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

TIDE TIMES for Wednesday, July 22, 2026
The tide is currently rising in Largo Sound, Key Largo, FL.
Next low tide (tomorrow) : 1:07 am (0.3 ft)
Next high tide : in 5h 17m at 6:21 pm (0.7 ft)
Sunset today : 8:11 pm
Sunrise tomorrow : 6:44 am
Moon phase : First Quarter (62% illuminated)
Tide Station Location : Station #8723651
Common Questions About Tides

Largo Sound, Key Largo, FL Tides - Sep 1972

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri5:190.96:200.912:190.17:027:40Third Quarter1Fri
2Sat6:300.97:280.912:570.41:280.17:027:39Waning Crescent2Sat
3Sun7:400.98:300.92:040.32:320.17:037:38Waning Crescent3Sun
4Mon8:440.99:251.03:050.33:300.17:037:37Waning Crescent4Mon
5Tue9:411.010:121.03:580.24:210.17:037:36Waning Crescent5Tue
6Wed10:301.010:551.04:470.25:080.17:047:35New Moon6Wed
7Thu11:151.011:341.05:300.15:520.17:047:34New Moon7Thu
8Fri11:561.06:110.16:330.17:057:33New Moon8Fri
9Sat12:111.012:361.06:500.17:120.27:057:32Waxing Crescent9Sat
10Sun12:461.01:131.07:280.17:500.37:057:31Waxing Crescent10Sun
11Mon1:211.01:511.08:050.28:270.37:067:29Waxing Crescent11Mon
12Tue1:560.92:300.98:430.29:060.47:067:28Waxing Crescent12Tue
13Wed2:330.93:120.99:230.39:470.57:067:27Waxing Crescent13Wed
14Thu3:140.83:590.910:070.310:360.57:077:26First Quarter14Thu
15Fri4:010.84:540.811:000.411:350.67:077:25First Quarter15Fri
16Sat4:560.85:540.812:020.47:077:24First Quarter16Sat
17Sun6:000.86:570.812:410.61:060.47:087:23First Quarter17Sun
18Mon7:070.87:540.91:430.52:040.47:087:22Waxing Gibbous18Mon
19Tue8:080.98:460.92:370.42:570.37:097:21Waxing Gibbous19Tue
20Wed9:041.09:331.03:250.33:460.27:097:20Waxing Gibbous20Wed
21Thu9:551.010:171.04:090.24:320.27:097:19Full Moon21Thu
22Fri10:431.111:011.14:530.15:170.17:107:18Full Moon22Fri
23Sat11:311.111:451.15:360.06:030.17:107:16Full Moon23Sat
24Sun12:181.26:210.06:490.17:117:15Full Moon24Sun
25Mon12:291.11:071.27:08-0.17:370.27:117:14Waning Gibbous25Mon
26Tue1:161.11:581.17:570.08:280.27:117:13Waning Gibbous26Tue
27Wed2:071.12:531.18:510.09:230.37:127:12Waning Gibbous27Wed
28Thu3:011.03:521.09:500.110:260.47:127:11Third Quarter28Thu
29Fri4:031.04:561.010:560.211:360.47:127:10Third Quarter29Fri
30Sat5:101.06:031.012:070.27:137:09Third Quarter30Sat
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 9:44 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 62% 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 First Quarter (62% 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