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

TIDE TIMES for Sunday, August 16, 2026
The tide is currently rising in Largo Sound, Key Largo, FL.
Next low tide (tomorrow) : 9:20 am (0.0 ft)
Next high tide (tomorrow) : in 4h 06m at 2:30 am (0.9 ft)
Sunset today : 7:55 pm
Sunrise tomorrow : 6:55 am
Moon phase : Waxing Crescent (18% illuminated)
Tide Station Location : Station #8723651
Common Questions About Tides

Largo Sound, Key Largo, FL Tides - Jan 1933

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun2:040.82:270.88:470.09:200.07:075:43Waxing Crescent1Sun
2Mon2:560.83:120.89:410.110:120.07:075:44First Quarter2Mon
3Tue3:490.73:590.710:360.211:060.07:075:44First Quarter3Tue
4Wed4:440.74:480.711:320.211:580.17:075:45First Quarter4Wed
5Thu5:410.75:400.712:280.37:085:46First Quarter5Thu
6Fri6:380.76:340.612:500.11:210.37:085:46Waxing Gibbous6Fri
7Sat7:310.77:270.71:400.02:110.27:085:47Waxing Gibbous7Sat
8Sun8:210.78:170.72:270.02:580.27:085:48Waxing Gibbous8Sun
9Mon9:070.79:040.73:110.03:410.27:085:49Waxing Gibbous9Mon
10Tue9:500.89:490.73:53-0.14:220.17:085:49Full Moon10Tue
11Wed10:310.810:320.74:33-0.15:010.17:085:50Full Moon11Wed
12Thu11:100.811:140.75:11-0.15:390.17:085:51Full Moon12Thu
13Fri11:480.811:560.85:49-0.16:170.07:085:52Full Moon13Fri
14Sat12:260.86:28-0.16:560.07:085:52Waning Gibbous14Sat
15Sun12:400.81:040.87:09-0.17:37-0.17:085:53Waning Gibbous15Sun
16Mon1:250.81:440.87:54-0.18:22-0.17:085:54Waning Gibbous16Mon
17Tue2:130.82:260.88:430.09:12-0.17:085:55Third Quarter17Tue
18Wed3:070.83:140.79:380.110:09-0.17:085:55Third Quarter18Wed
19Thu4:070.74:100.710:410.111:11-0.17:085:56Third Quarter19Thu
20Fri5:130.75:140.711:480.17:085:57Third Quarter20Fri
21Sat6:230.86:240.712:18-0.212:550.17:085:58Waning Crescent21Sat
22Sun7:300.87:330.71:23-0.22:000.17:075:58Waning Crescent22Sun
23Mon8:320.88:360.82:25-0.32:590.07:075:59Waning Crescent23Mon
24Tue9:270.99:340.83:23-0.33:55-0.17:076:00New Moon24Tue
25Wed10:170.910:270.94:17-0.34:47-0.17:076:01New Moon25Wed
26Thu11:030.911:160.95:08-0.35:36-0.27:066:01New Moon26Thu
27Fri11:470.95:56-0.36:24-0.27:066:02New Moon27Fri
28Sat12:030.912:280.96:43-0.27:09-0.27:066:03Waxing Crescent28Sat
29Sun12:490.81:080.87:28-0.27:54-0.27:056:03Waxing Crescent29Sun
30Mon1:330.81:470.88:13-0.18:38-0.17:056:04Waxing Crescent30Mon
31Tue2:170.72:260.78:590.09:24-0.17:046:05First Quarter31Tue
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 5:55 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 18% 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 Waxing Crescent (18% 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