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

TIDE TIMES for Sunday, August 16, 2026
The tide is currently rising in Key Largo, South Sound, FL.
Next low tide : 7:43 pm (0.1 ft)
Next high tide : in 4h 06m at 12:28 pm (1.8 ft)
Sunset today : 7:55 pm
Sunrise tomorrow : 6:56 am
Moon phase : Waxing Crescent (18% illuminated)
Tide Station Location : Station #8723667
Common Questions About Tides

Key Largo, South Sound, FL Tides - Oct 1952

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed6:422.17:052.11:290.21:570.26:136:08Waxing Gibbous1Wed
2Thu7:352.27:532.12:200.12:470.16:146:07Full Moon2Thu
3Fri8:252.38:382.23:080.03:360.16:146:06Full Moon3Fri
4Sat9:132.39:232.13:54-0.14:230.26:156:05Full Moon4Sat
5Sun9:592.210:082.14:410.05:090.36:156:04Waning Gibbous5Sun
6Mon10:462.110:522.05:270.05:560.46:156:03Waning Gibbous6Mon
7Tue11:332.011:391.96:150.26:450.56:166:02Waning Gibbous7Tue
8Wed12:221.97:050.37:370.66:166:01Waning Gibbous8Wed
9Thu12:281.81:151.88:010.48:360.76:176:00Third Quarter9Thu
10Fri1:221.72:121.79:020.59:400.76:175:59Third Quarter10Fri
11Sat2:221.63:121.610:060.610:440.76:185:58Third Quarter11Sat
12Sun3:261.64:101.611:080.611:420.76:185:57Third Quarter12Sun
13Mon4:281.65:011.712:020.66:195:56Waning Crescent13Mon
14Tue5:231.75:461.712:300.612:500.66:195:55Waning Crescent14Tue
15Wed6:111.86:281.81:130.51:330.56:205:54Waning Crescent15Wed
16Thu6:551.97:071.81:510.42:120.56:205:53Waning Crescent16Thu
17Fri7:361.97:451.92:260.32:490.46:215:52New Moon17Fri
18Sat8:152.08:221.93:010.33:250.46:215:52New Moon18Sat
19Sun8:552.09:001.93:350.24:010.46:225:51New Moon19Sun
20Mon9:362.09:391.94:120.24:390.46:225:50New Moon20Mon
21Tue10:192.010:201.84:500.25:190.56:235:49Waxing Crescent21Tue
22Wed11:052.011:051.85:330.26:030.56:235:48Waxing Crescent22Wed
23Thu11:551.911:581.86:210.26:540.66:245:47Waxing Crescent23Thu
24Fri12:511.97:170.37:550.66:245:47First Quarter24Fri
25Sat12:581.71:511.88:210.49:040.66:255:46First Quarter25Sat
26Sun2:071.72:541.89:330.410:140.56:255:45First Quarter26Sun
27Mon3:191.83:561.910:430.411:190.46:265:44First Quarter27Mon
28Tue4:281.94:551.911:480.46:275:43Waxing Gibbous28Tue
29Wed5:302.05:492.012:170.312:460.36:275:43Waxing Gibbous29Wed
30Thu6:272.16:402.01:090.11:390.36:285:42Waxing Gibbous30Thu
31Fri7:182.27:282.11:580.02:280.26:285:41Full 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 4:05 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 18% 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 (18% 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