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 : in 2h 47m at 11:52 am (-0.1 ft)
Next high tide : 5:17 pm (1.5 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 2000

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat5:061.45:111.412:220.27:065:43Waning Crescent1Sat
2Sun5:581.46:001.412:420.01:110.27:075:43Waning Crescent2Sun
3Mon6:441.56:451.41:270.01:550.27:075:44Waning Crescent3Mon
4Tue7:261.57:271.42:10-0.12:370.27:075:45New Moon4Tue
5Wed8:061.58:081.42:50-0.13:170.17:075:46New Moon5Wed
6Thu8:451.68:481.43:28-0.13:550.17:085:46New Moon6Thu
7Fri9:241.69:281.44:05-0.14:320.17:085:47New Moon7Fri
8Sat10:021.610:081.44:41-0.15:080.17:085:48New Moon8Sat
9Sun10:401.510:481.45:17-0.15:450.17:085:48Waxing Crescent9Sun
10Mon11:181.511:311.45:55-0.16:230.17:085:49Waxing Crescent10Mon
11Tue11:581.56:350.07:060.07:085:50Waxing Crescent11Tue
12Wed12:171.412:401.47:210.07:540.07:085:51Waxing Crescent12Wed
13Thu1:071.31:261.48:140.18:480.07:085:51First Quarter13Thu
14Fri2:051.32:181.49:150.19:48-0.17:085:52First Quarter14Fri
15Sat3:081.43:181.410:200.110:51-0.27:085:53First Quarter15Sat
16Sun4:151.44:221.411:260.111:54-0.27:085:54Waxing Gibbous16Sun
17Mon5:201.55:271.412:290.07:085:54Waxing Gibbous17Mon
18Tue6:221.66:291.512:54-0.31:28-0.17:085:55Waxing Gibbous18Tue
19Wed7:191.77:271.61:51-0.42:24-0.17:085:56Full Moon19Wed
20Thu8:121.88:221.72:46-0.53:17-0.27:085:57Full Moon20Thu
21Fri9:031.89:151.73:39-0.54:10-0.37:075:57Full Moon21Fri
22Sat9:511.810:061.74:31-0.55:01-0.37:075:58Full Moon22Sat
23Sun10:391.810:571.75:22-0.55:52-0.37:075:59Waning Gibbous23Sun
24Mon11:251.711:471.66:13-0.46:43-0.37:076:00Waning Gibbous24Mon
25Tue12:111.67:05-0.27:35-0.27:076:00Waning Gibbous25Tue
26Wed12:381.512:581.57:57-0.18:28-0.17:066:01Third Quarter26Wed
27Thu1:311.41:451.48:520.09:22-0.17:066:02Third Quarter27Thu
28Fri2:261.32:361.39:490.110:180.07:066:03Third Quarter28Fri
29Sat3:231.23:301.210:470.211:130.07:056:03Third Quarter29Sat
30Sun4:221.24:261.211:440.27:056:04Waning Crescent30Sun
31Mon5:191.25:211.212:060.012:370.27:046:05Waning Crescent31Mon
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 2:34 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 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