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

TIDE TIMES for Saturday, August 15, 2026
The tide is currently falling in Key Largo, South Sound, FL.
Next low tide : in 3h 08m at 6:34 am (-0.1 ft)
Next high tide : 11:42 am (1.9 ft)
Sunset today : 7:56 pm
Sunrise tomorrow : 6:55 am
Moon phase : Waxing Crescent (11% illuminated)
Tide Station Location : Station #8723667
Common Questions About Tides

Key Largo, South Sound, FL Tides - Oct 1954

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri11:201.811:231.76:030.46:270.66:136:09Waxing Crescent1Fri
2Sat12:021.86:410.47:070.76:146:08Waxing Crescent2Sat
3Sun12:041.712:501.77:240.57:540.76:146:07First Quarter3Sun
4Mon12:521.61:431.78:160.58:530.76:146:06First Quarter4Mon
5Tue1:491.62:421.79:180.610:000.76:156:05First Quarter5Tue
6Wed2:541.63:421.710:250.511:030.66:156:04First Quarter6Wed
7Thu4:011.74:401.811:280.56:166:03Waxing Gibbous7Thu
8Fri5:041.85:331.912:000.512:240.46:166:02Waxing Gibbous8Fri
9Sat6:011.96:232.012:510.41:170.36:176:01Waxing Gibbous9Sat
10Sun6:542.17:112.11:390.22:060.26:176:00Full Moon10Sun
11Mon7:452.27:582.12:260.12:550.26:175:59Full Moon11Mon
12Tue8:352.38:462.23:13-0.13:430.26:185:58Full Moon12Tue
13Wed9:252.39:352.24:02-0.14:320.26:185:57Full Moon13Wed
14Thu10:162.310:252.14:52-0.15:230.26:195:56Waning Gibbous14Thu
15Fri11:092.211:192.05:440.06:160.36:195:55Waning Gibbous15Fri
16Sat12:042.16:400.17:140.46:205:54Waning Gibbous16Sat
17Sun12:162.01:032.07:410.28:190.56:205:53Third Quarter17Sun
18Mon1:191.92:051.98:480.39:270.56:215:52Third Quarter18Mon
19Tue2:261.83:091.99:570.410:350.56:215:51Third Quarter19Tue
20Wed3:341.84:111.811:030.411:360.56:225:50Third Quarter20Wed
21Thu4:401.85:071.812:020.46:225:49Waning Crescent21Thu
22Fri5:371.95:561.912:290.412:540.46:235:49Waning Crescent22Fri
23Sat6:261.96:391.91:160.31:400.46:235:48Waning Crescent23Sat
24Sun7:092.07:171.91:570.32:220.46:245:47New Moon24Sun
25Mon7:482.07:541.92:360.33:000.46:255:46New Moon25Mon
26Tue8:252.08:301.93:120.23:370.46:255:45New Moon26Tue
27Wed9:022.09:051.83:480.24:130.56:265:45New Moon27Wed
28Thu9:381.99:411.84:220.34:470.56:265:44New Moon28Thu
29Fri10:161.910:181.84:570.35:220.56:275:43Waxing Crescent29Fri
30Sat10:561.810:571.75:320.35:590.66:275:42Waxing Crescent30Sat
31Sun11:371.811:391.76:100.46:390.66:285:42Waxing Crescent31Sun
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 9:08 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 11% 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 Waxing Crescent (11% 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