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

TIDE TIMES for Thursday, July 23, 2026
The tide is currently rising in Largo Sound, Key Largo, FL.
Next low tide (tomorrow) : 2:02 am (0.3 ft)
Next high tide : in 5h 25m at 7:20 pm (0.7 ft)
Sunset today : 8:11 pm
Sunrise tomorrow : 6:44 am
Moon phase : Waxing Gibbous (71% illuminated)
Tide Station Location : Station #8723651
Common Questions About Tides

Largo Sound, Key Largo, FL Tides - Sep 1970

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue11:510.96:130.26:280.27:027:40New Moon1Tue
2Wed12:080.912:280.96:460.27:020.27:027:39New Moon2Wed
3Thu12:410.91:050.97:180.27:350.27:027:38Waxing Crescent3Thu
4Fri1:150.91:420.97:500.28:090.37:037:37Waxing Crescent4Fri
5Sat1:480.92:220.98:240.28:460.37:037:36Waxing Crescent5Sat
6Sun2:230.93:050.99:030.29:280.47:047:35Waxing Crescent6Sun
7Mon3:030.83:550.99:490.210:190.47:047:34First Quarter7Mon
8Tue3:510.84:540.910:460.211:220.57:047:33First Quarter8Tue
9Wed4:510.86:020.911:540.27:057:32First Quarter9Wed
10Thu6:030.87:110.912:340.51:060.27:057:31Waxing Gibbous10Thu
11Fri7:180.98:150.91:450.42:140.27:057:30Waxing Gibbous11Fri
12Sat8:271.09:111.02:480.33:150.17:067:29Waxing Gibbous12Sat
13Sun9:281.010:021.13:450.24:100.07:067:28Waxing Gibbous13Sun
14Mon10:241.110:501.14:370.15:030.07:077:27Full Moon14Mon
15Tue11:161.211:371.15:260.05:530.07:077:26Full Moon15Tue
16Wed12:071.26:15-0.16:420.07:077:25Full Moon16Wed
17Thu12:221.112:561.27:03-0.17:310.17:087:24Waning Gibbous17Thu
18Fri1:081.11:451.17:51-0.18:200.27:087:22Waning Gibbous18Fri
19Sat1:541.12:351.18:410.09:110.37:087:21Waning Gibbous19Sat
20Sun2:431.03:271.09:340.110:060.47:097:20Third Quarter20Sun
21Mon3:340.94:230.910:310.211:060.57:097:19Third Quarter21Mon
22Tue4:300.95:250.911:340.37:107:18Third Quarter22Tue
23Wed5:330.96:300.912:120.512:400.47:107:17Third Quarter23Wed
24Thu6:390.87:320.91:180.51:430.47:107:16Waning Crescent24Thu
25Fri7:430.98:250.92:170.52:390.47:117:15Waning Crescent25Fri
26Sat8:370.99:090.93:080.53:270.47:117:14Waning Crescent26Sat
27Sun9:240.99:471.03:510.44:090.37:117:13Waning Crescent27Sun
28Mon10:061.010:231.04:300.34:480.37:127:12New Moon28Mon
29Tue10:451.010:581.05:050.35:240.37:127:11New Moon29Tue
30Wed11:231.011:331.05:390.25:590.37:137:10New Moon30Wed
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 10:41 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 transitional phase. Tonight's moon is 71% 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 shifting between spring and neap.

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 Waxing Gibbous (71% illuminated). This places Largo Sound, Key Largo, FL in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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