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

TIDE TIMES for Monday, July 13, 2026
The tide is currently falling in Key Largo, South Sound, FL.
Next low tide : in 3h 09m at 3:51 pm (-0.4 ft)
Next high tide : 9:19 pm (1.8 ft)
Sunset today : 8:14 pm
Sunrise tomorrow : 6:40 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #8723667
Common Questions About Tides

Key Largo, South Sound, FL Tides - Sep 1993

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed9:511.810:081.84:470.25:050.27:027:40Full Moon1Wed
2Thu10:281.810:421.85:230.25:410.27:027:39Full Moon2Thu
3Fri11:051.811:161.85:580.26:160.37:037:38Waning Gibbous3Fri
4Sat11:421.811:501.76:320.26:500.47:037:37Waning Gibbous4Sat
5Sun12:201.77:060.27:250.47:047:36Waning Gibbous5Sun
6Mon12:261.71:011.77:420.38:030.57:047:35Waning Gibbous6Mon
7Tue1:051.61:461.68:230.38:470.67:047:34Third Quarter7Tue
8Wed1:481.62:371.69:110.49:420.67:057:33Third Quarter8Wed
9Thu2:401.53:361.610:100.410:460.67:057:32Third Quarter9Thu
10Fri3:421.64:401.611:160.411:530.67:057:31Third Quarter10Fri
11Sat4:501.65:421.712:210.37:067:30Waning Crescent11Sat
12Sun5:571.76:401.812:550.51:210.27:067:29Waning Crescent12Sun
13Mon6:591.97:331.91:510.32:170.27:067:27Waning Crescent13Mon
14Tue7:552.08:232.02:440.23:090.17:077:26New Moon14Tue
15Wed8:492.19:112.13:340.04:000.07:077:25New Moon15Wed
16Thu9:402.29:582.24:22-0.14:500.07:087:24New Moon16Thu
17Fri10:312.310:462.25:11-0.25:390.07:087:23New Moon17Fri
18Sat11:222.311:352.16:01-0.26:300.17:087:22Waxing Crescent18Sat
19Sun12:142.26:53-0.17:230.27:097:21Waxing Crescent19Sun
20Mon12:262.11:082.17:470.08:190.37:097:20Waxing Crescent20Mon
21Tue1:202.02:052.08:460.19:200.47:097:19First Quarter21Tue
22Wed2:181.93:061.99:490.210:260.57:107:18First Quarter22Wed
23Thu3:221.84:111.810:560.311:330.57:107:17First Quarter23Thu
24Fri4:291.75:141.812:010.47:117:16First Quarter24Fri
25Sat5:341.76:131.812:350.51:010.47:117:15Waxing Gibbous25Sat
26Sun6:331.87:021.81:310.51:540.47:117:13Waxing Gibbous26Sun
27Mon7:231.87:451.82:190.42:400.47:127:12Waxing Gibbous27Mon
28Tue8:071.98:241.93:010.43:220.47:127:11Waxing Gibbous28Tue
29Wed8:461.99:001.93:400.34:010.47:137:10Full Moon29Wed
30Thu9:242.09:341.94:160.34:370.47:137:09Full Moon30Thu
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 6:35 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 spring phase. Tonight's moon is 1% 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 maximum.

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 New Moon (1% illuminated). This places Key Largo, South Sound, FL in a spring tide cycle, so tidal ranges are near their weekly maximum 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