Tides Today & Tomorrow in Rock Harbor, Key Largo, FL

TIDE TIMES for Friday, June 19, 2026
The tide is currently falling in Rock Harbor, Key Largo, FL.
Next low tide : in 1h 05m at 7:28 pm (-0.2 ft)
Next high tide (tomorrow) : 1:49 am (2.4 ft)
Sunset today : 8:14 pm
Sunrise tomorrow : 6:32 am
Moon phase : Waxing Crescent (27% illuminated)
Tide Station Location : Station #8723689
Common Questions About Tides

Rock Harbor, Key Largo, FL Tides - Apr 2021

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu12:272.612:362.46:24-0.16:45-0.67:127:38Waning Gibbous1Thu
2Fri1:202.51:302.37:190.17:44-0.47:117:38Waning Gibbous2Fri
3Sat2:192.32:302.18:200.38:48-0.27:107:39Third Quarter3Sat
4Sun3:232.23:362.09:280.49:580.07:097:39Third Quarter4Sun
5Mon4:312.14:482.010:380.411:070.17:087:40Third Quarter5Mon
6Tue5:392.15:582.011:440.47:077:40Waning Crescent6Tue
7Wed6:392.16:592.112:100.112:420.37:067:40Waning Crescent7Wed
8Thu7:312.27:522.21:060.01:320.17:057:41Waning Crescent8Thu
9Fri8:152.28:372.31:540.02:160.07:047:41Waning Crescent9Fri
10Sat8:542.39:172.32:380.02:56-0.17:037:42New Moon10Sat
11Sun9:302.39:542.43:180.03:33-0.27:027:42New Moon11Sun
12Mon10:042.310:302.43:550.14:08-0.27:017:43New Moon12Mon
13Tue10:372.211:052.34:310.14:42-0.27:007:43New Moon13Tue
14Wed11:102.211:412.35:060.25:15-0.16:597:44Waxing Crescent14Wed
15Thu11:442.15:400.35:490.06:587:44Waxing Crescent15Thu
16Fri12:182.212:202.06:150.56:250.16:577:44Waxing Crescent16Fri
17Sat12:582.112:591.96:520.67:050.26:577:45Waxing Crescent17Sat
18Sun1:432.01:431.87:360.77:540.36:567:45First Quarter18Sun
19Mon2:341.92:371.88:310.88:530.46:557:46First Quarter19Mon
20Tue3:321.93:411.89:360.810:000.46:547:46First Quarter20Tue
21Wed4:341.94:511.910:420.611:060.36:537:47First Quarter21Wed
22Thu5:352.05:582.011:420.46:527:47Waxing Gibbous22Thu
23Fri6:322.26:592.212:070.212:360.16:517:48Waxing Gibbous23Fri
24Sat7:242.37:552.51:020.01:27-0.26:507:48Waxing Gibbous24Sat
25Sun8:132.48:472.71:55-0.12:15-0.56:507:49Full Moon25Sun
26Mon9:012.59:382.82:45-0.23:04-0.76:497:49Full Moon26Mon
27Tue9:492.610:282.83:34-0.33:52-0.86:487:50Full Moon27Tue
28Wed10:382.611:192.84:24-0.34:42-0.86:477:50Full Moon28Wed
29Thu11:282.55:15-0.25:34-0.76:467:51Waning Gibbous29Thu
30Fri12:102.712:202.46:080.06:29-0.56:467:51Waning Gibbous30Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8723689)

Common Questions About Rock Harbor, Key Largo, FL Tides

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What time does the tide turn (slack tide) in Rock Harbor, Key Largo, FL today?

Slack tide in Rock Harbor, Key Largo, FL is approximately 10:38 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 Rock Harbor, Key Largo, FL?

Rock Harbor, Key Largo, FL is currently in a transitional phase. Tonight's moon is 27% 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 Rock Harbor, 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 Rock Harbor, Key Largo, FL?

Tide predictions for Rock Harbor, 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 Rock Harbor, Key Largo, FL?

Tide data for Rock Harbor, Key Largo, FL is sourced from NOAA Station #8723689. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8723689.

What is the moon phase in Rock Harbor, Key Largo, FL tonight?

Tonight the moon over Rock Harbor, Key Largo, FL is Waxing Crescent (27% illuminated). This places Rock Harbor, Key Largo, 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