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

TIDE TIMES for Friday, June 19, 2026
The tide is currently rising in Rock Harbor, Key Largo, FL.
Next low tide : 7:28 pm (-0.2 ft)
Next high tide : in 3h 58m at 1:20 pm (2.3 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 - Dec 2021

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed6:032.66:122.512:020.46:505:31Waning Crescent1Wed
2Thu6:582.87:042.612:22-0.312:540.26:505:31Waning Crescent2Thu
3Fri7:502.97:562.71:12-0.51:450.16:515:31New Moon3Fri
4Sat8:423.08:482.72:03-0.62:360.16:525:31New Moon4Sat
5Sun9:343.09:412.72:55-0.63:280.16:535:32New Moon5Sun
6Mon10:262.910:352.63:48-0.64:210.16:535:32Waxing Crescent6Mon
7Tue11:192.811:312.54:42-0.45:170.26:545:32Waxing Crescent7Tue
8Wed12:132.65:40-0.26:170.36:555:32Waxing Crescent8Wed
9Thu12:302.41:082.56:410.17:200.46:555:32First Quarter9Thu
10Fri1:312.32:052.47:450.38:240.46:565:33First Quarter10Fri
11Sat2:352.23:022.38:490.49:240.36:575:33First Quarter11Sat
12Sun3:392.23:582.29:500.510:190.36:575:33First Quarter12Sun
13Mon4:402.24:512.110:460.611:090.26:585:34Waxing Gibbous13Mon
14Tue5:342.25:392.111:370.611:540.16:585:34Waxing Gibbous14Tue
15Wed6:222.36:242.112:220.56:595:34Waxing Gibbous15Wed
16Thu7:052.37:052.112:360.11:050.57:005:35Waxing Gibbous16Thu
17Fri7:452.37:452.11:160.01:440.57:005:35Full Moon17Fri
18Sat8:242.38:242.11:550.02:220.57:015:36Full Moon18Sat
19Sun9:022.39:032.12:320.03:000.47:015:36Full Moon19Sun
20Mon9:412.39:422.13:080.03:360.57:025:36Full Moon20Mon
21Tue10:202.310:222.13:440.04:130.57:025:37Waning Gibbous21Tue
22Wed10:592.211:032.04:210.14:510.57:035:37Waning Gibbous22Wed
23Thu11:392.211:482.05:000.15:320.57:035:38Waning Gibbous23Thu
24Fri12:212.15:430.26:180.47:045:39Waning Gibbous24Fri
25Sat12:361.91:052.16:320.37:090.37:045:39Third Quarter25Sat
26Sun1:312.01:532.07:290.48:060.27:045:40Third Quarter26Sun
27Mon2:302.02:452.08:310.49:050.07:055:40Third Quarter27Mon
28Tue3:342.13:432.09:360.410:05-0.27:055:41Third Quarter28Tue
29Wed4:382.24:442.110:380.311:03-0.47:065:41Waning Crescent29Wed
30Thu5:412.35:442.211:370.211:59-0.67:065:42Waning Crescent30Thu
31Fri6:392.56:432.312:340.07:065:43Waning Crescent31Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8723689)

Common Questions About Rock Harbor, Key Largo, FL Tides

Show All
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 4:24 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