25.1400’ N, 80.3950’ W

Largo Sound, Key Largo, FL

85°
H 87°
L 77°
E
9mph
High tide
4:52 pm

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

TIDE TIMES for Friday, September 18, 2026
The tide is currently rising in Largo Sound, Key Largo, FL.
Next low tide : 11:42 pm (0.6 ft)
Next high tide : in 1h 20m at 4:52 pm (0.8 ft)
Sunset today : 7:22 pm
Sunrise tomorrow : 7:08 am
Moon phase : First Quarter (48% illuminated)
Tide Station Location : Station #8723651
Common Questions About Tides

Largo Sound, Key Largo, FL Tides - Jan 1865

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun12:520.91:210.97:25-0.27:57-0.17:115:47Waxing Crescent1Sun
2Mon1:450.92:110.98:19-0.18:52-0.17:115:48Waxing Crescent2Mon
3Tue2:410.93:030.99:17-0.19:51-0.17:115:49First Quarter3Tue
4Wed3:420.84:000.810:190.010:54-0.17:125:49First Quarter4Wed
5Thu4:460.85:010.811:240.011:57-0.17:125:50First Quarter5Thu
6Fri5:520.86:040.812:290.17:125:51Waxing Gibbous6Fri
7Sat6:560.87:060.812:58-0.21:300.17:125:52Waxing Gibbous7Sat
8Sun7:560.88:050.81:56-0.22:270.07:125:52Waxing Gibbous8Sun
9Mon8:500.98:580.82:50-0.23:200.07:125:53Waxing Gibbous9Mon
10Tue9:380.99:460.83:39-0.24:080.07:125:54Full Moon10Tue
11Wed10:220.910:310.84:26-0.24:530.07:125:55Full Moon11Wed
12Thu11:030.911:120.85:10-0.25:36-0.17:125:55Full Moon12Thu
13Fri11:410.911:520.85:52-0.26:18-0.17:125:56Full Moon13Fri
14Sat12:180.86:32-0.16:570.07:125:57Waning Gibbous14Sat
15Sun12:320.812:540.87:11-0.17:370.07:125:57Waning Gibbous15Sun
16Mon1:110.71:300.87:500.08:160.07:125:58Waning Gibbous16Mon
17Tue1:520.72:070.78:290.18:570.07:125:59Waning Gibbous17Tue
18Wed2:350.72:470.79:120.19:410.07:126:00Third Quarter18Wed
19Thu3:220.73:310.710:000.210:300.17:126:01Third Quarter19Thu
20Fri4:150.64:210.610:540.211:250.07:126:01Third Quarter20Fri
21Sat5:140.65:190.611:540.27:126:02Third Quarter21Sat
22Sun6:160.76:200.612:220.012:540.27:116:03Waning Crescent22Sun
23Mon7:170.77:210.71:180.01:500.17:116:04Waning Crescent23Mon
24Tue8:120.88:190.72:12-0.12:430.07:116:04Waning Crescent24Tue
25Wed9:040.89:130.83:03-0.23:330.07:116:05Waning Crescent25Wed
26Thu9:530.910:050.83:52-0.34:21-0.17:106:06New Moon26Thu
27Fri10:400.910:550.94:41-0.35:09-0.27:106:06New Moon27Fri
28Sat11:260.911:450.95:30-0.45:58-0.37:106:07New Moon28Sat
29Sun12:120.96:19-0.46:47-0.37:096:08Waxing Crescent29Sun
30Mon12:360.91:000.97:10-0.37:38-0.37:096:09Waxing Crescent30Mon
31Tue1:280.91:490.98:02-0.28:32-0.37:086:09Waxing Crescent31Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8723651)

Common Questions About Largo Sound, Key Largo, FL Tides

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Is this week a spring tide or neap tide in Largo Sound, Key Largo, FL?

Largo Sound, Key Largo, FL is currently in a neap phase. Tonight's moon is 48% 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 minimum.

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 (48% illuminated). This places Largo Sound, Key Largo, FL in a neap tide cycle, so tidal ranges are near their weekly minimum 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