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

TIDE TIMES for Wednesday, July 22, 2026
The tide is currently falling in Key Largo, South Sound, FL.
Next low tide : in 6h 56m at 11:23 am (0.1 ft)
Next high tide : 4:31 pm (1.4 ft)
Sunset today : 8:11 pm
Sunrise tomorrow : 6:44 am
Moon phase : First Quarter (62% illuminated)
Tide Station Location : Station #8723667
Common Questions About Tides

Key Largo, South Sound, FL Tides - Apr 1988

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri8:161.58:411.63:170.13:310.06:126:38Full Moon1Fri
2Sat8:511.59:181.63:520.04:04-0.16:116:38Full Moon2Sat
3Sun10:261.510:561.65:260.15:37-0.17:107:39Full Moon3Sun
4Mon11:011.511:361.66:010.16:11-0.17:097:39Waning Gibbous4Mon
5Tue11:371.56:370.16:49-0.17:087:39Waning Gibbous5Tue
6Wed12:171.612:171.47:170.27:33-0.17:077:40Waning Gibbous6Wed
7Thu1:041.51:021.48:030.28:240.07:067:40Waning Gibbous7Thu
8Fri1:561.51:561.48:580.39:240.07:057:41Third Quarter8Fri
9Sat2:561.43:021.410:040.310:340.07:047:41Third Quarter9Sat
10Sun4:021.44:171.411:170.311:470.07:037:42Third Quarter10Sun
11Mon5:091.55:311.512:260.27:027:42Waning Crescent11Mon
12Tue6:111.66:381.612:550.01:270.07:017:43Waning Crescent12Tue
13Wed7:071.67:381.71:56-0.12:23-0.17:007:43Waning Crescent13Wed
14Thu7:581.78:311.92:51-0.13:14-0.36:597:43Waning Crescent14Thu
15Fri8:461.89:211.93:43-0.14:02-0.36:587:44New Moon15Fri
16Sat9:321.810:091.94:31-0.14:49-0.46:577:44New Moon16Sat
17Sun10:171.810:551.95:18-0.15:35-0.46:567:45New Moon17Sun
18Mon11:011.711:401.86:040.06:21-0.36:557:45Waxing Crescent18Mon
19Tue11:451.66:510.07:08-0.26:557:46Waxing Crescent19Tue
20Wed12:261.712:301.57:380.27:57-0.16:547:46Waxing Crescent20Wed
21Thu1:131.61:171.48:280.38:490.16:537:47Waxing Crescent21Thu
22Fri2:021.42:081.39:230.39:460.26:527:47First Quarter22Fri
23Sat2:561.43:061.310:240.410:480.36:517:48First Quarter23Sat
24Sun3:521.34:091.211:270.411:500.36:507:48First Quarter24Sun
25Mon4:491.35:131.312:260.46:497:49First Quarter25Mon
26Tue5:431.36:111.312:470.31:160.36:497:49Waxing Gibbous26Tue
27Wed6:311.47:021.41:370.32:000.26:487:50Waxing Gibbous27Wed
28Thu7:151.47:481.52:230.22:400.16:477:50Waxing Gibbous28Thu
29Fri7:571.58:301.63:040.23:170.06:467:51Waxing Gibbous29Fri
30Sat8:371.59:121.73:430.23:540.06:467:51Full Moon30Sat
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 1:57 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 Key Largo, South Sound, FL?

Key Largo, South Sound, 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 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 First Quarter (62% illuminated). This places Key Largo, South Sound, 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