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

TIDE TIMES for Tuesday, August 4, 2026
The tide is currently falling in Key Largo, South Sound, FL.
Next low tide : in 5h 10m at 8:31 am (0.0 ft)
Next high tide : 1:53 pm (1.6 ft)
Sunset today : 8:04 pm
Sunrise tomorrow : 6:50 am
Moon phase : Third Quarter (66% illuminated)
Tide Station Location : Station #8723667
Common Questions About Tides

Key Largo, South Sound, FL Tides - Jan 1969

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed7:231.57:201.42:040.02:330.27:075:43Full Moon1Wed
2Thu8:041.58:021.42:45-0.13:130.27:075:44Full Moon2Thu
3Fri8:441.58:431.43:24-0.13:520.27:075:45Full Moon3Fri
4Sat9:221.59:231.44:02-0.14:300.27:075:45Full Moon4Sat
5Sun10:001.510:041.44:38-0.15:070.17:085:46Full Moon5Sun
6Mon10:371.510:451.45:15-0.15:430.17:085:47Waning Gibbous6Mon
7Tue11:141.511:271.45:520.06:210.17:085:47Waning Gibbous7Tue
8Wed11:511.46:320.07:020.17:085:48Waning Gibbous8Wed
9Thu12:121.412:301.47:170.17:470.07:085:49Waning Gibbous9Thu
10Fri1:021.41:131.48:080.18:390.07:085:50Third Quarter10Fri
11Sat1:581.42:031.39:070.29:38-0.17:085:50Third Quarter11Sat
12Sun3:011.43:011.310:120.210:41-0.17:085:51Third Quarter12Sun
13Mon4:081.44:071.311:180.211:45-0.27:085:52Waning Crescent13Mon
14Tue5:151.55:151.412:230.17:085:53Waning Crescent14Tue
15Wed6:191.66:201.512:47-0.31:230.17:085:53Waning Crescent15Wed
16Thu7:171.67:211.61:46-0.42:200.07:085:54New Moon16Thu
17Fri8:101.78:181.62:43-0.53:15-0.17:085:55New Moon17Fri
18Sat9:011.89:111.73:37-0.54:08-0.27:085:56New Moon18Sat
19Sun9:481.810:031.74:29-0.54:59-0.27:085:56New Moon19Sun
20Mon10:341.710:541.75:20-0.45:49-0.37:085:57Waxing Crescent20Mon
21Tue11:191.711:431.66:10-0.36:39-0.37:075:58Waxing Crescent21Tue
22Wed12:031.67:00-0.27:29-0.27:075:59Waxing Crescent22Wed
23Thu12:331.512:471.57:510.08:20-0.27:075:59First Quarter23Thu
24Fri1:251.41:331.38:440.19:12-0.17:076:00First Quarter24Fri
25Sat2:181.32:211.29:400.210:060.07:066:01First Quarter25Sat
26Sun3:151.23:141.210:380.311:020.07:066:02First Quarter26Sun
27Mon4:151.24:121.111:350.311:580.07:066:02Waxing Gibbous27Mon
28Tue5:151.25:111.112:310.37:056:03Waxing Gibbous28Tue
29Wed6:101.26:061.212:500.01:220.37:056:04Waxing Gibbous29Wed
30Thu6:581.36:561.21:390.02:090.27:056:04Waxing Gibbous30Thu
31Fri7:411.37:411.32:23-0.12:510.17:046:05Full Moon31Fri
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 11:12 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 transitional phase. Tonight's moon is 66% 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 shifting between spring and neap.

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 Third Quarter (66% illuminated). This places Key Largo, South Sound, FL in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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