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

TIDE TIMES for Saturday, July 11, 2026
The tide is currently rising in Largo Sound, Key Largo, FL.
Next low tide (tomorrow) : 3:44 am (0.1 ft)
Next high tide : in 56m at 9:16 pm (0.9 ft)
Sunset today : 8:15 pm
Sunrise tomorrow : 6:39 am
Moon phase : Waning Crescent (11% illuminated)
Tide Station Location : Station #8723651
Common Questions About Tides

Largo Sound, Key Largo, FL Tides - Sep 1981

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue1:081.01:291.07:480.18:080.27:027:40Waxing Crescent1Tue
2Wed1:451.02:100.98:280.18:490.27:027:39Waxing Crescent2Wed
3Thu2:220.92:510.99:090.29:310.37:037:38Waxing Crescent3Thu
4Fri3:000.93:340.99:520.210:160.47:037:37First Quarter4Fri
5Sat3:410.84:210.810:380.311:060.57:037:36First Quarter5Sat
6Sun4:280.85:140.811:300.37:047:35First Quarter6Sun
7Mon5:210.86:130.812:030.512:280.47:047:34First Quarter7Mon
8Tue6:210.87:130.81:030.51:260.37:047:33Waxing Gibbous8Tue
9Wed7:230.88:110.92:000.52:210.37:057:32Waxing Gibbous9Wed
10Thu8:210.99:040.92:520.43:110.27:057:31Waxing Gibbous10Thu
11Fri9:150.99:511.03:400.33:580.27:067:30Waxing Gibbous11Fri
12Sat10:061.010:361.04:250.34:440.17:067:29Full Moon12Sat
13Sun10:541.011:201.15:080.25:280.17:067:28Full Moon13Sun
14Mon11:411.15:510.16:130.17:077:26Full Moon14Mon
15Tue12:031.112:281.16:350.06:590.17:077:25Full Moon15Tue
16Wed12:471.11:161.17:200.07:470.17:077:24Waning Gibbous16Wed
17Thu1:321.12:061.18:090.08:370.27:087:23Waning Gibbous17Thu
18Fri2:201.13:001.19:000.09:320.27:087:22Waning Gibbous18Fri
19Sat3:131.03:571.19:570.110:320.37:097:21Third Quarter19Sat
20Sun4:101.05:001.011:010.111:390.47:097:20Third Quarter20Sun
21Mon5:141.06:061.012:090.27:097:19Third Quarter21Mon
22Tue6:231.07:131.012:470.41:170.27:107:18Waning Crescent22Tue
23Wed7:311.08:161.01:530.42:200.27:107:17Waning Crescent23Wed
24Thu8:341.09:111.02:530.33:170.27:107:16Waning Crescent24Thu
25Fri9:291.09:591.13:460.34:090.27:117:15Waning Crescent25Fri
26Sat10:181.110:421.14:340.24:560.27:117:13New Moon26Sat
27Sun11:021.111:221.15:170.25:390.27:127:12New Moon27Sun
28Mon11:431.111:591.15:580.26:190.27:127:11New Moon28Mon
29Tue12:221.16:370.26:580.27:127:10New Moon29Tue
30Wed12:341.01:001.17:140.27:360.37:137:09Waxing Crescent30Wed
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 12:30 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 11% 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 Waning Crescent (11% 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