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

TIDE TIMES for Saturday, August 15, 2026
The tide is currently falling in Key Largo, South Sound, FL.
Next low tide : in 6h 02m at 6:34 am (-0.1 ft)
Next high tide : 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 - Jan 1955

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat1:381.51:491.58:460.19:19-0.17:065:43First Quarter1Sat
2Sun2:401.52:471.49:500.210:22-0.17:075:44First Quarter2Sun
3Mon3:461.53:511.410:570.211:26-0.27:075:44Waxing Gibbous3Mon
4Tue4:531.54:581.512:020.17:075:45Waxing Gibbous4Tue
5Wed5:561.66:021.512:28-0.31:030.17:075:46Waxing Gibbous5Wed
6Thu6:551.77:021.61:27-0.32:000.07:085:46Waxing Gibbous6Thu
7Fri7:491.87:581.72:23-0.42:54-0.17:085:47Full Moon7Fri
8Sat8:391.88:511.73:16-0.43:46-0.27:085:48Full Moon8Sat
9Sun9:271.89:411.74:07-0.44:36-0.27:085:48Full Moon9Sun
10Mon10:121.810:301.74:56-0.45:25-0.27:085:49Waning Gibbous10Mon
11Tue10:561.711:171.65:45-0.36:14-0.27:085:50Waning Gibbous11Tue
12Wed11:391.66:33-0.27:02-0.27:085:51Waning Gibbous12Wed
13Thu12:051.512:211.57:210.07:50-0.17:085:51Waning Gibbous13Thu
14Fri12:521.41:041.48:110.18:400.07:085:52Third Quarter14Fri
15Sat1:421.31:491.39:040.29:330.07:085:53Third Quarter15Sat
16Sun2:351.32:381.29:590.310:270.07:085:54Third Quarter16Sun
17Mon3:311.23:321.210:560.311:210.17:085:54Third Quarter17Mon
18Tue4:301.24:291.211:520.37:085:55Waning Crescent18Tue
19Wed5:281.25:271.212:140.012:450.37:085:56Waning Crescent19Wed
20Thu6:201.36:201.21:030.01:330.27:085:57Waning Crescent20Thu
21Fri7:061.47:091.31:49-0.12:170.27:085:57Waning Crescent21Fri
22Sat7:501.47:541.42:31-0.12:590.17:075:58New Moon22Sat
23Sun8:311.58:381.43:11-0.23:380.07:075:59New Moon23Sun
24Mon9:101.69:211.53:50-0.24:16-0.17:076:00New Moon24Mon
25Tue9:491.610:041.54:29-0.24:54-0.17:076:00New Moon25Tue
26Wed10:271.610:481.55:10-0.25:34-0.27:066:01Waxing Crescent26Wed
27Thu11:071.511:341.55:52-0.26:17-0.27:066:02Waxing Crescent27Thu
28Fri11:481.56:37-0.17:04-0.27:066:03Waxing Crescent28Fri
29Sat12:231.512:341.47:28-0.17:56-0.27:056:03First Quarter29Sat
30Sun1:181.41:251.48:240.08:55-0.27:056:04First Quarter30Sun
31Mon2:191.42:251.39:280.110:01-0.27:056:05First Quarter31Mon
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 9:08 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 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