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

TIDE TIMES for Thursday, July 9, 2026
The tide is currently rising in Largo Sound, Key Largo, FL.
Next low tide (tomorrow) : 1:42 am (0.2 ft)
Next high tide : in 5h 38m at 7:07 pm (0.8 ft)
Sunset today : 8:15 pm
Sunrise tomorrow : 6:38 am
Moon phase : Waning Crescent (30% illuminated)
Tide Station Location : Station #8723651
Common Questions About Tides

Largo Sound, Key Largo, FL Tides - Mar 1985

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri5:360.65:340.612:130.36:446:23First Quarter1Fri
2Sat6:430.76:450.612:400.01:180.26:436:24Waxing Gibbous2Sat
3Sun7:450.77:500.71:410.02:160.16:426:24Waxing Gibbous3Sun
4Mon8:390.88:480.82:38-0.13:090.06:416:25Waxing Gibbous4Mon
5Tue9:270.89:410.83:30-0.23:58-0.16:406:25Full Moon5Tue
6Wed10:130.910:310.94:19-0.34:45-0.26:396:26Full Moon6Wed
7Thu10:570.911:211.05:08-0.35:31-0.36:386:26Full Moon7Thu
8Fri11:420.95:56-0.36:18-0.36:376:27Waning Gibbous8Fri
9Sat12:101.012:260.96:44-0.27:06-0.46:366:27Waning Gibbous9Sat
10Sun1:001.01:130.97:34-0.27:57-0.36:356:28Waning Gibbous10Sun
11Mon1:520.92:020.88:27-0.18:51-0.36:346:28Waning Gibbous11Mon
12Tue2:470.92:560.89:240.09:51-0.26:336:29Third Quarter12Tue
13Wed3:480.83:570.710:270.110:57-0.16:326:29Third Quarter13Wed
14Thu4:550.85:050.711:360.26:316:30Third Quarter14Thu
15Fri6:060.76:170.712:060.012:450.26:306:30Waning Crescent15Fri
16Sat7:130.77:240.71:130.01:480.26:296:31Waning Crescent16Sat
17Sun8:100.88:220.72:130.02:440.16:286:31Waning Crescent17Sun
18Mon8:570.89:100.83:050.03:320.16:276:31Waning Crescent18Mon
19Tue9:380.89:530.83:510.04:130.06:266:32New Moon19Tue
20Wed10:140.810:310.84:32-0.14:510.06:256:32New Moon20Wed
21Thu10:470.811:070.85:100.05:27-0.16:246:33New Moon21Thu
22Fri11:200.811:420.85:450.06:00-0.16:236:33New Moon22Fri
23Sat11:520.86:200.06:32-0.16:226:34Waxing Crescent23Sat
24Sun12:170.812:240.86:530.17:040.06:216:34Waxing Crescent24Sun
25Mon12:530.812:570.77:260.17:370.06:206:35Waxing Crescent25Mon
26Tue1:300.81:320.78:000.28:130.06:186:35Waxing Crescent26Tue
27Wed2:110.72:100.78:390.28:560.16:176:35First Quarter27Wed
28Thu2:580.72:550.79:260.39:490.16:166:36First Quarter28Thu
29Fri3:540.73:530.610:260.310:540.16:156:36First Quarter29Fri
30Sat5:000.75:040.711:360.36:146:37First Quarter30Sat
31Sun6:070.76:180.712:040.112:450.26:136:37Waxing Gibbous31Sun
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 10:24 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 30% 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 Waning Crescent (30% 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