25.1133’ N, 80.4167’ W

Key Largo, South Sound, FL

81°
H 82°
L 73°
NE
16mph
Low tide
12:10 pm

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

TIDE TIMES for Tuesday, October 20, 2026
The tide is currently falling in Key Largo, South Sound, FL.
Next low tide : in 14m at 12:10 pm (0.6 ft)
Next high tide : 5:13 pm (1.7 ft)
Sunset today : 6:50 pm
Sunrise tomorrow : 7:22 am
Moon phase : First Quarter (69% illuminated)
Tide Station Location : Station #8723667
Common Questions About Tides

Key Largo, South Sound, FL Tides - Apr 1832

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun9:031.79:291.83:53-0.14:10-0.26:166:42New Moon1Sun
2Mon9:431.710:131.84:34-0.14:52-0.36:156:42New Moon2Mon
3Tue10:251.710:591.85:18-0.15:35-0.36:146:43Waxing Crescent3Tue
4Wed11:101.611:491.76:04-0.16:23-0.36:136:43Waxing Crescent4Wed
5Thu11:581.66:540.07:16-0.26:126:43Waxing Crescent5Thu
6Fri12:421.712:531.57:500.18:15-0.16:116:44First Quarter6Fri
7Sat1:411.61:551.58:530.19:22-0.16:106:44First Quarter7Sat
8Sun2:461.63:041.510:020.210:320.06:096:45First Quarter8Sun
9Mon3:531.54:151.511:110.111:390.06:086:45First Quarter9Mon
10Tue4:581.65:231.612:140.16:076:46Waxing Gibbous10Tue
11Wed5:581.66:231.712:41-0.11:110.06:066:46Waxing Gibbous11Wed
12Thu6:501.77:161.71:37-0.12:03-0.16:056:46Waxing Gibbous12Thu
13Fri7:371.78:041.82:28-0.12:50-0.26:046:47Full Moon13Fri
14Sat8:211.78:481.83:15-0.13:34-0.26:036:47Full Moon14Sat
15Sun9:021.79:301.83:59-0.14:16-0.26:026:48Full Moon15Sun
16Mon9:401.710:101.84:41-0.14:56-0.26:016:48Full Moon16Mon
17Tue10:181.610:491.75:220.05:36-0.16:006:49Waning Gibbous17Tue
18Wed10:561.511:281.66:020.16:16-0.16:006:49Waning Gibbous18Wed
19Thu11:341.56:430.26:570.05:596:50Waning Gibbous19Thu
20Fri12:091.512:141.47:260.37:410.15:586:50Waning Gibbous20Fri
21Sat12:521.41:001.38:130.38:300.25:576:50Third Quarter21Sat
22Sun1:411.41:521.39:070.49:270.35:566:51Third Quarter22Sun
23Mon2:351.32:521.310:070.410:280.35:556:51Third Quarter23Mon
24Tue3:341.33:551.311:060.411:260.35:546:52Third Quarter24Tue
25Wed4:321.44:571.412:000.35:536:52Waning Crescent25Wed
26Thu5:261.45:531.512:200.212:480.25:536:53Waning Crescent26Thu
27Fri6:161.56:451.61:100.11:330.05:526:53Waning Crescent27Fri
28Sat7:021.67:331.71:560.12:16-0.15:516:54Waning Crescent28Sat
29Sun7:481.78:201.82:420.02:59-0.25:506:54New Moon29Sun
30Mon8:321.79:071.93:27-0.13:43-0.35:506:55New Moon30Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8723667)

Common Questions About Key Largo, South Sound, FL Tides

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

Key Largo, South Sound, FL is currently in a transitional phase. Tonight's moon is 69% 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 Key Largo, South Sound, 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 Key Largo, South Sound, FL?

Tide predictions for Key Largo, South Sound, 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 Key Largo, South Sound, FL?

Tide data for Key Largo, South Sound, FL is sourced from NOAA Station #8723667. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8723667.

What is the moon phase in Key Largo, South Sound, FL tonight?

Tonight the moon over Key Largo, South Sound, FL is First Quarter (69% illuminated). This places Key Largo, South Sound, 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