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

TIDE TIMES for Monday, August 10, 2026
The tide is currently rising in Key Largo, South Sound, FL.
Next low tide : 2:43 pm (-0.2 ft)
Next high tide : in 2h 58m at 7:19 am (1.7 ft)
Sunset today : 8:00 pm
Sunrise tomorrow : 6:53 am
Moon phase : Waning Crescent (6% illuminated)
Tide Station Location : Station #8723667
Common Questions About Tides

Key Largo, South Sound, FL Tides - Apr 1961

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat9:031.69:271.73:550.04:11-0.16:136:38Full Moon1Sat
2Sun9:411.610:081.74:330.04:48-0.26:126:38Full Moon2Sun
3Mon10:191.610:501.75:110.05:26-0.26:116:38Waning Gibbous3Mon
4Tue11:001.611:351.75:520.06:09-0.26:096:39Waning Gibbous4Tue
5Wed11:431.56:370.16:57-0.16:086:39Waning Gibbous5Wed
6Thu12:241.612:331.57:280.17:52-0.16:076:40Third Quarter6Thu
7Fri1:191.61:311.58:270.28:55-0.16:066:40Third Quarter7Fri
8Sat2:211.52:371.59:340.210:040.06:056:41Third Quarter8Sat
9Sun3:271.53:481.510:430.111:130.06:046:41Third Quarter9Sun
10Mon4:331.64:581.611:490.16:036:41Waning Crescent10Mon
11Tue5:351.66:021.712:18-0.112:49-0.16:036:42Waning Crescent11Tue
12Wed6:311.76:591.81:17-0.11:44-0.26:026:42Waning Crescent12Wed
13Thu7:221.87:511.92:11-0.22:35-0.36:016:43New Moon13Thu
14Fri8:101.88:391.93:01-0.23:23-0.36:006:43New Moon14Fri
15Sat8:551.89:251.93:49-0.24:09-0.35:596:44New Moon15Sat
16Sun9:381.810:101.94:36-0.14:54-0.35:586:44New Moon16Sun
17Mon10:211.710:531.85:21-0.15:38-0.25:576:45Waxing Crescent17Mon
18Tue11:021.611:361.76:060.06:23-0.15:566:45Waxing Crescent18Tue
19Wed11:451.56:510.17:090.05:556:46Waxing Crescent19Wed
20Thu12:201.612:291.47:390.27:580.15:546:46Waxing Crescent20Thu
21Fri1:061.51:161.38:310.38:510.25:536:46First Quarter21Fri
22Sat1:561.42:101.39:270.39:490.35:526:47First Quarter22Sat
23Sun2:501.33:091.310:260.410:480.35:526:47First Quarter23Sun
24Mon3:471.34:111.311:230.311:450.35:516:48First Quarter24Mon
25Tue4:431.45:091.312:140.35:506:48Waxing Gibbous25Tue
26Wed5:341.46:021.412:350.21:000.25:496:49Waxing Gibbous26Wed
27Thu6:221.56:511.51:220.21:420.15:486:49Waxing Gibbous27Thu
28Fri7:061.57:361.62:050.12:220.05:476:50Waxing Gibbous28Fri
29Sat7:491.68:201.72:460.13:01-0.15:476:50Full Moon29Sat
30Sun9:311.610:031.84:260.04:41-0.26:467:51Full Moon30Sun
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 11:01 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 6% 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 (6% 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