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

TIDE TIMES for Saturday, August 15, 2026
The tide is currently rising in Key Largo, South Sound, FL.
Next low tide : 6:56 pm (0.0 ft)
Next high tide : in 27m at 11:42 am (1.9 ft)
Sunset today : 7:56 pm
Sunrise tomorrow : 6:55 am
Moon phase : Waxing Crescent (11% illuminated)
Tide Station Location : Station #8723667
Common Questions About Tides

Key Largo, South Sound, FL Tides - Feb 1954

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon7:091.47:141.41:44-0.22:150.07:046:06Waning Crescent1Mon
2Tue7:561.58:051.52:32-0.33:01-0.17:046:06New Moon2Tue
3Wed8:401.68:541.63:19-0.33:46-0.27:036:07New Moon3Wed
4Thu9:231.79:421.74:05-0.44:30-0.37:036:08New Moon4Thu
5Fri10:061.710:301.74:51-0.45:16-0.47:026:08Waxing Crescent5Fri
6Sat10:501.711:201.75:39-0.36:04-0.47:026:09Waxing Crescent6Sat
7Sun11:361.66:28-0.36:54-0.47:016:10Waxing Crescent7Sun
8Mon12:131.612:241.57:21-0.27:49-0.47:006:11First Quarter8Mon
9Tue1:091.51:181.58:190.08:49-0.37:006:11First Quarter9Tue
10Wed2:101.42:181.49:220.19:54-0.26:596:12First Quarter10Wed
11Thu3:171.43:251.310:300.111:02-0.26:596:13First Quarter11Thu
12Fri4:271.44:361.311:380.16:586:13Waxing Gibbous12Fri
13Sat5:341.45:431.312:07-0.212:420.16:576:14Waxing Gibbous13Sat
14Sun6:321.46:411.41:07-0.21:390.06:566:14Waxing Gibbous14Sun
15Mon7:211.57:321.42:01-0.22:290.06:566:15Waxing Gibbous15Mon
16Tue8:041.58:171.52:48-0.23:14-0.16:556:16Full Moon16Tue
17Wed8:431.58:581.53:32-0.23:55-0.16:546:16Full Moon17Wed
18Thu9:191.59:361.54:12-0.24:33-0.26:546:17Full Moon18Thu
19Fri9:521.510:131.54:50-0.25:09-0.26:536:18Full Moon19Fri
20Sat10:251.510:491.55:26-0.15:44-0.26:526:18Waning Gibbous20Sat
21Sun10:581.411:251.46:010.06:19-0.16:516:19Waning Gibbous21Sun
22Mon11:311.36:360.06:54-0.16:506:19Waning Gibbous22Mon
23Tue12:041.312:071.37:120.17:320.06:496:20Waning Gibbous23Tue
24Wed12:461.312:461.27:530.28:160.06:496:20Third Quarter24Wed
25Thu1:341.21:331.28:410.39:100.16:486:21Third Quarter25Thu
26Fri2:321.22:301.19:420.310:130.16:476:22Third Quarter26Fri
27Sat3:371.23:391.110:500.311:190.06:466:22Third Quarter27Sat
28Sun4:441.24:501.211:560.36:456:23Waning Crescent28Sun
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 3:19 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 11% 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 (11% 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