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 5h 34m 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 - Jun 1962

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri8:401.79:211.93:37-0.13:57-0.46:318:07New Moon1Fri
2Sat9:291.710:081.94:27-0.14:45-0.46:318:07New Moon2Sat
3Sun10:171.710:551.85:16-0.15:33-0.36:318:08New Moon3Sun
4Mon11:031.611:401.76:040.06:20-0.26:318:08Waxing Crescent4Mon
5Tue11:481.66:510.07:07-0.16:318:09Waxing Crescent5Tue
6Wed12:241.712:341.57:390.17:550.06:308:09Waxing Crescent6Wed
7Thu1:081.61:201.48:290.18:450.16:308:09Waxing Crescent7Thu
8Fri1:521.52:091.39:200.29:370.26:308:10First Quarter8Fri
9Sat2:371.43:001.310:130.210:310.26:308:10First Quarter9Sat
10Sun3:251.43:551.311:060.211:260.36:308:11First Quarter10Sun
11Mon4:141.34:511.311:580.26:308:11First Quarter11Mon
12Tue5:051.35:471.312:200.312:460.16:308:11Waxing Gibbous12Tue
13Wed5:571.36:401.41:100.31:320.16:318:12Waxing Gibbous13Wed
14Thu6:471.47:301.51:570.22:150.06:318:12Waxing Gibbous14Thu
15Fri7:351.48:171.62:420.22:57-0.16:318:12Waxing Gibbous15Fri
16Sat8:221.59:031.63:250.13:38-0.16:318:13Full Moon16Sat
17Sun9:081.59:481.74:080.14:21-0.26:318:13Full Moon17Sun
18Mon9:541.510:341.74:510.15:04-0.26:318:13Full Moon18Mon
19Tue10:401.611:191.75:350.05:49-0.36:318:13Full Moon19Tue
20Wed11:281.66:210.06:37-0.26:328:14Waning Gibbous20Wed
21Thu12:061.712:181.67:100.07:28-0.26:328:14Waning Gibbous21Thu
22Fri12:541.71:121.68:030.08:24-0.16:328:14Waning Gibbous22Fri
23Sat1:451.72:091.69:000.09:23-0.16:328:14Third Quarter23Sat
24Sun2:381.63:101.610:00-0.110:260.06:328:14Third Quarter24Sun
25Mon3:341.64:141.611:02-0.111:310.06:338:15Third Quarter25Mon
26Tue4:331.65:191.612:02-0.26:338:15Third Quarter26Tue
27Wed5:331.66:221.612:330.01:01-0.26:338:15Waning Crescent27Wed
28Thu6:321.67:201.71:320.01:56-0.36:348:15Waning Crescent28Thu
29Fri7:291.68:141.72:270.02:49-0.36:348:15Waning Crescent29Fri
30Sat8:211.69:041.73:200.03:39-0.36:348:15New 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 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