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

TIDE TIMES for Thursday, July 23, 2026
The tide is currently falling in Key Largo, South Sound, FL.
Next low tide (tomorrow) : in 5h 50m at 12:48 am (0.4 ft)
Next high tide (tomorrow) : 5:26 am (1.3 ft)
Sunset today : 8:11 pm
Sunrise tomorrow : 6:44 am
Moon phase : Waxing Gibbous (71% illuminated)
Tide Station Location : Station #8723667
Common Questions About Tides

Key Largo, South Sound, FL Tides - Oct 1986

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed7:481.98:131.92:460.43:050.37:137:08Waning Crescent1Wed
2Thu8:352.08:532.03:260.33:470.37:147:07New Moon2Thu
3Fri9:192.19:342.04:050.24:280.37:147:06New Moon3Fri
4Sat10:042.110:152.04:450.15:110.37:147:05New Moon4Sat
5Sun10:492.210:572.05:270.05:550.37:157:04Waxing Crescent5Sun
6Mon11:372.211:432.06:110.06:410.37:157:03Waxing Crescent6Mon
7Tue12:282.17:000.17:320.47:167:02Waxing Crescent7Tue
8Wed12:331.91:232.07:540.18:290.57:167:01Waxing Crescent8Wed
9Thu1:291.92:241.98:550.29:340.67:177:00First Quarter9Thu
10Fri2:331.83:311.910:040.310:470.67:176:59First Quarter10Fri
11Sat3:451.84:401.911:180.411:590.67:186:58First Quarter11Sat
12Sun4:581.85:451.912:270.47:186:57Waxing Gibbous12Sun
13Mon6:061.96:421.91:030.51:290.37:186:56Waxing Gibbous13Mon
14Tue7:062.07:322.01:580.42:230.37:196:55Waxing Gibbous14Tue
15Wed7:582.08:162.02:470.33:110.37:196:55Waxing Gibbous15Wed
16Thu8:442.18:572.03:310.23:560.37:206:54Full Moon16Thu
17Fri9:262.19:352.04:120.24:370.37:206:53Full Moon17Fri
18Sat10:052.110:111.94:510.25:160.47:216:52Full Moon18Sat
19Sun10:432.010:471.95:290.25:550.47:216:51Full Moon19Sun
20Mon11:212.011:221.86:060.26:320.57:226:50Waning Gibbous20Mon
21Tue11:591.911:591.76:430.37:100.67:226:49Waning Gibbous21Tue
22Wed12:391.87:220.47:500.77:236:48Waning Gibbous22Wed
23Thu12:391.71:241.78:040.58:360.77:246:48Waning Gibbous23Thu
24Fri1:251.62:141.78:520.69:310.87:246:47Third Quarter24Fri
25Sat2:181.63:091.69:500.610:360.87:256:46Third Quarter25Sat
26Sun2:191.53:081.69:550.610:390.76:255:45Third Quarter26Sun
27Mon3:251.64:051.710:580.611:340.66:265:44Third Quarter27Mon
28Tue4:281.64:581.711:540.56:265:44Waning Crescent28Tue
29Wed5:261.85:461.812:230.512:440.56:275:43Waning Crescent29Wed
30Thu6:181.96:321.91:070.31:310.46:285:42Waning Crescent30Thu
31Fri7:062.07:172.01:500.22:170.36:285:42New Moon31Fri
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 3:07 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 71% 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 Waxing Gibbous (71% 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