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

TIDE TIMES for Wednesday, June 17, 2026
The tide is currently falling in Rock Harbor, Key Largo, FL.
Next low tide : in 1h 08m at 5:35 pm (-0.6 ft)
Next high tide (tomorrow) : 12:08 am (2.6 ft)
Sunset today : 8:13 pm
Sunrise tomorrow : 6:31 am
Moon phase : Waxing Crescent (9% illuminated)
Tide Station Location : Station #8723689
Common Questions About Tides

Rock Harbor, Key Largo, FL Tides - Dec 2024

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun8:522.58:522.32:160.12:450.76:505:31New Moon1Sun
2Mon9:342.59:332.32:540.13:230.76:515:31New Moon2Mon
3Tue10:162.510:162.33:330.14:040.76:515:31Waxing Crescent3Tue
4Wed11:002.511:032.24:150.14:480.76:525:32Waxing Crescent4Wed
5Thu11:462.411:542.25:020.25:370.66:535:32Waxing Crescent5Thu
6Fri12:342.45:540.36:320.66:535:32Waxing Crescent6Fri
7Sat12:512.21:252.36:520.47:320.56:545:32First Quarter7Sat
8Sun1:532.22:202.37:570.48:340.36:555:32First Quarter8Sun
9Mon2:582.33:172.39:030.59:350.16:555:32First Quarter9Mon
10Tue4:042.44:152.310:070.510:34-0.16:565:33Waxing Gibbous10Tue
11Wed5:072.55:132.411:070.411:29-0.36:575:33Waxing Gibbous11Wed
12Thu6:062.66:102.412:030.36:575:33Waxing Gibbous12Thu
13Fri7:012.77:052.512:23-0.512:560.26:585:34Full Moon13Fri
14Sat7:542.77:572.51:15-0.51:470.26:595:34Full Moon14Sat
15Sun8:442.78:482.52:06-0.62:370.26:595:34Full Moon15Sun
16Mon9:322.79:372.42:55-0.53:260.27:005:35Full Moon16Mon
17Tue10:192.610:252.43:45-0.44:160.27:005:35Waning Gibbous17Tue
18Wed11:042.511:142.24:34-0.25:060.37:015:36Waning Gibbous18Wed
19Thu11:492.35:230.05:560.47:015:36Waning Gibbous19Thu
20Fri12:022.112:332.26:130.26:480.47:025:37Waning Gibbous20Fri
21Sat12:532.01:172.17:060.47:410.47:025:37Third Quarter21Sat
22Sun1:451.92:022.08:000.68:340.47:035:38Third Quarter22Sun
23Mon2:401.92:501.98:560.79:250.47:035:38Third Quarter23Mon
24Tue3:361.93:401.89:510.710:150.37:045:39Third Quarter24Tue
25Wed4:321.94:321.810:440.711:020.27:045:39Waning Crescent25Wed
26Thu5:252.05:231.811:320.711:470.17:055:40Waning Crescent26Thu
27Fri6:152.06:141.912:180.67:055:40Waning Crescent27Fri
28Sat7:032.17:012.012:300.01:010.57:055:41Waning Crescent28Sat
29Sun7:482.27:472.01:12-0.11:430.47:065:42New Moon29Sun
30Mon8:332.38:332.11:54-0.22:240.37:065:42New Moon30Mon
31Tue9:162.39:162.12:36-0.33:060.27:065:43New Moon31Tue
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 8:51 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 spring phase. Tonight's moon is 9% 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 near their weekly maximum.

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 (9% illuminated). This places Rock Harbor, Key Largo, FL in a spring tide cycle, so tidal ranges are near their weekly maximum 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