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

TIDE TIMES for Wednesday, August 12, 2026
The tide is currently falling in Key Largo, South Sound, FL.
Next low tide : in 2h 39m at 4:08 am (0.0 ft)
Next high tide : 9:15 am (1.9 ft)
Sunset today : 7:59 pm
Sunrise tomorrow : 6:54 am
Moon phase : New Moon (0% illuminated)
Tide Station Location : Station #8723667
Common Questions About Tides

Key Largo, South Sound, FL Tides - Jan 1958

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed5:111.45:151.312:270.37:075:43Waxing Gibbous1Wed
2Thu6:051.56:091.412:460.01:150.27:075:44Waxing Gibbous2Thu
3Fri6:551.57:001.51:32-0.12:020.17:075:44Waxing Gibbous3Fri
4Sat7:431.67:491.52:18-0.22:470.07:075:45Full Moon4Sat
5Sun8:291.78:381.63:04-0.33:330.07:075:46Full Moon5Sun
6Mon9:151.89:261.73:49-0.34:18-0.17:085:46Full Moon6Mon
7Tue10:001.810:151.74:36-0.45:05-0.27:085:47Waning Gibbous7Tue
8Wed10:461.811:061.75:24-0.35:54-0.27:085:48Waning Gibbous8Wed
9Thu11:331.711:591.66:15-0.36:46-0.27:085:49Waning Gibbous9Thu
10Fri12:231.77:09-0.27:41-0.27:085:49Waning Gibbous10Fri
11Sat12:561.61:161.68:07-0.18:41-0.27:085:50Third Quarter11Sat
12Sun1:561.52:131.59:090.09:43-0.27:085:51Third Quarter12Sun
13Mon3:001.53:141.510:150.010:47-0.27:085:52Third Quarter13Mon
14Tue4:071.54:181.411:200.111:48-0.27:085:52Waning Crescent14Tue
15Wed5:111.55:211.412:210.17:085:53Waning Crescent15Wed
16Thu6:111.56:201.512:47-0.21:180.07:085:54Waning Crescent16Thu
17Fri7:041.67:131.51:40-0.32:100.07:085:55Waning Crescent17Fri
18Sat7:521.68:011.52:30-0.32:58-0.17:085:55New Moon18Sat
19Sun8:351.68:441.53:16-0.33:43-0.17:085:56New Moon19Sun
20Mon9:151.69:261.53:59-0.34:25-0.17:085:57New Moon20Mon
21Tue9:521.610:051.54:41-0.25:06-0.17:085:58New Moon21Tue
22Wed10:281.510:441.45:20-0.25:45-0.17:075:58Waxing Crescent22Wed
23Thu11:041.511:231.45:58-0.16:23-0.17:075:59Waxing Crescent23Thu
24Fri11:391.46:370.07:010.07:076:00Waxing Crescent24Fri
25Sat12:031.312:161.37:150.17:410.07:076:01Waxing Crescent25Sat
26Sun12:461.312:561.37:570.18:250.07:066:01First Quarter26Sun
27Mon1:331.21:401.28:450.29:150.07:066:02First Quarter27Mon
28Tue2:261.22:311.29:400.210:110.07:066:03First Quarter28Tue
29Wed3:261.23:301.210:410.211:090.07:056:04First Quarter29Wed
30Thu4:291.24:341.211:420.27:056:04Waxing Gibbous30Thu
31Fri5:301.35:361.312:07-0.112:390.17:046:05Waxing Gibbous31Fri
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 6:41 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 0% 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 (0% 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