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

TIDE TIMES for Tuesday, August 11, 2026
The tide is currently rising in Key Largo, South Sound, FL.
Next low tide : 3:39 pm (-0.2 ft)
Next high tide : in 3h 08m at 8:19 am (1.8 ft)
Sunset today : 7:59 pm
Sunrise tomorrow : 6:53 am
Moon phase : New Moon (2% illuminated)
Tide Station Location : Station #8723667
Common Questions About Tides

Key Largo, South Sound, FL Tides - Jul 1959

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed6:061.36:531.41:210.31:410.06:348:15Waning Crescent1Wed
2Thu6:561.37:401.42:090.22:260.06:358:15Waning Crescent2Thu
3Fri7:431.48:251.52:540.23:080.06:358:15Waning Crescent3Fri
4Sat8:291.49:071.63:360.23:49-0.16:368:15New Moon4Sat
5Sun9:121.59:481.64:160.14:28-0.16:368:15New Moon5Sun
6Mon9:551.510:291.64:550.15:06-0.16:368:15New Moon6Mon
7Tue10:371.511:091.65:340.15:45-0.16:378:15New Moon7Tue
8Wed11:201.511:491.66:120.16:24-0.16:378:15Waxing Crescent8Wed
9Thu12:031.56:530.07:07-0.16:388:15Waxing Crescent9Thu
10Fri12:301.612:491.57:360.07:530.06:388:15Waxing Crescent10Fri
11Sat1:121.61:391.58:240.08:440.06:388:15Waxing Crescent11Sat
12Sun1:581.62:341.59:170.09:420.16:398:14First Quarter12Sun
13Mon2:491.53:331.510:15-0.110:440.16:398:14First Quarter13Mon
14Tue3:461.54:381.611:17-0.111:490.16:408:14First Quarter14Tue
15Wed4:481.55:431.612:20-0.26:408:14Waxing Gibbous15Wed
16Thu5:531.66:471.712:530.11:21-0.26:418:14Waxing Gibbous16Thu
17Fri6:561.67:461.81:540.02:19-0.36:418:13Waxing Gibbous17Fri
18Sat7:561.78:411.82:510.03:15-0.36:428:13Full Moon18Sat
19Sun8:521.89:321.93:46-0.14:08-0.46:428:13Full Moon19Sun
20Mon9:451.810:201.94:38-0.15:00-0.36:438:12Full Moon20Mon
21Tue10:361.811:061.95:29-0.15:50-0.36:438:12Full Moon21Tue
22Wed11:241.811:511.86:18-0.16:39-0.26:438:12Waning Gibbous22Wed
23Thu12:121.77:07-0.17:27-0.16:448:11Waning Gibbous23Thu
24Fri12:351.712:591.67:56-0.18:160.06:448:11Waning Gibbous24Fri
25Sat1:181.61:461.58:450.09:060.16:458:10Third Quarter25Sat
26Sun2:011.52:351.59:350.19:570.26:458:10Third Quarter26Sun
27Mon2:461.43:261.410:270.110:520.36:468:09Third Quarter27Mon
28Tue3:341.44:201.411:200.211:470.46:468:09Third Quarter28Tue
29Wed4:261.35:171.412:130.26:478:08Third Quarter29Wed
30Thu5:221.36:121.412:410.41:040.26:478:08Waning Crescent30Thu
31Fri6:171.47:051.51:320.41:520.16:488:07Waning Crescent31Fri
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 11:59 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 2% 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 New Moon (2% 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