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

TIDE TIMES for Thursday, August 13, 2026
The tide is currently falling in Key Largo, South Sound, FL.
Next low tide : in 46m at 4:59 am (-0.1 ft)
Next high tide : 10:06 am (1.9 ft)
Sunset today : 7:58 pm
Sunrise tomorrow : 6:54 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #8723667
Common Questions About Tides

Key Largo, South Sound, FL Tides - Jan 1956

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun11:211.911:461.76:07-0.36:38-0.27:065:43Waning Gibbous1Sun
2Mon12:111.87:01-0.27:33-0.27:075:43Waning Gibbous2Mon
3Tue12:401.61:011.67:57-0.18:30-0.17:075:44Third Quarter3Tue
4Wed1:371.51:531.58:560.19:28-0.17:075:45Third Quarter4Wed
5Thu2:361.52:471.49:560.210:260.07:075:45Third Quarter5Thu
6Fri3:371.43:441.310:550.211:220.07:085:46Third Quarter6Fri
7Sat4:371.44:411.311:530.27:085:47Waning Crescent7Sat
8Sun5:341.45:351.312:160.012:460.27:085:48Waning Crescent8Sun
9Mon6:251.46:251.31:060.01:340.27:085:48Waning Crescent9Mon
10Tue7:091.47:101.31:51-0.12:190.27:085:49Waning Crescent10Tue
11Wed7:501.57:531.42:34-0.13:000.17:085:50New Moon11Wed
12Thu8:291.58:341.43:14-0.13:400.17:085:50New Moon12Thu
13Fri9:061.59:131.43:51-0.14:170.07:085:51New Moon13Fri
14Sat9:431.59:531.44:27-0.14:520.07:085:52New Moon14Sat
15Sun10:191.510:321.45:02-0.15:270.07:085:53Waxing Crescent15Sun
16Mon10:541.511:121.45:37-0.16:020.07:085:53Waxing Crescent16Mon
17Tue11:311.411:551.46:150.06:400.07:085:54Waxing Crescent17Tue
18Wed12:091.46:560.07:23-0.17:085:55Waxing Crescent18Wed
19Thu12:411.412:501.47:430.18:12-0.17:085:56First Quarter19Thu
20Fri1:331.31:391.38:380.19:10-0.17:085:56First Quarter20Fri
21Sat2:341.32:371.39:410.210:14-0.17:085:57First Quarter21Sat
22Sun3:401.43:441.310:490.111:20-0.27:075:58First Quarter22Sun
23Mon4:481.44:541.411:560.17:075:59Waxing Gibbous23Mon
24Tue5:531.56:011.512:24-0.312:590.07:075:59Waxing Gibbous24Tue
25Wed6:521.67:021.61:24-0.41:57-0.17:076:00Waxing Gibbous25Wed
26Thu7:451.77:591.72:21-0.52:51-0.27:066:01Full Moon26Thu
27Fri8:361.88:521.83:15-0.53:44-0.37:066:02Full Moon27Fri
28Sat9:241.89:431.84:06-0.54:34-0.47:066:02Full Moon28Sat
29Sun10:101.810:331.74:57-0.55:24-0.47:056:03Waning Gibbous29Sun
30Mon10:561.711:231.75:47-0.46:14-0.47:056:04Waning Gibbous30Mon
31Tue11:411.66:36-0.37:04-0.37:056:05Waning Gibbous31Tue
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 7:32 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 1% 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 New Moon (1% 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