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 3h 25m 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 - May 2031

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu4:411.95:131.911:010.511:250.56:457:51First Quarter1Thu
2Fri5:362.06:122.011:520.36:457:52Waxing Gibbous2Fri
3Sat6:292.17:072.212:180.412:400.16:447:52Waxing Gibbous3Sat
4Sun7:202.27:582.41:070.31:26-0.16:437:53Waxing Gibbous4Sun
5Mon8:082.38:472.51:540.12:12-0.46:437:53Full Moon5Mon
6Tue8:562.49:362.62:410.02:58-0.56:427:54Full Moon6Tue
7Wed9:442.410:242.73:28-0.13:45-0.66:417:55Full Moon7Wed
8Thu10:332.511:142.74:16-0.14:34-0.76:417:55Full Moon8Thu
9Fri11:242.55:06-0.15:26-0.66:407:56Waning Gibbous9Fri
10Sat12:042.712:172.55:59-0.16:20-0.56:397:56Waning Gibbous10Sat
11Sun12:572.61:132.46:550.07:19-0.36:397:57Waning Gibbous11Sun
12Mon1:512.52:132.37:560.08:22-0.16:387:57Third Quarter12Mon
13Tue2:492.43:172.39:000.09:270.06:387:58Third Quarter13Tue
14Wed3:482.34:232.210:030.010:320.16:377:58Third Quarter14Wed
15Thu4:482.35:282.311:04-0.111:330.26:377:59Waning Crescent15Thu
16Fri5:472.26:282.312:00-0.16:367:59Waning Crescent16Fri
17Sat6:422.27:232.412:290.212:52-0.26:368:00Waning Crescent17Sat
18Sun7:322.28:122.41:200.21:39-0.36:358:00Waning Crescent18Sun
19Mon8:182.28:562.42:080.22:24-0.36:358:01New Moon19Mon
20Tue9:012.29:372.42:520.23:06-0.36:348:01New Moon20Tue
21Wed9:412.210:162.43:330.23:47-0.26:348:02New Moon21Wed
22Thu10:202.210:552.34:140.24:26-0.26:348:02New Moon22Thu
23Fri10:592.111:332.34:530.35:05-0.16:338:03Waxing Crescent23Fri
24Sat11:382.15:320.35:430.06:338:03Waxing Crescent24Sat
25Sun12:112.212:182.06:120.46:220.16:338:04Waxing Crescent25Sun
26Mon12:502.11:011.96:530.47:030.36:328:04Waxing Crescent26Mon
27Tue1:312.11:471.97:370.57:490.46:328:05First Quarter27Tue
28Wed2:142.02:381.98:250.58:400.56:328:05First Quarter28Wed
29Thu3:012.03:331.99:170.49:380.56:328:06First Quarter29Thu
30Fri3:511.94:321.910:110.310:370.56:328:06First Quarter30Fri
31Sat4:452.05:332.011:060.111:350.46:318:07Waxing Gibbous31Sat
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