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 4h 23m 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 - Feb 1971

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon2:460.82:570.89:22-0.19:52-0.27:046:05First Quarter1Mon
2Tue3:450.83:530.710:230.010:53-0.27:046:06First Quarter2Tue
3Wed4:490.74:550.711:280.111:58-0.17:036:07First Quarter3Wed
4Thu5:570.76:030.712:340.17:036:08Waxing Gibbous4Thu
5Fri7:050.77:090.71:02-0.11:380.17:026:08Waxing Gibbous5Fri
6Sat8:060.78:090.72:03-0.12:350.17:016:09Waxing Gibbous6Sat
7Sun8:570.79:010.72:57-0.13:270.17:016:10Waxing Gibbous7Sun
8Mon9:410.89:460.73:45-0.14:120.07:006:10Full Moon8Mon
9Tue10:190.810:270.74:28-0.14:530.07:006:11Full Moon9Tue
10Wed10:540.811:050.85:08-0.15:31-0.16:596:12Full Moon10Wed
11Thu11:270.811:420.85:45-0.16:07-0.16:586:12Full Moon11Thu
12Fri12:000.86:21-0.16:40-0.16:586:13Waning Gibbous12Fri
13Sat12:180.812:320.86:55-0.17:13-0.16:576:14Waning Gibbous13Sat
14Sun12:540.71:040.77:280.07:46-0.16:566:14Waning Gibbous14Sun
15Mon1:320.71:370.78:020.18:210.06:566:15Waning Gibbous15Mon
16Tue2:120.72:130.78:400.19:000.06:556:15Third Quarter16Tue
17Wed2:570.72:540.69:240.29:490.06:546:16Third Quarter17Wed
18Thu3:500.63:440.610:190.210:490.06:546:17Third Quarter18Thu
19Fri4:530.64:480.611:250.211:570.06:536:17Third Quarter19Fri
20Sat6:030.66:020.612:350.26:526:18Waning Crescent20Sat
21Sun7:100.77:130.71:04-0.11:410.16:516:18Waning Crescent21Sun
22Mon8:090.88:170.82:06-0.12:390.06:506:19Waning Crescent22Mon
23Tue9:010.89:150.83:02-0.23:32-0.16:496:20Waning Crescent23Tue
24Wed9:500.910:080.93:55-0.34:22-0.26:496:20New Moon24Wed
25Thu10:360.910:591.04:46-0.35:11-0.36:486:21New Moon25Thu
26Fri11:210.911:491.05:35-0.35:59-0.46:476:21New Moon26Fri
27Sat12:070.96:24-0.36:47-0.46:466:22Waxing Crescent27Sat
28Sun12:391.012:530.97:14-0.27:37-0.46:456:22Waxing Crescent28Sun
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