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 : 12:37 pm (0.1 ft)
Next high tide : in 5h 03m at 5:28 am (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 - Jul 1973

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun12:060.96:24-0.16:46-0.36:358:15New Moon1Sun
2Mon12:451.01:000.97:18-0.17:40-0.36:358:15Waxing Crescent2Mon
3Tue1:341.01:540.98:11-0.28:33-0.26:358:15Waxing Crescent3Tue
4Wed2:221.02:470.99:05-0.19:28-0.16:368:15Waxing Crescent4Wed
5Thu3:100.93:410.99:59-0.110:230.06:368:15First Quarter5Thu
6Fri3:590.94:350.810:54-0.111:190.16:368:15First Quarter6Fri
7Sat4:480.85:320.811:490.06:378:15First Quarter7Sat
8Sun5:390.76:300.712:170.212:440.06:378:15First Quarter8Sun
9Mon6:330.77:280.71:140.21:380.06:388:15Waxing Gibbous9Mon
10Tue7:280.78:230.72:080.22:300.06:388:15Waxing Gibbous10Tue
11Wed8:220.79:140.73:000.23:190.06:398:14Waxing Gibbous11Wed
12Thu9:120.710:000.83:480.24:050.06:398:14Waxing Gibbous12Thu
13Fri9:590.710:420.84:330.24:480.06:398:14Full Moon13Fri
14Sat10:430.711:210.85:150.25:280.06:408:14Full Moon14Sat
15Sun11:250.85:550.16:060.06:408:14Full Moon15Sun
16Mon12:000.812:070.86:330.16:430.06:418:13Full Moon16Mon
17Tue12:370.812:470.87:090.17:190.06:418:13Waning Gibbous17Tue
18Wed1:140.81:280.87:450.17:560.06:428:13Waning Gibbous18Wed
19Thu1:500.82:100.88:220.08:360.16:428:12Waning Gibbous19Thu
20Fri2:270.82:530.89:020.09:190.16:438:12Waning Gibbous20Fri
21Sat3:060.83:410.89:460.010:080.16:438:12Third Quarter21Sat
22Sun3:490.84:350.810:370.011:050.26:448:11Third Quarter22Sun
23Mon4:380.85:350.811:350.06:448:11Third Quarter23Mon
24Tue5:360.86:410.812:080.212:390.06:458:10Third Quarter24Tue
25Wed6:430.87:490.81:140.21:44-0.16:458:10Waning Crescent25Wed
26Thu7:520.88:530.92:200.22:48-0.16:468:10Waning Crescent26Thu
27Fri8:590.99:510.93:220.13:48-0.26:468:09Waning Crescent27Fri
28Sat10:010.910:451.04:200.04:44-0.26:478:09New Moon28Sat
29Sun10:581.011:351.05:150.05:38-0.26:478:08New Moon29Sun
30Mon11:511.06:07-0.16:30-0.26:478:07New Moon30Mon
31Tue12:231.012:431.06:58-0.17:20-0.26:488:07Waxing Crescent31Tue
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 9:02 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 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