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

TIDE TIMES for Thursday, July 23, 2026
The tide is currently falling in Largo Sound, Key Largo, FL.
Next low tide : in 6h 22m at 1:31 pm (0.1 ft)
Next high tide : 7:20 pm (0.7 ft)
Sunset today : 8:11 pm
Sunrise tomorrow : 6:44 am
Moon phase : Waxing Gibbous (71% illuminated)
Tide Station Location : Station #8723651
Common Questions About Tides

Largo Sound, Key Largo, FL Tides - Apr 1971

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu2:560.83:050.89:360.110:040.06:136:37First Quarter1Thu
2Fri3:560.84:070.710:400.211:100.16:126:38First Quarter2Fri
3Sat5:000.75:150.711:480.26:116:38First Quarter3Sat
4Sun6:050.76:220.712:160.112:520.26:106:39Waxing Gibbous4Sun
5Mon7:030.77:220.71:170.11:470.26:096:39Waxing Gibbous5Mon
6Tue7:510.78:130.72:100.12:350.16:086:39Waxing Gibbous6Tue
7Wed8:330.88:560.82:560.13:160.16:076:40Waxing Gibbous7Wed
8Thu9:100.89:350.83:370.13:530.06:066:40Waxing Gibbous8Thu
9Fri9:460.810:130.84:150.14:280.06:056:41Full Moon9Fri
10Sat10:210.810:490.94:500.15:010.06:046:41Full Moon10Sat
11Sun10:560.811:260.95:250.15:34-0.16:036:42Full Moon11Sun
12Mon11:310.85:580.16:07-0.16:026:42Full Moon12Mon
13Tue12:030.912:060.86:310.16:410.06:016:43Waning Gibbous13Tue
14Wed12:430.812:420.87:070.27:190.06:006:43Waning Gibbous14Wed
15Thu1:240.81:230.77:470.28:030.05:596:43Waning Gibbous15Thu
16Fri2:110.82:090.78:340.28:540.05:586:44Waning Gibbous16Fri
17Sat3:030.83:060.79:300.29:560.15:576:44Third Quarter17Sat
18Sun4:010.84:130.710:370.211:050.15:566:45Third Quarter18Sun
19Mon5:040.85:260.811:460.25:556:45Third Quarter19Mon
20Tue6:060.86:360.812:150.112:500.15:546:46Waning Crescent20Tue
21Wed7:050.87:400.91:200.01:490.05:536:46Waning Crescent21Wed
22Thu8:000.98:381.02:190.02:43-0.25:536:47Waning Crescent22Thu
23Fri8:520.99:311.03:13-0.13:34-0.35:526:47New Moon23Fri
24Sat9:420.910:221.04:05-0.14:24-0.35:516:48New Moon24Sat
25Sun11:311.05:55-0.16:13-0.36:507:48New Moon25Sun
26Mon12:121.012:200.96:44-0.17:02-0.36:497:49New Moon26Mon
27Tue1:011.01:080.97:330.07:52-0.26:487:49Waxing Crescent27Tue
28Wed1:501.01:570.98:240.08:44-0.16:487:50Waxing Crescent28Wed
29Thu2:400.92:480.89:170.19:390.06:477:50Waxing Crescent29Thu
30Fri3:310.83:420.810:130.210:370.16:467:51First Quarter30Fri
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 4:25 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 71% 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 Waxing Gibbous (71% 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