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 1h 38m 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 - Dec 1999

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed3:421.74:061.711:040.311:350.26:495:31Third Quarter1Wed
2Thu4:441.75:011.712:020.36:505:31Waning Crescent2Thu
3Fri5:401.75:511.712:270.112:530.36:515:31Waning Crescent3Fri
4Sat6:281.76:351.71:140.11:400.36:515:31Waning Crescent4Sat
5Sun7:121.87:171.71:560.12:220.36:525:31Waning Crescent5Sun
6Mon7:521.87:551.62:360.03:020.36:535:32New Moon6Mon
7Tue8:301.88:331.63:140.03:410.36:535:32New Moon7Tue
8Wed9:071.89:111.63:510.04:180.36:545:32New Moon8Wed
9Thu9:451.79:491.64:270.04:540.36:555:32New Moon9Thu
10Fri10:231.710:281.55:030.15:310.36:555:32Waxing Crescent10Fri
11Sat11:021.711:091.55:390.16:080.36:565:33Waxing Crescent11Sat
12Sun11:431.611:521.56:170.16:490.36:575:33Waxing Crescent12Sun
13Mon12:251.66:590.27:340.36:575:33Waxing Crescent13Mon
14Tue12:401.41:101.57:470.28:260.36:585:34First Quarter14Tue
15Wed1:331.42:001.58:440.39:230.26:595:34First Quarter15Wed
16Thu2:331.42:541.59:460.310:230.26:595:34First Quarter16Thu
17Fri3:361.53:521.510:500.211:210.07:005:35First Quarter17Fri
18Sat4:391.64:511.611:520.27:005:35Waxing Gibbous18Sat
19Sun5:401.75:491.712:18-0.112:500.17:015:36Waxing Gibbous19Sun
20Mon6:381.86:461.71:13-0.21:450.07:015:36Waxing Gibbous20Mon
21Tue7:321.97:411.82:06-0.32:38-0.17:025:36Full Moon21Tue
22Wed8:252.08:351.82:59-0.43:31-0.17:025:37Full Moon22Wed
23Thu9:172.09:281.93:51-0.54:23-0.17:035:37Full Moon23Thu
24Fri10:082.010:211.84:44-0.45:16-0.17:035:38Waning Gibbous24Fri
25Sat10:591.911:151.85:37-0.46:10-0.17:045:39Waning Gibbous25Sat
26Sun11:501.86:32-0.37:06-0.17:045:39Waning Gibbous26Sun
27Mon12:101.712:411.77:29-0.18:050.07:055:40Waning Gibbous27Mon
28Tue1:071.61:341.68:280.09:040.07:055:40Third Quarter28Tue
29Wed2:061.52:291.59:290.110:040.07:055:41Third Quarter29Wed
30Thu3:071.43:241.410:300.211:000.07:065:42Third Quarter30Thu
31Fri4:081.44:191.411:280.211:540.07:065:42Waning Crescent31Fri
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