25.1133’ N, 80.4167’ W

Key Largo, South Sound, FL

79°
H 83°
L 78°
NNE
1mph
High tide
4:07 am

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

TIDE TIMES for Sunday, September 20, 2026
The tide is currently rising in Key Largo, South Sound, FL.
Next low tide : 11:57 am (0.5 ft)
Next high tide : in 13m at 4:07 am (1.5 ft)
Sunset today : 7:20 pm
Sunrise tomorrow : 7:09 am
Moon phase : First Quarter (67% illuminated)
Tide Station Location : Station #8723667
Common Questions About Tides

Key Largo, South Sound, FL Tides - Feb 2092

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri3:001.43:121.410:120.010:44-0.27:036:06Third Quarter1Fri
2Sat4:081.44:191.411:190.011:49-0.37:036:06Waning Crescent2Sat
3Sun5:151.55:251.412:230.07:036:07Waning Crescent3Sun
4Mon6:161.56:271.512:50-0.31:23-0.17:026:08Waning Crescent4Mon
5Tue7:121.67:231.51:47-0.42:18-0.17:016:09Waning Crescent5Tue
6Wed8:021.78:141.62:40-0.43:09-0.27:016:09New Moon6Wed
7Thu8:491.79:021.63:29-0.43:57-0.27:006:10New Moon7Thu
8Fri9:321.79:471.64:16-0.44:43-0.27:006:11New Moon8Fri
9Sat10:131.610:301.65:01-0.35:27-0.26:596:11Waxing Crescent9Sat
10Sun10:521.611:121.55:45-0.36:09-0.26:596:12Waxing Crescent10Sun
11Mon11:301.511:531.46:28-0.26:52-0.16:586:13Waxing Crescent11Mon
12Tue12:081.47:110.07:35-0.16:576:13Waxing Crescent12Tue
13Wed12:361.312:471.37:550.18:210.06:576:14First Quarter13Wed
14Thu1:211.31:301.28:430.29:100.06:566:15First Quarter14Thu
15Fri2:121.22:181.29:370.210:040.16:556:15First Quarter15Fri
16Sat3:081.23:141.110:350.311:010.16:546:16First Quarter16Sat
17Sun4:091.24:161.111:340.311:560.06:546:16Waxing Gibbous17Sun
18Mon5:101.25:171.212:290.26:536:17Waxing Gibbous18Mon
19Tue6:061.36:131.312:480.01:190.26:526:18Waxing Gibbous19Tue
20Wed6:551.47:041.41:36-0.12:050.16:516:18Waxing Gibbous20Wed
21Thu7:411.57:521.52:21-0.22:480.06:506:19Full Moon21Thu
22Fri8:251.68:381.63:05-0.33:30-0.16:506:19Full Moon22Fri
23Sat9:071.69:231.63:48-0.34:12-0.26:496:20Full Moon23Sat
24Sun9:491.710:091.74:31-0.34:55-0.36:486:20Full Moon24Sun
25Mon10:311.710:571.75:16-0.35:40-0.36:476:21Waning Gibbous25Mon
26Tue11:151.611:461.76:03-0.36:28-0.36:466:22Waning Gibbous26Tue
27Wed12:021.66:54-0.27:19-0.36:456:22Waning Gibbous27Wed
28Thu12:401.612:531.57:48-0.18:17-0.36:446:23Third Quarter28Thu
29Fri1:381.51:511.48:490.09:20-0.26:436:23Third Quarter29Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8723667)

Common Questions About Key Largo, South Sound, FL Tides

Collapse All
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 67% 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 (67% 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