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

TIDE TIMES for Sunday, August 16, 2026
The tide is currently falling in Key Largo, South Sound, FL.
Next low tide : in 1h 34m at 7:20 am (-0.1 ft)
Next high tide : 12:28 pm (1.8 ft)
Sunset today : 7:55 pm
Sunrise tomorrow : 6:56 am
Moon phase : Waxing Crescent (18% illuminated)
Tide Station Location : Station #8723667
Common Questions About Tides

Key Largo, South Sound, FL Tides - Nov 1952

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat8:072.28:142.02:460.03:150.26:295:41Full Moon1Sat
2Sun8:532.28:582.03:310.04:010.36:305:40Full Moon2Sun
3Mon9:382.19:422.04:170.04:460.36:305:39Full Moon3Mon
4Tue10:222.010:261.95:020.15:310.46:315:39Waning Gibbous4Tue
5Wed11:071.911:111.85:480.26:180.56:315:38Waning Gibbous5Wed
6Thu11:521.811:571.76:350.37:070.66:325:38Waning Gibbous6Thu
7Fri12:391.77:260.48:020.66:335:37Third Quarter7Fri
8Sat12:481.61:291.68:210.59:010.76:335:37Third Quarter8Sat
9Sun1:441.52:211.69:200.610:010.66:345:36Third Quarter9Sun
10Mon2:431.53:131.610:200.610:560.66:355:36Third Quarter10Mon
11Tue3:441.54:051.611:160.611:450.56:355:35Third Quarter11Tue
12Wed4:411.64:541.612:070.66:365:35Waning Crescent12Wed
13Thu5:321.75:401.712:280.412:530.56:375:34Waning Crescent13Thu
14Fri6:191.86:241.71:090.31:350.56:375:34Waning Crescent14Fri
15Sat7:041.97:081.71:480.22:160.46:385:34New Moon15Sat
16Sun7:481.97:501.82:260.12:550.46:395:33New Moon16Sun
17Mon8:322.08:331.83:060.13:360.46:405:33New Moon17Mon
18Tue9:172.09:181.83:480.04:180.36:405:33New Moon18Tue
19Wed10:032.010:051.84:320.05:030.36:415:32Waxing Crescent19Wed
20Thu10:521.910:561.85:190.05:520.46:425:32Waxing Crescent20Thu
21Fri11:421.911:521.76:110.16:460.46:425:32Waxing Crescent21Fri
22Sat12:351.87:080.17:460.46:435:32Waxing Crescent22Sat
23Sun12:521.71:311.88:100.28:510.36:445:32First Quarter23Sun
24Mon1:581.72:291.89:170.39:560.26:455:31First Quarter24Mon
25Tue3:051.73:281.810:250.310:580.26:455:31First Quarter25Tue
26Wed4:111.84:271.811:280.311:550.16:465:31Waxing Gibbous26Wed
27Thu5:131.95:231.812:260.36:475:31Waxing Gibbous27Thu
28Fri6:101.96:161.812:480.01:200.36:485:31Waxing Gibbous28Fri
29Sat7:021.97:061.81:38-0.12:100.26:485:31Full Moon29Sat
30Sun7:502.07:531.82:26-0.12:570.26:495:31Full Moon30Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8723667)

Common Questions About Key Largo, South Sound, FL Tides

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What time does the tide turn (slack tide) in Key Largo, South Sound, FL today?

Slack tide in Key Largo, South Sound, FL is approximately 9:54 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 Key Largo, South Sound, FL?

Key Largo, South Sound, FL is currently in a spring phase. Tonight's moon is 18% 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 near their weekly maximum.

What datum are Key Largo, South Sound, 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 Key Largo, South Sound, FL?

Tide predictions for Key Largo, South Sound, 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 Key Largo, South Sound, FL?

Tide data for Key Largo, South Sound, FL is sourced from NOAA Station #8723667. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8723667.

What is the moon phase in Key Largo, South Sound, FL tonight?

Tonight the moon over Key Largo, South Sound, FL is Waxing Crescent (18% illuminated). This places Key Largo, South Sound, FL in a spring tide cycle, so tidal ranges are near their weekly maximum 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