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

TIDE TIMES for Thursday, July 9, 2026
The tide is currently falling in Key Largo, South Sound, FL.
Next low tide (tomorrow) : in 1h 22m at 12:28 am (0.2 ft)
Next high tide (tomorrow) : 5:16 am (1.4 ft)
Sunset today : 8:15 pm
Sunrise tomorrow : 6:38 am
Moon phase : Waning Crescent (30% illuminated)
Tide Station Location : Station #8723667
Common Questions About Tides

Key Largo, South Sound, FL Tides - Jan 1999

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri8:121.98:221.72:47-0.43:18-0.17:065:43Full Moon1Fri
2Sat9:021.99:121.73:38-0.44:09-0.17:075:44Full Moon2Sat
3Sun9:501.810:021.74:28-0.44:59-0.17:075:44Full Moon3Sun
4Mon10:361.810:501.65:18-0.35:48-0.17:075:45Waning Gibbous4Mon
5Tue11:211.711:381.56:07-0.26:38-0.17:075:46Waning Gibbous5Tue
6Wed12:051.66:56-0.17:280.07:085:46Waning Gibbous6Wed
7Thu12:261.512:501.57:470.08:200.07:085:47Third Quarter7Thu
8Fri1:161.41:351.48:400.19:130.17:085:48Third Quarter8Fri
9Sat2:081.32:231.39:350.210:060.17:085:49Third Quarter9Sat
10Sun3:031.33:131.310:310.210:590.17:085:49Third Quarter10Sun
11Mon4:001.34:061.211:260.311:500.17:085:50Waning Crescent11Mon
12Tue4:561.35:001.212:180.37:085:51Waning Crescent12Tue
13Wed5:491.35:521.312:380.01:060.27:085:51Waning Crescent13Wed
14Thu6:381.46:411.31:230.01:510.27:085:52Waning Crescent14Thu
15Fri7:241.57:271.42:05-0.12:330.17:085:53Waning Crescent15Fri
16Sat8:071.58:121.42:46-0.23:140.17:085:54New Moon16Sat
17Sun8:491.68:551.53:26-0.23:540.07:085:54New Moon17Sun
18Mon9:301.69:391.54:06-0.34:34-0.17:085:55New Moon18Mon
19Tue10:121.610:231.54:47-0.35:15-0.17:085:56Waxing Crescent19Tue
20Wed10:531.611:091.55:30-0.35:58-0.17:085:57Waxing Crescent20Wed
21Thu11:361.611:591.56:16-0.26:45-0.27:075:57Waxing Crescent21Thu
22Fri12:221.57:05-0.27:36-0.27:075:58Waxing Crescent22Fri
23Sat12:521.51:111.58:00-0.18:33-0.27:075:59First Quarter23Sat
24Sun1:511.42:061.49:020.09:35-0.27:076:00First Quarter24Sun
25Mon2:551.43:081.410:070.010:40-0.27:066:00First Quarter25Mon
26Tue4:021.44:131.411:140.011:43-0.37:066:01Waxing Gibbous26Tue
27Wed5:091.55:191.412:180.07:066:02Waxing Gibbous27Wed
28Thu6:111.66:211.512:44-0.31:17-0.17:066:03Waxing Gibbous28Thu
29Fri7:071.67:171.51:41-0.42:13-0.17:056:03Waxing Gibbous29Fri
30Sat7:581.78:091.62:35-0.43:04-0.27:056:04Full Moon30Sat
31Sun8:461.78:581.63:25-0.43:53-0.27:046:05Full Moon31Sun
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 2:52 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 transitional phase. Tonight's moon is 30% 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 Waning Crescent (30% 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