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

TIDE TIMES for Sunday, August 9, 2026
The tide is currently rising in Largo Sound, Key Largo, FL.
Next low tide (tomorrow) : 3:31 am (0.2 ft)
Next high tide : in 4h 54m at 9:03 pm (0.9 ft)
Sunset today : 8:01 pm
Sunrise tomorrow : 6:52 am
Moon phase : Waning Crescent (13% illuminated)
Tide Station Location : Station #8723651
Common Questions About Tides

Largo Sound, Key Largo, FL Tides - Jan 1944

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat3:350.94:050.910:16-0.110:52-0.18:066:43First Quarter1Sat
2Sun4:370.85:010.911:190.011:55-0.18:076:43First Quarter2Sun
3Mon5:410.86:000.812:230.08:076:44First Quarter3Mon
4Tue6:460.87:000.812:56-0.11:260.18:076:45Waxing Gibbous4Tue
5Wed7:490.87:590.81:55-0.12:260.18:076:45Waxing Gibbous5Wed
6Thu8:470.88:540.82:50-0.13:200.18:086:46Waxing Gibbous6Thu
7Fri9:390.89:440.83:40-0.14:100.18:086:47Waxing Gibbous7Fri
8Sat10:260.810:300.84:28-0.24:570.18:086:47Full Moon8Sat
9Sun11:090.811:130.85:12-0.25:400.08:086:48Full Moon9Sun
10Mon11:490.811:530.85:54-0.26:210.08:086:49Full Moon10Mon
11Tue12:260.86:34-0.17:010.08:086:50Full Moon11Tue
12Wed12:320.81:030.87:13-0.17:400.08:086:50Waning Gibbous12Wed
13Thu1:100.71:390.87:51-0.18:180.18:086:51Waning Gibbous13Thu
14Fri1:500.72:160.88:280.08:560.18:086:52Waning Gibbous14Fri
15Sat2:300.72:530.79:060.09:350.18:086:52Waning Gibbous15Sat
16Sun3:130.73:320.79:470.110:180.18:086:53Third Quarter16Sun
17Mon4:000.74:150.710:330.111:050.18:086:54Third Quarter17Mon
18Tue4:510.75:020.711:260.211:590.08:086:55Third Quarter18Tue
19Wed5:490.75:560.712:260.28:086:55Third Quarter19Wed
20Thu6:510.76:560.712:560.01:280.28:086:56Waning Crescent20Thu
21Fri7:540.77:580.71:54-0.12:280.18:086:57Waning Crescent21Fri
22Sat8:540.88:580.72:50-0.23:240.08:076:58Waning Crescent22Sat
23Sun9:490.89:550.83:45-0.24:180.08:076:59Waning Crescent23Sun
24Mon10:420.910:500.84:38-0.35:10-0.18:076:59New Moon24Mon
25Tue11:320.911:430.95:30-0.46:01-0.28:077:00New Moon25Tue
26Wed12:211.06:22-0.46:52-0.28:067:01New Moon26Wed
27Thu12:350.91:091.07:13-0.47:43-0.38:067:01Waxing Crescent27Thu
28Fri1:280.91:580.98:05-0.48:36-0.38:067:02Waxing Crescent28Fri
29Sat2:210.92:470.98:59-0.39:30-0.38:057:03Waxing Crescent29Sat
30Sun3:160.93:380.99:55-0.210:27-0.28:057:04First Quarter30Sun
31Mon4:140.84:310.810:55-0.111:26-0.28:057:04First Quarter31Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8723651)

Common Questions About Largo Sound, Key Largo, FL Tides

Show All
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 12:17 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 13% 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 Crescent (13% 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