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 : 8:57 pm (0.1 ft)
Next high tide : in 4h 14m at 2:18 pm (1.0 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 - Oct 1933

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun8:411.19:041.12:550.23:200.26:136:09Waxing Gibbous1Sun
2Mon9:301.19:461.13:410.14:060.26:136:07Full Moon2Mon
3Tue10:141.110:261.14:250.14:500.26:146:06Full Moon3Tue
4Wed10:561.111:041.15:060.15:310.26:146:05Full Moon4Wed
5Thu11:361.111:411.05:450.16:110.36:156:04Waning Gibbous5Thu
6Fri12:151.16:240.16:500.46:156:03Waning Gibbous6Fri
7Sat12:181.012:541.07:030.27:300.46:166:02Waning Gibbous7Sat
8Sun12:560.91:351.07:440.38:110.56:166:01Waning Gibbous8Sun
9Mon1:360.92:190.98:280.48:580.66:166:00Third Quarter9Mon
10Tue2:210.93:100.99:180.49:540.66:175:59Third Quarter10Tue
11Wed3:130.84:060.910:160.510:580.66:175:58Third Quarter11Wed
12Thu4:140.85:050.911:210.56:185:57Third Quarter12Thu
13Fri5:200.86:030.912:020.612:220.56:185:56Third Quarter13Fri
14Sat6:230.96:560.912:570.51:160.46:195:56Waning Crescent14Sat
15Sun7:200.97:431.01:450.42:050.46:195:55Waning Crescent15Sun
16Mon8:101.08:271.02:270.32:500.36:205:54Waning Crescent16Mon
17Tue8:581.19:101.03:080.23:330.36:205:53New Moon17Tue
18Wed9:441.19:531.13:490.14:160.36:215:52New Moon18Wed
19Thu10:291.210:361.14:310.15:000.26:215:51New Moon19Thu
20Fri11:161.211:211.15:140.05:450.26:225:50New Moon20Fri
21Sat12:051.26:010.06:320.36:225:49Waxing Crescent21Sat
22Sun12:091.112:561.16:510.07:230.36:235:48Waxing Crescent22Sun
23Mon1:011.01:511.17:450.18:200.46:235:48Waxing Crescent23Mon
24Tue1:591.02:511.08:460.29:250.46:245:47First Quarter24Tue
25Wed3:031.03:541.09:540.210:370.46:255:46First Quarter25Wed
26Thu4:131.04:591.011:060.311:470.46:255:45First Quarter26Thu
27Fri5:251.06:021.012:150.36:265:44Waxing Gibbous27Fri
28Sat6:321.06:591.012:500.31:170.36:265:44Waxing Gibbous28Sat
29Sun7:321.07:501.01:450.22:110.36:275:43Waxing Gibbous29Sun
30Mon8:241.18:361.02:330.23:000.36:275:42Waxing Gibbous30Mon
31Tue9:101.19:181.03:180.13:450.36:285:42Full Moon31Tue
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 5:37 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 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