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

TIDE TIMES for Thursday, June 25, 2026
The tide is currently falling in Rock Harbor, Key Largo, FL.
Next low tide : in 5h 20m at 12:29 pm (0.0 ft)
Next high tide : 7:01 pm (2.0 ft)
Sunset today : 8:15 pm
Sunrise tomorrow : 6:33 am
Moon phase : Waxing Gibbous (84% illuminated)
Tide Station Location : Station #8723689
Common Questions About Tides

Rock Harbor, Key Largo, FL Tides - Dec 2040

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat6:212.56:262.412:200.66:505:31Waning Crescent1Sat
2Sun7:102.67:142.412:350.01:060.56:515:31New Moon2Sun
3Mon7:582.78:012.51:20-0.21:510.46:515:31New Moon3Mon
4Tue8:472.88:502.52:06-0.32:380.36:525:31New Moon4Tue
5Wed9:362.89:402.62:54-0.43:260.36:535:32New Moon5Wed
6Thu10:262.810:332.53:44-0.44:170.36:535:32Waxing Crescent6Thu
7Fri11:182.711:292.54:37-0.35:120.36:545:32Waxing Crescent7Fri
8Sat12:122.65:34-0.26:120.36:555:32Waxing Crescent8Sat
9Sun12:282.41:082.56:350.07:150.36:555:32First Quarter9Sun
10Mon1:322.42:052.47:410.28:200.26:565:33First Quarter10Mon
11Tue2:382.33:052.48:480.39:230.16:575:33First Quarter11Tue
12Wed3:452.34:042.39:520.410:220.06:575:33First Quarter12Wed
13Thu4:482.45:002.310:520.411:15-0.16:585:34Waxing Gibbous13Thu
14Fri5:462.45:532.311:460.46:595:34Waxing Gibbous14Fri
15Sat6:382.56:422.312:04-0.212:350.46:595:34Waxing Gibbous15Sat
16Sun7:252.57:272.312:51-0.21:200.37:005:35Full Moon16Sun
17Mon8:082.58:092.21:34-0.22:030.37:005:35Full Moon17Mon
18Tue8:492.48:492.22:16-0.22:450.47:015:36Full Moon18Tue
19Wed9:282.49:282.22:56-0.23:250.47:015:36Full Moon19Wed
20Thu10:062.310:082.13:36-0.14:040.47:025:37Waning Gibbous20Thu
21Fri10:442.310:472.04:150.04:440.57:025:37Waning Gibbous21Fri
22Sat11:222.211:292.04:530.15:250.57:035:38Waning Gibbous22Sat
23Sun12:012.15:330.36:070.57:035:38Waning Gibbous23Sun
24Mon12:131.912:422.06:160.46:520.57:045:39Third Quarter24Mon
25Tue1:021.91:252.07:030.57:410.57:045:39Third Quarter25Tue
26Wed1:541.82:111.97:570.68:330.47:055:40Third Quarter26Wed
27Thu2:521.93:021.98:560.69:260.37:055:40Third Quarter27Thu
28Fri3:511.93:571.99:550.610:200.17:055:41Waning Crescent28Fri
29Sat4:522.04:542.010:520.511:13-0.17:065:42Waning Crescent29Sat
30Sun5:502.25:512.011:460.47:065:42Waning Crescent30Sun
31Mon6:452.36:462.112:05-0.412:380.27:065:43Waning Crescent31Mon
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 3:45 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 84% 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 Gibbous (84% 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