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 5h 46m 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 - Mar 2031

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat2:241.72:301.78:380.59:070.26:446:23First Quarter1Sat
2Sun3:241.73:321.69:400.610:070.26:436:24First Quarter2Sun
3Mon4:261.74:351.610:400.511:030.26:426:24Waxing Gibbous3Mon
4Tue5:241.75:351.711:330.411:530.16:416:25Waxing Gibbous4Tue
5Wed6:141.96:271.912:200.36:406:25Waxing Gibbous5Wed
6Thu6:592.07:142.012:380.01:020.16:396:26Waxing Gibbous6Thu
7Fri7:412.17:582.11:19-0.11:41-0.16:386:26Full Moon7Fri
8Sat8:202.28:402.21:59-0.22:18-0.26:376:27Full Moon8Sat
9Sun9:592.210:222.33:37-0.33:55-0.47:367:27Full Moon9Sun
10Mon10:372.311:042.44:15-0.34:33-0.57:357:28Full Moon10Mon
11Tue11:162.311:472.44:55-0.35:13-0.57:347:28Waning Gibbous11Tue
12Wed11:572.25:37-0.25:57-0.57:337:29Waning Gibbous12Wed
13Thu12:332.312:422.26:24-0.16:46-0.57:327:29Waning Gibbous13Thu
14Fri1:242.21:322.17:150.17:42-0.47:317:30Third Quarter14Fri
15Sat2:202.12:292.08:150.28:45-0.37:307:30Third Quarter15Sat
16Sun3:232.13:362.09:220.29:55-0.27:297:31Third Quarter16Sun
17Mon4:312.14:492.010:330.211:05-0.27:287:31Third Quarter17Mon
18Tue5:382.16:002.111:400.17:277:32Waning Crescent18Tue
19Wed6:402.27:032.312:09-0.312:41-0.17:267:32Waning Crescent19Wed
20Thu7:362.38:002.41:08-0.31:35-0.37:257:32Waning Crescent20Thu
21Fri8:252.48:512.52:01-0.42:25-0.57:247:33New Moon21Fri
22Sat9:112.59:382.62:51-0.43:12-0.67:237:33New Moon22Sat
23Sun9:542.510:222.63:37-0.43:56-0.67:227:34New Moon23Sun
24Mon10:352.411:042.54:21-0.34:39-0.67:217:34New Moon24Mon
25Tue11:152.311:452.45:04-0.25:21-0.57:207:35Waxing Crescent25Tue
26Wed11:542.25:450.06:03-0.37:197:35Waxing Crescent26Wed
27Thu12:262.312:332.16:270.26:46-0.17:187:35Waxing Crescent27Thu
28Fri1:072.11:132.07:110.47:310.17:177:36Waxing Crescent28Fri
29Sat1:522.01:581.97:590.58:220.37:167:36First Quarter29Sat
30Sun2:401.92:491.88:540.69:190.47:157:37First Quarter30Sun
31Mon3:351.83:491.79:540.710:200.57:147:37First Quarter31Mon
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