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

TIDE TIMES for Saturday, July 4, 2026
The tide is currently rising in Key Largo, South Sound, FL.
Next low tide : 7:45 pm (0.1 ft)
Next high tide : in 4h 04m at 12:40 pm (1.4 ft)
Sunset today : 8:15 pm
Sunrise tomorrow : 6:36 am
Moon phase : Waning Gibbous (81% illuminated)
Tide Station Location : Station #8723667
Common Questions About Tides

Key Largo, South Sound, FL Tides - Sep 2008

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon10:462.011:011.95:360.05:590.17:027:40Waxing Crescent1Mon
2Tue11:291.911:391.86:180.06:410.27:037:39Waxing Crescent2Tue
3Wed12:101.97:000.17:230.37:037:38Waxing Crescent3Wed
4Thu12:171.812:511.87:410.28:060.47:037:37Waxing Crescent4Thu
5Fri12:551.71:341.78:250.38:510.57:047:36First Quarter5Fri
6Sat1:361.62:221.69:130.49:420.67:047:35First Quarter6Sat
7Sun2:231.53:161.510:070.410:410.77:047:34First Quarter7Sun
8Mon3:171.54:171.511:080.511:440.77:057:32First Quarter8Mon
9Tue4:191.55:191.512:090.57:057:31Waxing Gibbous9Tue
10Wed5:251.56:171.612:450.71:060.47:067:30Waxing Gibbous10Wed
11Thu6:251.67:071.71:380.61:550.47:067:29Waxing Gibbous11Thu
12Fri7:181.77:511.82:230.52:400.37:067:28Waxing Gibbous12Fri
13Sat8:071.88:331.93:050.43:230.37:077:27Full Moon13Sat
14Sun8:521.99:121.93:440.34:030.27:077:26Full Moon14Sun
15Mon9:362.09:522.04:230.24:440.27:077:25Full Moon15Mon
16Tue10:202.110:322.05:020.15:260.27:087:24Full Moon16Tue
17Wed11:052.111:142.05:430.06:090.27:087:23Waning Gibbous17Wed
18Thu11:522.111:581.96:270.06:550.37:087:22Waning Gibbous18Thu
19Fri12:422.07:150.17:460.47:097:21Waning Gibbous19Fri
20Sat12:471.91:381.98:090.18:430.57:097:20Third Quarter20Sat
21Sun1:431.82:401.99:110.29:480.57:107:18Third Quarter21Sun
22Mon2:481.83:471.810:200.311:010.67:107:17Third Quarter22Mon
23Tue3:591.74:561.811:330.37:107:16Third Quarter23Tue
24Wed5:131.86:011.912:120.512:410.37:117:15Waning Crescent24Wed
25Thu6:201.96:571.91:160.41:420.37:117:14Waning Crescent25Thu
26Fri7:192.07:472.02:110.32:360.27:117:13Waning Crescent26Fri
27Sat8:112.08:322.03:000.23:250.27:127:12New Moon27Sat
28Sun8:582.19:132.03:450.24:090.27:127:11New Moon28Sun
29Mon9:402.19:512.04:270.14:510.37:137:10New Moon29Mon
30Tue10:212.110:282.05:070.15:320.37:137:09New Moon30Tue
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 4:12 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 81% 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 Waning Gibbous (81% 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