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

TIDE TIMES for Sunday, August 9, 2026
The tide is currently falling in Key Largo, South Sound, FL.
Next low tide : in 3h 49m at 1:43 pm (-0.1 ft)
Next high tide : 7:13 pm (1.7 ft)
Sunset today : 8:01 pm
Sunrise tomorrow : 6:52 am
Moon phase : Waning Crescent (13% illuminated)
Tide Station Location : Station #8723667
Common Questions About Tides

Key Largo, South Sound, FL Tides - May 1962

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue7:201.77:541.82:10-0.12:36-0.26:457:51Waning Crescent1Tue
2Wed8:121.88:471.93:05-0.13:27-0.36:457:52New Moon2Wed
3Thu9:031.89:382.03:57-0.24:17-0.46:447:52New Moon3Thu
4Fri9:511.810:272.04:47-0.25:06-0.46:437:53New Moon4Fri
5Sat10:381.811:151.95:36-0.15:54-0.46:427:53New Moon5Sat
6Sun11:251.86:25-0.16:43-0.36:427:54Waxing Crescent6Sun
7Mon12:021.812:121.77:140.07:33-0.26:417:54Waxing Crescent7Mon
8Tue12:491.71:001.68:050.18:240.06:417:55Waxing Crescent8Tue
9Wed1:381.61:501.58:590.29:190.16:407:55First Quarter9Wed
10Thu2:281.52:441.49:560.310:170.26:397:56First Quarter10Thu
11Fri3:211.43:411.310:550.311:160.26:397:56First Quarter11Fri
12Sat4:151.44:411.311:520.36:387:57First Quarter12Sat
13Sun5:091.45:391.312:140.312:450.26:387:57Waxing Gibbous13Sun
14Mon6:001.46:331.41:070.31:330.26:377:58Waxing Gibbous14Mon
15Tue6:481.47:211.51:550.22:160.16:377:58Waxing Gibbous15Tue
16Wed7:331.48:061.52:390.22:560.06:367:59Waxing Gibbous16Wed
17Thu8:151.58:491.63:200.23:340.06:367:59Waxing Gibbous17Thu
18Fri8:561.59:301.73:590.14:11-0.16:358:00Full Moon18Fri
19Sat9:371.510:121.74:380.14:48-0.16:358:00Full Moon19Sat
20Sun10:181.510:541.75:160.15:27-0.26:348:01Full Moon20Sun
21Mon11:001.511:371.75:560.16:07-0.26:348:01Waning Gibbous21Mon
22Tue11:431.56:380.16:52-0.16:348:02Waning Gibbous22Tue
23Wed12:231.712:301.57:240.17:40-0.16:338:02Waning Gibbous23Wed
24Thu1:111.61:221.58:160.18:35-0.16:338:03Waning Gibbous24Thu
25Fri2:021.62:201.59:140.19:360.06:338:03Third Quarter25Fri
26Sat2:581.63:231.510:160.110:420.06:328:04Third Quarter26Sat
27Sun3:571.64:301.511:200.011:480.06:328:04Third Quarter27Sun
28Mon4:571.65:361.612:22-0.16:328:05Waning Crescent28Mon
29Tue5:571.66:391.712:510.01:20-0.26:328:05Waning Crescent29Tue
30Wed6:551.77:371.81:500.02:15-0.36:318:06Waning Crescent30Wed
31Thu7:491.78:301.82:45-0.13:07-0.36:318:06Waning Crescent31Thu
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 4:28 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 spring phase. Tonight's moon is 13% 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 Waning Crescent (13% 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