210.910:531.04:420.25:000.16:587:49Full Moon23Wed
24Thu11:081.011:341.05:240.15:430.06:597:48Full Moon24Thu
25Fri11:541.06:050.06:260.06:597:47Full Moon25Fri
26Sat12:151.012:401.06:480.07:100.07:007:46Waning Gibbous26Sat
27Sun12:571.01:271.07:32-0.17:570.17:007:45Waning Gibbous27Sun
28Mon1:401.02:171.08:18-0.18:460.17:007:44Waning Gibbous28Mon
29Tue2:261.03:091.09:090.09:390.27:017:43Waning Gibbous29Tue
30Wed3:170.94:071.010:060.010:390.37:017:42Third Quarter30Wed
31Thu4:140.95:110.911:100.111:460.37:017:41Third Quarter31Thu
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 9:44 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 transitional phase. Tonight's moon is 62% 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 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 (62% illuminated). This places Largo Sound, Key Largo, 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