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

TIDE TIMES for Wednesday, June 17, 2026
The tide is currently rising in Rock Harbor, Key Largo, FL.
Next low tide : 5:35 pm (-0.6 ft)
Next high tide : in 2h 29m at 11:29 am (2.4 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 - May 2027

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat5:361.96:102.011:560.46:457:51Waning Crescent1Sat
2Sun6:262.07:032.112:200.512:400.26:457:52Waning Crescent2Sun
3Mon7:142.17:512.31:060.41:230.06:447:52Waning Crescent3Mon
4Tue7:592.18:382.41:510.32:04-0.26:437:53Waning Crescent4Tue
5Wed8:442.29:242.52:340.22:46-0.36:437:53New Moon5Wed
6Thu9:292.310:102.63:170.13:30-0.56:427:54New Moon6Thu
7Fri10:142.310:582.64:020.14:16-0.56:417:54New Moon7Fri
8Sat11:022.311:472.64:480.15:05-0.56:417:55Waxing Crescent8Sat
9Sun11:532.35:380.15:57-0.46:407:56Waxing Crescent9Sun
10Mon12:382.512:472.36:320.26:54-0.36:397:56Waxing Crescent10Mon
11Tue1:322.41:472.27:310.27:56-0.16:397:57First Quarter11Tue
12Wed2:292.32:512.28:350.29:020.06:387:57First Quarter12Wed
13Thu3:282.33:582.29:410.110:090.16:387:58First Quarter13Thu
14Fri4:282.25:052.210:430.011:120.26:377:58First Quarter14Fri
15Sat5:262.26:082.311:41-0.16:377:59Waxing Gibbous15Sat
16Sun6:222.27:062.412:110.212:34-0.26:367:59Waxing Gibbous16Sun
17Mon7:142.27:572.41:040.21:24-0.36:368:00Waxing Gibbous17Mon
18Tue8:032.28:442.51:540.22:10-0.46:358:00Full Moon18Tue
19Wed8:482.29:282.42:400.22:54-0.46:358:01Full Moon19Wed
20Thu9:312.210:102.43:230.23:37-0.36:348:01Full Moon20Thu
21Fri10:112.210:502.34:050.24:18-0.26:348:02Full Moon21Fri
22Sat10:512.111:292.34:470.34:59-0.16:348:02Waning Gibbous22Sat
23Sun11:312.15:280.45:400.06:338:03Waning Gibbous23Sun
24Mon12:092.212:122.06:100.56:220.16:338:03Waning Gibbous24Mon
25Tue12:492.112:551.96:530.57:050.36:338:04Waning Gibbous25Tue
26Wed1:302.01:421.87:400.67:510.46:328:04Third Quarter26Wed
27Thu2:132.02:331.88:290.68:430.56:328:05Third Quarter27Thu
28Fri2:591.93:291.89:210.59:390.66:328:05Third Quarter28Fri
29Sat3:481.94:271.910:130.410:360.66:328:06Third Quarter29Sat
30Sun4:391.95:262.011:030.311:310.66:328:06Waning Crescent30Sun
31Mon5:321.96:232.111:520.16:318:07Waning Crescent31Mon
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 2:32 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