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 (tomorrow) : 8:03 am (-0.1 ft)
Next high tide (tomorrow) : in 3h 11m at 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 - Dec 2020

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue9:282.69:302.32:530.13:210.66:505:31Full Moon1Tue
2Wed10:092.510:102.33:290.13:580.66:515:31Waning Gibbous2Wed
3Thu10:502.510:532.24:080.24:380.76:515:31Waning Gibbous3Thu
4Fri11:342.411:392.24:490.25:230.76:525:32Waning Gibbous4Fri
5Sat12:212.45:360.36:130.76:535:32Waning Gibbous5Sat
6Sun12:312.21:102.36:310.47:110.66:535:32Third Quarter6Sun
7Mon1:302.22:042.37:330.48:130.56:545:32Third Quarter7Mon
8Tue2:352.23:012.38:390.59:160.36:555:32Third Quarter8Tue
9Wed3:412.34:002.39:450.410:160.06:555:32Third Quarter9Wed
10Thu4:462.44:592.410:470.311:13-0.26:565:33Waning Crescent10Thu
11Fri5:462.65:562.511:450.26:575:33Waning Crescent11Fri
12Sat6:432.76:512.612:07-0.412:390.16:575:33Waning Crescent12Sat
13Sun7:372.87:442.612:59-0.61:320.06:585:34New Moon13Sun
14Mon8:282.98:352.61:51-0.72:230.06:595:34New Moon14Mon
15Tue9:182.89:262.62:42-0.73:130.06:595:34New Moon15Tue
16Wed10:072.810:162.53:32-0.64:040.07:005:35Waxing Crescent16Wed
17Thu10:562.611:062.44:23-0.44:550.17:005:35Waxing Crescent17Thu
18Fri11:442.511:582.35:14-0.25:480.27:015:36Waxing Crescent18Fri
19Sat12:322.36:080.06:430.37:015:36Waxing Crescent19Sat
20Sun12:502.11:202.27:030.27:400.47:025:37First Quarter20Sun
21Mon1:452.02:092.18:000.48:360.47:025:37First Quarter21Mon
22Tue2:421.93:002.08:590.69:300.47:035:38First Quarter22Tue
23Wed3:401.93:511.99:550.610:210.37:035:38First Quarter23Wed
24Thu4:361.94:411.910:470.611:080.27:045:39Waxing Gibbous24Thu
25Fri5:282.05:311.911:360.611:520.17:045:39Waxing Gibbous25Fri
26Sat6:162.16:182.012:200.57:055:40Waxing Gibbous26Sat
27Sun7:012.27:032.012:340.01:020.47:055:40Waxing Gibbous27Sun
28Mon7:452.27:462.01:14-0.11:420.47:055:41Full Moon28Mon
29Tue8:272.38:292.11:52-0.22:210.37:065:42Full Moon29Tue
30Wed9:082.39:112.12:31-0.33:000.27:065:42Full Moon30Wed
31Thu9:502.39:522.13:10-0.33:400.27:065:43Full Moon31Thu
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 4:56 am — 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