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

TIDE TIMES for Sunday, July 12, 2026
The tide is currently falling in Largo Sound, Key Largo, FL.
Next low tide : in 4h 19m at 4:08 pm (-0.2 ft)
Next high tide : 10:15 pm (0.9 ft)
Sunset today : 8:14 pm
Sunrise tomorrow : 6:39 am
Moon phase : Waning Crescent (5% illuminated)
Tide Station Location : Station #8723651
Common Questions About Tides

Largo Sound, Key Largo, FL Tides - Sep 1980

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon4:171.05:031.011:100.011:440.37:027:40Third Quarter1Mon
2Tue5:180.96:080.912:140.17:027:39Third Quarter2Tue
3Wed6:230.97:140.912:500.31:190.17:037:38Waning Crescent3Wed
4Thu7:290.98:160.91:540.32:200.17:037:37Waning Crescent4Thu
5Fri8:300.99:111.02:520.33:150.17:037:36Waning Crescent5Fri
6Sat9:240.99:581.03:440.34:050.17:047:35Waning Crescent6Sat
7Sun10:111.010:401.04:310.24:510.17:047:34New Moon7Sun
8Mon10:541.011:181.05:140.25:320.17:057:33New Moon8Mon
9Tue11:341.011:541.05:540.26:120.27:057:32New Moon9Tue
10Wed12:111.06:310.26:490.27:057:30New Moon10Wed
11Thu12:281.012:481.07:070.27:250.27:067:29Waxing Crescent11Thu
12Fri1:031.01:251.07:420.28:000.37:067:28Waxing Crescent12Fri
13Sat1:370.92:031.08:160.28:360.37:067:27Waxing Crescent13Sat
14Sun2:130.92:440.98:520.39:140.47:077:26Waxing Crescent14Sun
15Mon2:520.93:270.99:310.39:560.47:077:25First Quarter15Mon
16Tue3:340.94:170.910:170.310:480.57:087:24First Quarter16Tue
17Wed4:230.85:130.911:130.311:490.57:087:23First Quarter17Wed
18Thu5:210.86:150.912:160.37:087:22First Quarter18Thu
19Fri6:260.97:180.912:540.51:210.37:097:21Waxing Gibbous19Fri
20Sat7:320.98:181.01:570.42:210.27:097:20Waxing Gibbous20Sat
21Sun8:341.09:121.02:530.33:180.27:097:19Waxing Gibbous21Sun
22Mon9:321.110:031.13:460.24:110.17:107:17Waxing Gibbous22Mon
23Tue10:251.110:511.14:360.15:020.07:107:16Full Moon23Tue
24Wed11:171.211:391.25:250.05:520.07:117:15Full Moon24Wed
25Thu12:081.26:14-0.16:410.07:117:14Full Moon25Thu
26Fri12:271.212:591.27:04-0.17:320.17:117:13Waning Gibbous26Fri
27Sat1:161.21:511.27:55-0.18:250.17:127:12Waning Gibbous27Sat
28Sun2:061.12:441.28:480.09:200.27:127:11Waning Gibbous28Sun
29Mon2:591.13:411.19:450.110:200.37:137:10Third Quarter29Mon
30Tue3:561.04:411.010:470.211:240.47:137:09Third Quarter30Tue
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 7:11 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 Largo Sound, Key Largo, FL?

Largo Sound, Key Largo, FL is currently in a spring phase. Tonight's moon is 5% 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 (5% 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