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

TIDE TIMES for Thursday, July 9, 2026
The tide is currently falling in Key Largo, South Sound, FL.
Next low tide : in 35m at 11:52 am (-0.1 ft)
Next high tide : 5:17 pm (1.5 ft)
Sunset today : 8:15 pm
Sunrise tomorrow : 6:38 am
Moon phase : Waning Crescent (30% illuminated)
Tide Station Location : Station #8723667
Common Questions About Tides

Key Largo, South Sound, FL Tides - Nov 1999

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon2:581.83:381.910:250.311:030.46:295:41Third Quarter1Mon
2Tue4:061.84:391.911:290.36:295:40Waning Crescent2Tue
3Wed5:091.95:341.912:020.412:270.36:305:40Waning Crescent3Wed
4Thu6:051.96:231.912:540.31:190.36:305:39Waning Crescent4Thu
5Fri6:532.07:071.91:400.22:050.36:315:38Waning Crescent5Fri
6Sat7:372.07:471.92:230.22:470.36:325:38New Moon6Sat
7Sun8:162.08:241.93:020.23:270.36:325:37New Moon7Sun
8Mon8:542.09:001.93:400.24:050.46:335:37New Moon8Mon
9Tue9:312.09:361.84:170.24:420.46:345:36New Moon9Tue
10Wed10:081.910:131.84:530.25:190.46:345:36Waxing Crescent10Wed
11Thu10:461.910:511.75:290.35:560.56:355:35Waxing Crescent11Thu
12Fri11:261.811:311.66:050.36:350.56:365:35Waxing Crescent12Fri
13Sat12:091.76:450.47:180.66:365:34Waxing Crescent13Sat
14Sun12:161.612:551.77:290.48:070.66:375:34First Quarter14Sun
15Mon1:071.51:461.68:220.59:050.66:385:34First Quarter15Mon
16Tue2:041.52:401.69:230.510:050.56:395:33First Quarter16Tue
17Wed3:071.63:371.710:270.511:030.46:395:33First Quarter17Wed
18Thu4:091.74:331.711:280.411:570.36:405:33Waxing Gibbous18Thu
19Fri5:091.85:271.812:240.36:415:32Waxing Gibbous19Fri
20Sat6:061.96:191.912:480.11:170.26:415:32Waxing Gibbous20Sat
21Sun6:592.07:101.91:380.02:080.26:425:32Full Moon21Sun
22Mon7:512.18:012.02:27-0.12:580.16:435:32Full Moon22Mon
23Tue8:422.28:512.03:17-0.23:480.16:445:32Full Moon23Tue
24Wed9:332.29:432.04:07-0.34:390.16:445:31Full Moon24Wed
25Thu10:242.210:362.04:59-0.25:310.16:455:31Waning Gibbous25Thu
26Fri11:172.111:321.95:52-0.26:270.16:465:31Waning Gibbous26Fri
27Sat12:122.06:50-0.17:270.26:465:31Waning Gibbous27Sat
28Sun12:301.81:081.97:510.08:300.26:475:31Third Quarter28Sun
29Mon1:321.82:071.88:550.29:350.26:485:31Third Quarter29Mon
30Tue2:361.73:071.710:010.210:380.26:495:31Third Quarter30Tue
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 2:34 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 transitional phase. Tonight's moon is 30% 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 Waning Crescent (30% 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