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

TIDE TIMES for Wednesday, August 12, 2026
The tide is currently falling in Largo Sound, Key Largo, FL.
Next low tide : in 4h 25m at 5:22 am (0.0 ft)
Next high tide : 11:05 am (1.0 ft)
Sunset today : 7:58 pm
Sunrise tomorrow : 6:54 am
Moon phase : New Moon (0% illuminated)
Tide Station Location : Station #8723651
Common Questions About Tides

Largo Sound, Key Largo, FL Tides - Sep 1939

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri12:420.91:040.97:170.17:340.27:017:41Waning Gibbous1Fri
2Sat1:180.91:430.97:510.28:090.27:027:40Waning Gibbous2Sat
3Sun1:530.92:230.98:270.28:470.37:027:39Waning Gibbous3Sun
4Mon2:310.93:070.99:070.29:300.37:037:38Waning Gibbous4Mon
5Tue3:130.93:570.99:540.210:220.47:037:37Third Quarter5Tue
6Wed4:010.94:530.910:500.211:230.47:037:36Third Quarter6Wed
7Thu5:000.95:570.911:550.27:047:35Third Quarter7Thu
8Fri6:070.97:030.912:310.41:030.27:047:34Waning Crescent8Fri
9Sat7:170.98:051.01:390.32:080.17:047:33Waning Crescent9Sat
10Sun8:241.09:031.02:400.23:080.17:057:32Waning Crescent10Sun
11Mon9:241.19:561.13:370.14:040.07:057:31Waning Crescent11Mon
12Tue10:201.110:471.14:310.04:570.07:067:29New Moon12Tue
13Wed11:131.211:361.25:22-0.15:49-0.17:067:28New Moon13Wed
14Thu12:051.26:12-0.16:390.07:067:27New Moon14Thu
15Fri12:231.212:551.27:02-0.17:290.07:077:26Waxing Crescent15Fri
16Sat1:111.11:451.27:52-0.18:200.17:077:25Waxing Crescent16Sat
17Sun1:591.12:361.18:430.09:120.27:077:24Waxing Crescent17Sun
18Mon2:491.03:281.09:370.110:080.37:087:23First Quarter18Mon
19Tue3:411.04:241.010:350.211:080.47:087:22First Quarter19Tue
20Wed4:370.95:220.911:360.37:097:21First Quarter20Wed
21Thu5:370.96:230.912:110.412:390.37:097:20First Quarter21Thu
22Fri6:390.97:220.91:130.51:380.37:097:19Waxing Gibbous22Fri
23Sat7:390.98:150.92:100.42:330.37:107:18Waxing Gibbous23Sat
24Sun7:330.98:010.92:000.42:210.36:106:16Waxing Gibbous24Sun
25Mon8:200.98:421.02:450.43:040.36:116:15Waxing Gibbous25Mon
26Tue9:021.09:211.03:250.33:440.36:116:14Full Moon26Tue
27Wed9:421.09:581.04:020.34:210.36:116:13Full Moon27Wed
28Thu10:211.010:351.04:370.24:570.36:126:12Full Moon28Thu
29Fri11:001.011:111.05:110.25:310.36:126:11Full Moon29Fri
30Sat11:381.011:481.05:450.26:060.36:126:10Waning Gibbous30Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8723651)

Common Questions About Largo Sound, Key Largo, FL Tides

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What time does the tide turn (slack tide) in Largo Sound, Key Largo, FL today?

Slack tide in Largo Sound, Key Largo, FL is approximately 8:13 am — 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 Largo Sound, Key Largo, FL?

Largo Sound, Key Largo, FL is currently in a spring phase. Tonight's moon is 0% 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 Largo Sound, Key Largo, 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 Largo Sound, Key Largo, FL?

Tide predictions for Largo Sound, Key Largo, 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 Largo Sound, Key Largo, FL?

Tide data for Largo Sound, Key Largo, FL is sourced from NOAA Station #8723651. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8723651.

What is the moon phase in Largo Sound, Key Largo, FL tonight?

Tonight the moon over Largo Sound, Key Largo, FL is New Moon (0% illuminated). This places Largo Sound, Key Largo, 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