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

TIDE TIMES for Sunday, June 21, 2026
The tide is currently rising in Key Largo, South Sound, FL.
Next low tide : 10:39 pm (0.1 ft)
Next high tide : in 1h 26m at 3:16 pm (1.5 ft)
Sunset today : 8:14 pm
Sunrise tomorrow : 6:32 am
Moon phase : First Quarter (48% illuminated)
Tide Station Location : Station #8723667
Common Questions About Tides

Key Largo, South Sound, FL Tides - Jan 2028

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat11:401.511:591.46:310.17:000.17:065:43Waxing Crescent1Sat
2Sun12:161.47:100.27:400.17:075:44Waxing Crescent2Sun
3Mon12:431.312:551.37:530.28:230.17:075:44First Quarter3Mon
4Tue1:311.31:381.38:410.39:110.17:075:45First Quarter4Tue
5Wed2:241.32:261.39:360.310:050.17:075:46First Quarter5Wed
6Thu3:231.33:221.210:370.311:030.07:075:46First Quarter6Thu
7Fri4:251.34:231.311:370.37:085:47Waxing Gibbous7Fri
8Sat5:271.45:251.312:00-0.112:350.27:085:48Waxing Gibbous8Sat
9Sun6:251.56:251.412:56-0.21:290.17:085:48Waxing Gibbous9Sun
10Mon7:191.67:221.51:49-0.32:220.07:085:49Full Moon10Mon
11Tue8:091.78:161.62:41-0.43:13-0.17:085:50Full Moon11Tue
12Wed8:581.89:091.73:33-0.44:03-0.27:085:51Full Moon12Wed
13Thu9:451.810:011.74:23-0.44:53-0.37:085:51Full Moon13Thu
14Fri10:321.810:541.75:14-0.45:44-0.37:085:52Waning Gibbous14Fri
15Sat11:191.811:471.76:06-0.36:36-0.37:085:53Waning Gibbous15Sat
16Sun12:081.77:00-0.27:30-0.37:085:54Waning Gibbous16Sun
17Mon12:431.612:581.67:56-0.18:27-0.37:085:54Third Quarter17Mon
18Tue1:411.51:521.58:560.09:27-0.27:085:55Third Quarter18Tue
19Wed2:431.52:511.49:590.110:29-0.27:085:56Third Quarter19Wed
20Thu3:481.43:541.311:030.211:31-0.17:085:57Waning Crescent20Thu
21Fri4:541.44:581.312:050.27:075:57Waning Crescent21Fri
22Sat5:551.45:571.312:29-0.11:020.27:075:58Waning Crescent22Sat
23Sun6:481.46:501.31:23-0.11:540.17:075:59Waning Crescent23Sun
24Mon7:341.47:371.32:12-0.22:400.17:076:00New Moon24Mon
25Tue8:151.58:191.42:56-0.23:230.07:066:00New Moon25Tue
26Wed8:511.58:581.43:37-0.24:020.07:066:01New Moon26Wed
27Thu9:261.59:361.44:15-0.24:390.07:066:02New Moon27Thu
28Fri10:001.510:131.44:51-0.15:14-0.17:056:03Waxing Crescent28Fri
29Sat10:331.410:501.45:26-0.15:48-0.17:056:03Waxing Crescent29Sat
30Sun11:061.411:291.36:000.06:21-0.17:056:04Waxing Crescent30Sun
31Mon11:391.36:350.06:56-0.17:046:05Waxing Crescent31Mon
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 6:57 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 neap phase. Tonight's moon is 48% 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 minimum.

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 First Quarter (48% illuminated). This places Key Largo, South Sound, FL in a neap tide cycle, so tidal ranges are near their weekly minimum 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