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

TIDE TIMES for Tuesday, August 4, 2026
The tide is currently rising in Largo Sound, Key Largo, FL.
Next low tide (tomorrow) : 10:38 am (0.0 ft)
Next high tide (tomorrow) : in 5h 07m at 3:47 am (0.8 ft)
Sunset today : 8:04 pm
Sunrise tomorrow : 6:50 am
Moon phase : Third Quarter (66% illuminated)
Tide Station Location : Station #8723651
Common Questions About Tides

Largo Sound, Key Largo, FL Tides - Apr 1953

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed11:430.86:080.16:18-0.16:136:37Waning Gibbous1Wed
2Thu12:150.812:180.86:420.16:53-0.16:116:38Waning Gibbous2Thu
3Fri12:540.812:550.87:180.17:320.06:106:38Waning Gibbous3Fri
4Sat1:370.81:350.77:590.28:170.06:096:39Waning Gibbous4Sat
5Sun2:240.82:230.78:480.29:110.06:086:39Third Quarter5Sun
6Mon3:190.83:220.79:470.210:160.06:076:40Third Quarter6Mon
7Tue4:210.74:320.710:560.211:270.06:066:40Third Quarter7Tue
8Wed5:260.85:470.812:070.26:056:41Third Quarter8Wed
9Thu6:300.86:570.812:370.01:110.16:046:41Waning Crescent9Thu
10Fri7:290.88:000.91:410.02:09-0.16:036:41Waning Crescent10Fri
11Sat8:230.98:561.02:39-0.13:03-0.26:026:42Waning Crescent11Sat
12Sun9:130.99:491.03:32-0.13:53-0.36:016:42New Moon12Sun
13Mon10:021.010:391.04:23-0.14:42-0.36:016:43New Moon13Mon
14Tue10:491.011:271.05:12-0.15:31-0.36:006:43New Moon14Tue
15Wed11:360.96:01-0.16:19-0.35:596:44Waxing Crescent15Wed
16Thu12:151.012:230.96:490.07:08-0.25:586:44Waxing Crescent16Thu
17Fri1:040.91:110.97:380.07:59-0.15:576:45Waxing Crescent17Fri
18Sat1:530.92:010.88:310.18:530.05:566:45Waxing Crescent18Sat
19Sun2:440.82:540.79:270.29:520.15:556:45First Quarter19Sun
20Mon3:390.83:520.710:280.310:540.25:546:46First Quarter20Mon
21Tue4:360.74:540.711:310.311:560.25:536:46First Quarter21Tue
22Wed5:330.75:580.712:310.25:526:47First Quarter22Wed
23Thu6:270.76:560.712:540.21:230.25:516:47Waxing Gibbous23Thu
24Fri7:160.77:470.71:460.22:090.15:516:48Waxing Gibbous24Fri
25Sat8:000.78:320.82:320.22:500.15:506:48Waxing Gibbous25Sat
26Sun9:410.810:140.84:140.24:280.06:497:49Waxing Gibbous26Sun
27Mon10:210.810:540.94:530.15:040.06:487:49Full Moon27Mon
28Tue11:000.811:340.95:300.15:390.06:477:50Full Moon28Tue
29Wed11:380.86:060.16:15-0.16:477:50Full Moon29Wed
30Thu12:140.912:170.86:420.16:52-0.16:467:51Full Moon30Thu
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 7:12 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 transitional phase. Tonight's moon is 66% 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 Third Quarter (66% 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