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

TIDE TIMES for Saturday, June 20, 2026
The tide is currently falling in Key Largo, South Sound, FL.
Next low tide : in 6h 54m at 9:40 pm (0.0 ft)
Next high tide (tomorrow) : 2:41 am (1.6 ft)
Sunset today : 8:14 pm
Sunrise tomorrow : 6:32 am
Moon phase : First Quarter (37% illuminated)
Tide Station Location : Station #8723667
Common Questions About Tides

Key Largo, South Sound, FL Tides - Jun 2026

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon10:151.410:541.55:250.25:340.06:318:07Full Moon1Mon
2Tue10:541.411:331.56:020.26:110.06:318:08Waning Gibbous2Tue
3Wed11:341.46:400.26:480.06:318:08Waning Gibbous3Wed
4Thu12:131.512:161.37:190.37:270.16:318:08Waning Gibbous4Thu
5Fri12:521.51:001.38:010.38:100.16:318:09Waning Gibbous5Fri
6Sat1:331.41:481.38:460.28:580.26:318:09Third Quarter6Sat
7Sun2:161.42:411.39:350.29:530.26:318:10Third Quarter7Sun
8Mon3:021.43:391.410:290.110:540.26:318:10Third Quarter8Mon
9Tue3:531.44:411.411:250.011:560.26:318:10Third Quarter9Tue
10Wed4:481.45:431.512:22-0.16:318:11Waning Crescent10Wed
11Thu5:461.46:451.612:560.21:19-0.26:318:11Waning Crescent11Thu
12Fri6:461.57:431.71:540.12:14-0.36:318:12Waning Crescent12Fri
13Sat7:451.68:401.82:490.13:09-0.46:318:12New Moon13Sat
14Sun8:431.69:341.83:440.04:04-0.46:318:12New Moon14Sun
15Mon9:391.710:271.94:380.04:59-0.46:318:13New Moon15Mon
16Tue10:351.711:191.85:32-0.15:53-0.46:318:13New Moon16Tue
17Wed11:301.76:26-0.16:48-0.36:318:13Waxing Crescent17Wed
18Thu12:091.812:251.77:22-0.17:44-0.26:318:13Waxing Crescent18Thu
19Fri1:001.71:211.68:19-0.18:41-0.16:328:14Waxing Crescent19Fri
20Sat1:501.72:181.69:16-0.19:400.06:328:14First Quarter20Sat
21Sun2:411.63:161.510:140.010:390.16:328:14First Quarter21Sun
22Mon3:321.54:151.411:090.011:370.26:328:14First Quarter22Mon
23Tue4:241.45:141.412:030.06:328:14First Quarter23Tue
24Wed5:171.36:101.412:320.212:540.06:338:15Waxing Gibbous24Wed
25Thu6:091.37:021.41:240.31:420.06:338:15Waxing Gibbous25Thu
26Fri6:581.37:491.42:130.32:280.06:338:15Waxing Gibbous26Fri
27Sat7:451.38:331.52:580.33:120.06:348:15Waxing Gibbous27Sat
28Sun8:301.49:141.53:410.33:540.06:348:15Full Moon28Sun
29Mon9:121.49:541.54:220.24:33-0.16:348:15Full Moon29Mon
30Tue9:541.410:331.55:020.25:12-0.16:358:15Full Moon30Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8723667)

Common Questions About Key Largo, South Sound, FL Tides

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When is the lowest tide this week in Key Largo, South Sound, FL?

The lowest tide this week in Key Largo, South Sound, FL is 0.0 ft on Sunday, Jun 21 at 10:14 am.

When is the highest tide this week in Key Largo, South Sound, FL?

The highest tide this week in Key Largo, South Sound, FL is 1.6 ft on Sunday, Jun 21 at 2:41 am — worth noting for launching your boat and being alert for possible high tide flooding.

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 12:10 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 37% 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 time is high tide in Key Largo, South Sound, FL today?

High tides in Key Largo, South Sound, FL today: 1:50 am (1.7 ft), 2:18 pm (1.6 ft).

What time is low tide in Key Largo, South Sound, FL today?

Low tides in Key Largo, South Sound, FL today: 9:16 am (-0.1 ft), 9:40 pm (0.0 ft). The 9:16 am low of -0.1 ft is a minus tide — water below the MLLW reference datum, which can expose tidepools, mudflats, and shellfish beds not normally accessible.

What is the tidal range in Key Largo, South Sound, FL today?

Today's tidal range in Key Largo, South Sound, FL is 1.7 ft — the difference between the day's highest and lowest water level. This month's average daily range is about 1.6 ft, so today's swing is typical.

What is the moon phase in Key Largo, South Sound, FL tonight?

Tonight the moon over Key Largo, South Sound, FL is First Quarter (37% illuminated). This places Key Largo, South Sound, FL in a transitional tide cycle, so tidal ranges are shifting between spring and neap this week.

What type of tides does Key Largo, South Sound, FL have — semi-diurnal, diurnal, or mixed?

Key Largo, South Sound, FL has semi-diurnal tides — two high tides and two low tides roughly every 24 hours and 50 minutes, with similar heights.

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