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 3h 01m 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 - Aug 2008

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri9:301.810:061.94:240.04:47-0.36:498:06New Moon1Fri
2Sat10:211.810:511.95:15-0.15:36-0.26:498:05New Moon2Sat
3Sun11:101.811:341.86:04-0.16:25-0.16:508:05Waxing Crescent3Sun
4Mon11:571.86:51-0.17:120.06:508:04Waxing Crescent4Mon
5Tue12:151.812:431.77:37-0.17:590.16:518:03Waxing Crescent5Tue
6Wed12:561.71:291.68:230.08:460.26:518:03Waxing Crescent6Wed
7Thu1:371.62:161.59:110.19:360.36:528:02First Quarter7Thu
8Fri2:201.53:061.510:010.210:290.46:528:01First Quarter8Fri
9Sat3:071.44:011.410:550.211:260.56:538:01First Quarter9Sat
10Sun3:591.35:001.411:520.36:538:00First Quarter10Sun
11Mon4:581.36:001.412:240.512:480.36:537:59Waxing Gibbous11Mon
12Tue5:591.46:561.51:200.51:400.26:547:58Waxing Gibbous12Tue
13Wed6:561.47:441.52:110.52:280.26:547:57Waxing Gibbous13Wed
14Thu7:471.58:281.62:570.43:110.16:557:57Waxing Gibbous14Thu
15Fri8:341.69:091.73:390.33:520.16:557:56Full Moon15Fri
16Sat9:191.69:481.84:180.24:320.16:567:55Full Moon16Sat
17Sun10:011.710:251.84:550.25:110.16:567:54Full Moon17Sun
18Mon10:441.811:031.85:330.15:500.16:577:53Full Moon18Mon
19Tue11:271.811:421.86:110.06:310.16:577:52Waning Gibbous19Tue
20Wed12:121.86:520.07:150.26:577:51Waning Gibbous20Wed
21Thu12:221.71:001.87:370.08:030.26:587:50Waning Gibbous21Thu
22Fri1:061.71:531.78:270.08:570.36:587:50Third Quarter22Fri
23Sat1:561.62:521.79:250.19:590.46:597:49Third Quarter23Sat
24Sun2:551.63:591.710:310.111:090.46:597:48Third Quarter24Sun
25Mon4:031.65:091.711:410.16:597:47Third Quarter25Mon
26Tue5:161.66:171.712:190.412:500.17:007:46Waning Crescent26Tue
27Wed6:261.77:171.81:250.41:520.07:007:45Waning Crescent27Wed
28Thu7:291.88:101.92:240.32:490.07:017:44Waning Crescent28Thu
29Fri8:251.98:572.03:180.23:410.07:017:43New Moon29Fri
30Sat9:162.09:412.04:070.14:300.07:017:42New Moon30Sat
31Sun10:022.010:222.04:530.05:150.07:027:41New Moon31Sun
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