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

TIDE TIMES for Friday, July 31, 2026
The tide is currently rising in Key Largo, South Sound, FL.
Next low tide (tomorrow) : 6:27 am (0.1 ft)
Next high tide : in 1h 10m at 11:20 pm (1.6 ft)
Sunset today : 8:07 pm
Sunrise tomorrow : 6:48 am
Moon phase : Waning Gibbous (96% illuminated)
Tide Station Location : Station #8723667
Common Questions About Tides

Key Largo, South Sound, FL Tides - Aug 1975

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri3:321.44:291.411:110.211:420.46:488:07Third Quarter1Fri
2Sat4:311.45:311.412:090.16:498:06Waning Crescent2Sat
3Sun5:341.46:321.512:420.41:070.16:498:05Waning Crescent3Sun
4Mon6:371.57:281.61:400.32:030.06:508:05Waning Crescent4Mon
5Tue7:361.68:201.82:340.22:56-0.16:508:04Waning Crescent5Tue
6Wed8:321.79:091.93:250.13:47-0.26:518:03New Moon6Wed
7Thu9:251.89:571.94:15-0.14:37-0.26:518:03New Moon7Thu
8Fri10:171.910:442.05:04-0.25:27-0.26:528:02New Moon8Fri
9Sat11:082.011:312.05:54-0.26:18-0.26:528:01Waxing Crescent9Sat
10Sun12:002.06:44-0.27:10-0.16:538:01Waxing Crescent10Sun
11Mon12:191.912:531.97:37-0.28:040.06:538:00Waxing Crescent11Mon
12Tue1:101.91:491.88:32-0.29:010.16:537:59First Quarter12Tue
13Wed2:031.82:481.89:31-0.110:020.26:547:58First Quarter13Wed
14Thu3:001.73:501.710:330.011:070.36:547:57First Quarter14Thu
15Fri4:021.64:561.611:370.06:557:57First Quarter15Fri
16Sat5:071.66:001.612:110.312:390.16:557:56Waxing Gibbous16Sat
17Sun6:101.66:581.61:120.31:370.16:567:55Waxing Gibbous17Sun
18Mon7:081.67:481.72:070.32:290.16:567:54Waxing Gibbous18Mon
19Tue7:581.68:321.72:560.33:160.16:567:53Waxing Gibbous19Tue
20Wed8:431.79:111.73:410.23:590.16:577:52Full Moon20Wed
21Thu9:241.79:471.84:220.24:390.16:577:51Full Moon21Thu
22Fri10:031.710:221.85:000.25:160.16:587:50Full Moon22Fri
23Sat10:401.710:561.75:360.25:520.26:587:50Full Moon23Sat
24Sun11:171.711:301.76:110.26:270.26:597:49Waning Gibbous24Sun
25Mon11:541.76:450.27:020.36:597:48Waning Gibbous25Mon
26Tue12:051.712:331.77:200.27:380.46:597:47Waning Gibbous26Tue
27Wed12:411.61:151.67:570.28:170.47:007:46Waning Gibbous27Wed
28Thu1:201.62:011.68:390.39:030.57:007:45Third Quarter28Thu
29Fri2:041.52:541.59:290.39:590.57:017:44Third Quarter29Fri
30Sat2:571.53:541.610:290.311:040.57:017:43Third Quarter30Sat
31Sun4:001.54:591.611:350.37:017:42Third Quarter31Sun
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 2:53 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 96% 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 Gibbous (96% 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