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

TIDE TIMES for Friday, July 31, 2026
The tide is currently rising in Largo Sound, Key Largo, FL.
Next low tide : 7:16 pm (0.0 ft)
Next high tide : in 1h 54m at 12:45 pm (0.8 ft)
Sunset today : 8:07 pm
Sunrise tomorrow : 6:48 am
Moon phase : Waning Gibbous (96% illuminated)
Tide Station Location : Station #8723651
Common Questions About Tides

Largo Sound, Key Largo, FL Tides - Apr 1959

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed5:100.85:320.811:550.16:136:37Third Quarter1Wed
2Thu6:160.86:400.812:240.012:590.16:126:38Waning Crescent2Thu
3Fri7:160.87:410.81:260.01:560.06:116:38Waning Crescent3Fri
4Sat8:100.88:340.82:220.02:470.06:106:39Waning Crescent4Sat
5Sun8:560.89:200.93:110.03:330.06:096:39Waning Crescent5Sun
6Mon9:370.910:010.93:560.04:14-0.16:086:39New Moon6Mon
7Tue10:150.910:390.94:370.04:53-0.16:076:40New Moon7Tue
8Wed10:510.911:160.95:150.05:30-0.16:066:40New Moon8Wed
9Thu11:250.811:520.95:520.06:06-0.16:056:41New Moon9Thu
10Fri12:000.86:280.16:400.06:046:41Waxing Crescent10Fri
11Sat12:280.912:360.87:030.17:150.06:036:42Waxing Crescent11Sat
12Sun1:060.81:130.87:390.17:510.06:026:42Waxing Crescent12Sun
13Mon1:460.81:520.78:170.28:310.16:016:43Waxing Crescent13Mon
14Tue2:290.82:370.79:000.29:180.16:006:43First Quarter14Tue
15Wed3:180.73:280.79:520.310:140.15:596:43First Quarter15Wed
16Thu4:120.74:290.710:530.211:180.25:586:44First Quarter16Thu
17Fri5:120.75:350.711:560.25:576:44First Quarter17Fri
18Sat6:130.86:410.812:230.112:570.15:566:45Waxing Gibbous18Sat
19Sun7:110.87:420.81:230.11:520.05:556:45Waxing Gibbous19Sun
20Mon8:060.98:380.92:200.02:44-0.15:546:46Waxing Gibbous20Mon
21Tue8:570.99:311.03:13-0.13:35-0.25:546:46Full Moon21Tue
22Wed9:481.010:231.04:04-0.14:24-0.35:536:47Full Moon22Wed
23Thu10:371.011:131.14:54-0.25:14-0.35:526:47Full Moon23Thu
24Fri11:271.05:44-0.26:05-0.45:516:48Full Moon24Fri
25Sat12:041.112:171.06:36-0.16:57-0.35:506:48Waning Gibbous25Sat
26Sun12:561.02:101.08:29-0.18:52-0.26:497:49Waning Gibbous26Sun
27Mon2:491.03:050.99:250.09:50-0.26:487:49Waning Gibbous27Mon
28Tue3:440.94:030.910:260.010:52-0.16:487:50Third Quarter28Tue
29Wed4:430.95:060.811:300.111:570.06:477:50Third Quarter29Wed
30Thu5:430.86:110.812:340.16:467:51Third Quarter30Thu
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 4:00 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 96% 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 Waning Gibbous (96% 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